| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 208308000 | FRACTIONATION | 85 |
| 20080289998 | Fuel composition - Unleaded blend compositions, as well as formulated gasolines containing them have a Motor Octane Number (MON) of at least 80 comprising either:
| 11-27-2008 |
| 20110174693 | METHOD FOR SEPARATING OIL FROM WATER BY INJECTING SIMULTANEOUSLY A LIQUIFIED GAS INTO THE GRAVITY SEPARATION DEVICE - The invention provides a method of phase separation of a hydrocarbon containing mixed phase fluid composition into at least two separted fluid phases which method comprises introducing ( | 07-21-2011 |
| 20110210046 | Starting-up method of fractionator - A start-up method of a fractionator which fractionally distills FT synthesized hydrocarbons produced by the Fischer-Tropsch synthesis reaction, the method includes: discharging light FT synthesized hydrocarbons which exist in a gaseous state in an FT reactor performing the Fischer-Tropsch synthesis reaction from the FT reactor to the outside; cooling down the light FT synthesized hydrocarbons discharged from the FT reactor for liquefaction; supplying the liquefied light FT synthesized hydrocarbons to the fractionator; and heating the light FT synthesized hydrocarbons and circulating the light FT synthesized hydrocarbons to the fractionator. | 09-01-2011 |
| 20110240526 | Debris Separation Device and Method of Use - A device for use in separating debris from a flowing stream which comprises a substantially hollow, substantially conical shaped structure comprising a top end member and a plurality of adjacently positioned side members angularly extending from a top end member to a substantially circular bottom end. The top end member has a smaller diameter than the circular bottom end. The adjacently positioned side members are configured to provide multiple tiers in a vertical plane in the conically shaped structure. The multiple tiers comprise a plurality of apertures in a horizontal plane in the conically shaped structure. The plurality of apertures are configured for separating large debris particles, generally formed from coke and spent catalyst, from a flowing fluidized catalytic cracking stream, and directing the captured debris toward the circular bottom end of the device. A method of separating debris from a flowing stream is also provided. In particular, the device and method are useful for separating coke deposits in a fluidized catalytic cracking (FCC) process. | 10-06-2011 |
| 20120000830 | PROCESS FOR UPGRADING HEAVY OIL AND BITUMEN PRODUCTS - A process for upgrading bitumen recovered from an oil reservoir without hydrogen production is particularly useful in field upgrading applications. In this process, recovered bitumen enters a fractionator and is contacted with heated gases from a fluidized bed reactor. The bitumen and heated gases are fractionated into segregated products including at least a liquid pitch, unstable fractions, and an upgraded liquid product. The liquid pitch is introduced into the reactor to produce a vapor phase liquid product; the reactor comprises solid particles moving through the reactor and a fluidizing gas fluidizing the solid particles at a conversion temperature which is suitable for facilitating the conversion of at least some of the liquid pitch into the vapor phase liquid product. The heated gases comprising the vapor phase liquid product and fluidizing gas are directed from the reactor to the fractionator to contact the bitumen stream. In this process, enough of the segregated unstable fractions are burned that the liquid product and any remaining unstable fractions meets pipeline specifications without hydrogen treatment of any of the remaining unstable fractions. | 01-05-2012 |
| 20120211402 | PROCESS FOR CONVERTING A LIQUID FEED MATERIAL INTO A VAPOR PHASE PRODUCT - A liquid feed material such as a heavy hydrocarbon feed in liquid form is contacted with a fluidized bed of heated solid particles which have a bulk horizontal velocity which is generally perpendicular to the flow of a fluidizing medium. The liquid feed material reacts on the solid particles to produce a vapor phase product, which vapor phase product is collected in a vapor collection apparatus. | 08-23-2012 |
| 208309000 | Deasphalting | 27 |
| 20080289999 | Process for Pre-Refining Crude Oil with Moderate Multi-Step Hydroconversion of Virgin Asphalt in the Presence of Diluent - For pre-refining a crude oil P, which P is fractionated into several fractions, typically hydrotreating, hydrocracking or hydroconverting some thereof, then re-composing said fractions and in general producing at least two pre-refined oils Pa, Pc, Pa being a high quality non-asphaltenic oil and Pc being a residual oil. The process typically comprises at least one initial distillation step and one deasphalting step SDA with a solvent with a molecular weight of at least 50 to separate a deasphalted oil DAO from a virgin asphalt stream AS. AS is hydroconverted in at least 2 ebullated bed reactors in series, with a moderate conversion of less than 56%, mixed with a virgin diluent comprising light fractions. The DAO is typically hydrocracked with a limited conversion of less than 80%. | 11-27-2008 |
| 20090014359 | Process for separating colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture - Process for separating colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture using a membrane having a feed side and a permeate side, by contacting the hydrocarbon mixture with the feed side of the membrane, and by removing at the permeate side a hydrocarbon permeate having a reduced content of colour bodies and/or asphalthenic contaminants, wherein the membrane is arranged in a spirally wound membrane module. | 01-15-2009 |
| 20090057203 | Enhancement of saturates content in heavy hydrocarbons utilizing ultrafiltration - This invention relates to an ultrafiltration process for separating a heavy hydrocarbon stream to produce an enriched saturates content stream(s) utilizing an ultrafiltration separations process. The enriched saturates content streams can then be further processed in refinery and petrochemical processes that will benefit from the higher content of saturated hydrocarbons produced from this separations process. The invention may be utilized to separate heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumen, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams into enriched saturates content product streams. The invention provides an economical method for separating heavy hydrocarbon stream components by molecular species instead of molecular boiling points. | 03-05-2009 |
| 20090127166 | Methods of isolating and using components from a high solvency dispersive power (HSDP) crude oil - Method of isolating active resins from a high solvency dispersive power (HSDP) crude oil includes providing a HSDP crude oil, deasphalting the HSDP crude oil into at least a deasphalted oil (DAO) fraction and a first asphaltenes fraction, deasphalting the first asphaltenes fraction to isolate active resins from a second asphaltenes fraction, and combining the DAO fraction and the second asphaltenes fraction to form a de-resinated crude. Method of using components isolated from a high solvency dispersive power (HSDP) crude oil includes providing a HSDP crude oil, deasphalting the HSDP crude oil into at least a deasphalted oil (DAO) fraction and a first asphaltenes fraction, deasphalting the first asphaltenes fraction to isolate active resins from a second asphaltenes fraction, and selecting at least one of the DAO fraction, the active resins, or the second asphaltenes fraction for use in a refinery process. | 05-21-2009 |
| 20090166266 | INTEGRATED SOLVENT DEASPHALTING AND DEWATERING - A method for dewatering and deasphalting a hydrocarbon feed is provided. A hydrocarbon feed containing one or more hydrocarbons, asphaltenes and water can be mixed or otherwise combined with one or more solvents. The addition of the solvent sufficiently decreases the density of the hydrocarbon feed to enable gravity settling of the water phase, providing an oil phase containing one or more hydrocarbons, asphaltenes and solvents. The asphaltenes can be separated from the oil phase to provide an asphaltene mixture containing asphaltenes and a portion of the solvents and a deasphalted oil containing one or more hydrocarbons and the balance of the solvents. The solvents can be separated from the asphaltenes and deasphalted oil, and recycled to the initial mixing step wherein the solvent is mixed or otherwise combined with one or more solvents. | 07-02-2009 |
| 20090173668 | PROCESSING ASPHALTENE-CONTAINING TAILINGS - Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand. Embodiments of the method can include a flotation separation and a hydrophobic agglomeration separation. Flotation can be used to separate the asphaltene-containing tailings into an asphaltene-rich froth and an asphaltene-depleted aqueous phase. The asphaltene-rich froth, or an asphaltene-rich slurry formed from the asphaltene-rich froth, then can be separated into a heavy mineral concentrate and a light tailings. Hydrophobic agglomeration can be used to recover an asphaltene concentrate from the light tailings. Another flotation separation can be included to remove sulfur-containing minerals from the heavy mineral concentrate. Oxygen-containing minerals also can be recovered from the heavy mineral concentrate. Water removed by the various separation steps can be recycled and its heat energy recovered. | 07-09-2009 |
| 20110073528 | Method for Deasphalting and Extracting Hydrocarbon Oils - Provided herein are processes for deasphalting and extracting a hydrocarbon oil. The processes comprise providing an oil comprising asphaltenes and/or other impurities, combining the oil with a polar solvent an extracting agent to provide a mixture, and applying a stimulus to the mixture so that at least a portion of any asphaltenes and/or impurities in the oil precipitate out of the oil. | 03-31-2011 |
| 20110127196 | Viscous Hydrocarbon Treatment Method by In-situ Asphaltene Inerting - The invention concerns a method for treating viscous hydrocarbon containing asphaltenes, which consists in performing the following steps: precipitating at least part of the asphaltenes by adding into the hydrocarbon an appropriate solvent; adding into the hydrocarbon polymerization products adapted to encapsulate the precipitated asphaltenes to inert same. | 06-02-2011 |
| 20130026074 | PROCESS FOR STABILIZATION OF HEAVY HYDROCARBONS - A process for stabilization of heavy hydrocarbons to reduce sludge formation in storage tanks and/or transportation lines and to enhance the hydrocarbon yield includes mixing a paraffinic or heavy naphtha solvent having carbon numbers in the range 10 to 20 with the feedstock to solvent-flocculate a relatively small, predetermined portion of asphaltenes present in the feedstock, separating and flashing the sediment to recover a light hydrocarbon fraction, flashing the heavy hydrocarbon/solvent phase and recycling the solvent to stabilize the heavy hydrocarbons without significantly affecting the yield of valuable products. | 01-31-2013 |
| 20130026075 | INTEGRATED PROCESS TO PRODUCE ASPHALT AND DESULFURIZED OIL - An integrated process is provided to produce asphalt and desulfurized oil. Sulfur molecules contained in heavy petroleum fractions, including organosulfur molecules, and in certain embodiments organonitrogen molecules are oxidized. The polar oxidized sulfur compounds shift from the oil phase to the asphalt phase. | 01-31-2013 |
| 20130180888 | LOW COMPLEXITY, HIGH YIELD CONVERSION OF HEAVY HYDROCARBONS - A process for producing pipeline-ready or refinery-ready feedstock from heavy hydrocarbons using a high-performance solvent extraction process with high local solvent-to-process fluid ratios yet maintaining low overall solvent-to-process fluid ratios, by first performing mild thermal cracking on the heavy hydrocarbons and then separating asphaltene-rich fractions from a resulting thermally affected fluid so that the high solvent-to-oil ratio portion of the process acts only on those asphaltene-rich fractions, and producing a dry, solid asphaltene as an end-product. | 07-18-2013 |
| 20130240410 | SELECTIVE SEPARATION OF HEAVY COKER GAS OIL - Embodiments of the invention are directed to the improvement of the design of coker systems and processes in order to improve the yields and separation of heavy coker gas oils derived therefrom. | 09-19-2013 |
| 20130264247 | PROCESS OF REDUCING VISCOSITY OF HEAVY CRUDE OIL BY REMOVAL OF ASPHALTENE USING A PRECIPITATING AGENT - A process and system for reducing the viscosity of heavy and extra heavy crude oils, and more particularly to a process for reducing the viscosity of heavy and extra heavy crude oils by means of total or partial oil deasphalting using a precipitating agent in order to obtain an upgraded crude oil of lower viscosity that can be pumped without the use of diluents. The upgrading also includes a reduction in metals and sulfur associated with asphaltene removal. The process consists of relatively simple equipment such as static mixers and stirred tanks and operation temperature is low and pressure is moderate. | 10-10-2013 |
| 20130277275 | METHOD FOR TREATING HEAVY OIL - According to the invention, there is provided a method for treating heavy crude oil (HCO) which includes the steps of combining the HCO with an alkane containing solvent to form an HCO/solvent mixture, sonicating this mixture at audio frequency to precipitate asphaltenes from the HCO/solvent mixture, and separating the precipitated asphaltenes from the HCO/solvent mixture. | 10-24-2013 |
| 20140021101 | Hydrocarbon Viscosity Reduction Method - In accordance with particular descriptions provided herein, certain embodiments of the inventive technology may be described as a hydrocarbon viscosity reduction method that comprises the steps of: treating a hydrocarbon having asphaltenes therein to generate a treated hydrocarbon, wherein said hydrocarbon has a first viscosity; contacting said treated hydrocarbon with a sorbent (whether as a result of pouring or other means); and adsorbing at least a portion of said asphaltenes onto said sorbent, thereby removing said at least a portion of said asphaltenes from said hydrocarbon so as to generate a viscosity reduced hydrocarbon having a second viscosity that is lower than said first viscosity. | 01-23-2014 |
| 20140166542 | PREPARATORY HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC (HPLC) SEPARATION SYSTEM AND TECHNIQUE FOR QUANTITATIVE FRACTIONATION OF TOTAL VACUUM RESID - A method and system for conducting chromatographic analysis of a total vacuum resid to provide quantification of eight classes of compounds (i.e., asphaltenes, saturates, 1-4+ ring aromatics, sulfides, and polars) contained within the total vacuum resid without prior de-asphalting are disclosed. The system is also capable of conducting chromatographic analysis of a vacuum gas oils and de-asphalted oils to provide quantification of seven classes of compounds (i.e., saturates, 1-4+ ring aromatics, sulfides, and polars). The system is also capable of conducting chromatographic analysis of a resid to identity the presence of and provide quantification of asphaltenes. | 06-19-2014 |
| 20140238903 | DEASPHALTING PROCESS FOR PRODUCTION OF FEEDSTOCKS FOR DUAL APPLICATIONS - The invention concerns with improved and more flexible deasphalting process for production of lube oil base stock as well as feed stock for secondary processes depending on requirement from heavy residual hydrocarbon oil containing saturates, aromatics, resins and asphaltenes etc by contacting the oil with a solvent comprising of hydrocarbon containing two to six carbon atoms, preferably LPG having C3-C4 hydrocarbons and mixture thereof at predetermined deasphalting conditions wherein the yield of deasphalted oil including its quality is controlled by varying the deasphalting conditions including the operating temperature. The yield variations of 15 to 60 wt % is achieved by swinging the temperature by about 10-20° C. within the operative temperature range of 70-130° C. keeping the rest of the operating conditions including solvent to feed ratio same. The LPG solvent can be recovered using supercritical mode of operation using technology known in the art and recycled. | 08-28-2014 |
| 20140246357 | SEPARATION OF SOLID ASPHALTENES FROM HEAVY LIQUID HYDROCARBONS USING NOVEL APPARATUS AND PROCESS ("IAS") - An apparatus and process is provided for improved asphaltene separation from heavy hydrocarbon or bitumen with low process complexity through mass transfer using solvent and counter-current flows, with three sections: an upper DAO/solid-asphaltene separation zone, a middle solvent mixing and segregation zone, and a bottom clarification zone. Solvent mixed with heavy hydrocarbon forms a process feed introduced to the process vessel's upper zone and exposed to counter-current solvent removing DAO from solid asphaltene particles in the feed, the particles fall through the middle zone and are mixed with introduced solvent, which introduced solvent segregates DAO-rich solution in the upper zone (for extraction from that zone) from solvent-rich mixtures in the middle mixing and lower clarification zones. Solvent flows and precipitate movement are controlled to optimize mass transfer in process, resulting in high DAO recovery and dry, solid asphaltene product. | 09-04-2014 |
| 20140262958 | PRODUCTION OF NON-CARCINOGENIC BRIGHTSTOCK EXTRACTS - Provided are multiple correlations for relationships between MI value for a brightstock extract and the distillation cut point temperature used for separation of the vacuum resid that is used to form the brightstock extract. Based on these correlations, a BSE having a desired MI value can be formed based on an adjustment of the distillation cut point temperature. A first correlation establishes a relationship between a fractional weight boiling temperature for a vacuum resid fraction and a distillation cut point temperature for separating the vacuum resid fraction from at least one distillate fraction in a feedstock. A second correlation establishes a relationship between a fractional weight boiling temperature for a brightstock extract derived from the vacuum resid fraction, and the fractional weight boiling temperature for the vacuum resid fraction. A third correlation has been established between the fractional weight boiling temperature for the brightstock extract and a mutagenicity index value. | 09-18-2014 |
| 20140262959 | SOLVENT AND ASPHALTENES SEPARATION POST SONICATION - A system and process for solvent and asphaltene separation after sonic treatment of heavy oil feedstocks are disclosed. The separation process involves solvent selection and use of a proprietary sonic reactor which are paramount for the efficient operation of the whole process. The solvent and asphaltene separation system include portable and scalable equipment of design that may allow optimal recover of recyclable solvent, deasphalted oil that may be practically free of solvent and asphaltenes, and high extraction of asphaltenes in the heavy oil feedstocks processed. The system and process may enable economic operation to small to medium oil producers. | 09-18-2014 |
| 20140262960 | SOLVENT RECOVERY SYSTEM BELOW SUPERCRITICAL CONDITIONS - A system and process for solvent recovery after sonic treatment of heavy oil feedstocks is disclosed. The system avoids supercritical variations. The separation process involves solvent selection and use of a proprietary sonic reactor. The solvent recovery process may include pressure variations to solvent materials in order to obtain separation from of solvents from separated asphaltenes or deasphalted oil at high temperatures. The applied pressure variations allow the separation to occur avoiding supecritical states in the solvent materials. | 09-18-2014 |
| 20140262961 | SOLVENT SELECTION PROCESS - A method for solvent selection to be used in asphaltene and de-asphalted oils (DAO) separation process is disclosed. Such process uses solvents and sonication in heavy oil, which is the main feedstock for asphaltenes and DAO's. The method may involve consideration of variety of factors that drive solvent selection. The method disclosed herein may be used as part of an algorithm or as part of a planning sequence for selecting the optimal solvent. Furthermore, the method may include considerations for using of a plurality of solvents to meet requested volume and characteristics of asphaltenes and DAO's. | 09-18-2014 |
| 20140262962 | HYDROCARBONS RECOVERY WITH SONIC TREATMENT - The present disclosure refers to a method for hydrocarbon recovery from a variety of oil spills, using a proprietary sonic treatment process for removal of solids from hydrocarbon substances, to convert contaminated hydrocarbons into de-asphalted oil and heavy oil fuel output. This method may generally require a solvent for removal of material in suspension, which may dissolve contaminated hydrocarbons by using a plurality of alkane containing non polar solvents, which may be filtered through simple separation. The sonic treatment method may reduce the production time of de-asphalted oil and heavy oil fuel, from a range from about six hours up to more than ten hours to about two minutes up to 30 seconds depending on the solvent-feedstock mixture being processed. | 09-18-2014 |
| 20150008159 | SEPARATION OF SELECTED ASPHALTENES FROM A HYDROCARBON-CONTAINING FEEDSTOCK - Toluene-insoluble hydrocarbon-containing compounds are selectively separated from a hydrocarbon-containing feedstock containing at least 5 wt. % n-heptane insoluble hydrocarbon-containing materials, wherein at least 10 wt. % of the n-heptane insoluble hydrocarbon-containing materials are toluene insoluble hydrocarbon-containing materials, by contacting the hydrocarbon-containing feedstock with a porous silica adsorbent having a median pore size diameter of less than 180 Å at a temperature of from 120° C. to 300° C. | 01-08-2015 |
| 20150122703 | FOULING REDUCTION IN SUPERCRITICAL EXTRACTION UNITS - A residual petroleum fraction feed is subjected to a deasphalting process by solvent extraction using a light paraffinic solvent with recovery of the solvent under supercritical process conditions. Fouling is reduced by the injection of an aromatic stream into the DAO-solvent stream from the extractor in order to provide a degree of solvency for residual asphaltenes in the DAO-solvent stream which otherwise would tend to precipitate in the heat exchanger used to create the supercritical conditions for the solvent. The aromatic solvent stream which, by its aromatic character, has solvency properties for the asphaltene components remaining in the DAO-solvent stream, is selected to have a boiling point above the boiling point of the solvent so that it does not contaminate the process solvent when the solvent is recovered in the solvent recovery section of the unit. | 05-07-2015 |
| 20160137928 | Separation Of Asphaltenes - An asphaltenes separation system comprising a flocculant feed system configured to add a flocculant to a production fluid to flocculate asphaltenes in the production fluid, and an asphaltenes separator configured to remove flocculated asphaltenes from the production fluid. | 05-19-2016 |
| 20190144760 | METHODS TO DECONSTRUCT ASPHALTENE IN PETROLEUM PRODUCTS | 05-16-2019 |
| 208310000 | Adsorption | 3 |
| 20100078359 | PROCESS, SYSTEM AND FACILITY FOR DESORBING - One exemplary embodiment can be a process for desorbing one or more polynuclear aromatics from at least one fraction from a hydrocracking zone using an adsorption zone. The adsorption zone can include first and second vessels. Generally, the process includes passing the at least one fraction from an effluent of the hydrocracking zone through the first vessel containing a first activated carbon, and passing a petroleum fraction boiling in the range of about 200-about 400° C. for desorbing the one or more polynuclear aromatics through the second vessel containing a second activated carbon. | 04-01-2010 |
| 20160168333 | ORGANOSILICA MATERIALS AND USES THEREOF | 06-16-2016 |
| 20090152170 | Mixed Matrix Adsorbent for Separation of Gasoline Components - A mixed matrix adsorbent is found for use in the removal of light alkanes from a gasoline stream. The mixed matrix comprises two adsorbents with one adsorbent having an LTA type structure and the other adsorbent having an MFI structure. | 06-18-2009 |
| 208310000 | Zeolite adsorbent | 1 |
| 20100078359 | PROCESS, SYSTEM AND FACILITY FOR DESORBING - One exemplary embodiment can be a process for desorbing one or more polynuclear aromatics from at least one fraction from a hydrocracking zone using an adsorption zone. The adsorption zone can include first and second vessels. Generally, the process includes passing the at least one fraction from an effluent of the hydrocracking zone through the first vessel containing a first activated carbon, and passing a petroleum fraction boiling in the range of about 200-about 400° C. for desorbing the one or more polynuclear aromatics through the second vessel containing a second activated carbon. | 04-01-2010 |
| 20160168333 | ORGANOSILICA MATERIALS AND USES THEREOF | 06-16-2016 |
| 20090152170 | Mixed Matrix Adsorbent for Separation of Gasoline Components - A mixed matrix adsorbent is found for use in the removal of light alkanes from a gasoline stream. The mixed matrix comprises two adsorbents with one adsorbent having an LTA type structure and the other adsorbent having an MFI structure. | 06-18-2009 |
| 208311000 | Liquid extraction with solvents | 19 |
| 20100140144 | METHOD AND APPARATUS FOR REDUCING ADDITIVES IN A HYDROCARBON STREAM - A method for reducing one or more additives in a gaseous hydrocarbon stream ( | 06-10-2010 |
| 208312000 | With blending of separated fractions with each other or with feed | 3 |
| 20090065401 | ATMOSPHERIC FRACTIONATION FOR HYDROCRACKING PROCESS - In an atmospheric fractionator, the number of theoretical stages are increased in the upper light distillate flash zone and in the middle heavy distillate flash zone. The middle distillate pumparound circuit has been eliminated. The reflux to distillate ratio for the light distillate as well as the effluent feed temperature have been substantially increased. As a result, increased yields for middle distillate (e.g. kerosene) and heavy distillate (eg diesel) have been achieved which more than offset the increased energy consumption used for the higher feed temperature In the example of hydrocracking technology, the improved fractionation has benefits in the hydrocracking unit outside of the fractionation unit Increased fractionation efficiency reduces the severity in the hydrocracking unit reactor catalyst and less hydrogen is consumed. The invention can be applied to several other refining technologies besides hydrocracking. | 03-12-2009 |
| 20090255853 | Novel energy efficient and throughput enhancing extractive process for aromatics recovery - An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible. | 10-15-2009 |
| 20120181220 | Feed Mixtures for Extraction Process to Produce Rubber Processing Oil - Deasphalted residual oil (DAO) and the aromatics-rich extract that is derived from DAO have low polycyclic aromatics contents, relatively low aniline points, and high flash points. They form blending stocks that improve properties of mixed feedstocks to consistently produce environmentally qualified rubber processing oil (RPO) by extraction under low solvent-to-oil ratios and moderate extraction temperatures. Distilling a petroleum crude oil under atmospheric pressure generates a bottom residual oil which is then subject to vacuum distillation to yield a bottom residual oil. DAO is produced by removing the asphalt from the vacuum bottom residual oil through extraction with light paraffinic solvent. The extract of DAO is a co-product in the production of the bright stock of the lubricating oil through extraction. The feedstock is mixed with the extract from a petroleum fraction boiling in lube oil range. Liquid-liquid counter-current extraction yields a raffinate stream; removal of solvent therefrom produces the RPO. | 07-19-2012 |
| 208313000 | Extractive distillation | 4 |
| 20100270213 | EXTRACTIVE DISTILLATION PROCESS AND SYSTEM - One exemplary embodiment can be a process for minimizing a solvent in a raffinate stream of an extractive distillation column. The process can include providing sufficient separation in the extractive distillation column between a reflux stream having an effective amount of water and a stream having an effective amount of solvent. Usually, the reflux stream has no more than about 2,000 ppm, by weight, solvent based on the weight of the reflux stream. | 10-28-2010 |
| 20100300939 | Process for Removing a Contaminant from an Aromatic Selective Solvent - The invention is a process and apparatus for removing a contaminant from an aromatic selective solvent. A feed stream comprising an aromatic hydrocarbon and a non-aromatic hydrocarbon is contacted with the aromatic selective solvent in an extractive distillation zone to produce a raffinate stream comprising the non-aromatic hydrocarbon, and a rich solvent stream comprising the aromatic hydrocarbon and the solvent. The rich solvent stream is separated in a second distillation zone to produce an extract stream comprising the aromatic hydrocarbon, and a lean solvent stream comprising the contaminant and the aromatic selective solvent. At least a portion of the lean solvent stream is washed with a non-aromatic hydrocarbon to produce a clean solvent stream, at least a portion of which is passed to at least one of the extractive distillation zone and the second distillation zone. | 12-02-2010 |
| 20120037542 | Novel Methods for Regeneration of Solvents for Extractive Processes - An improved solvent regeneration system for extractive distillation and liquid-liquid extraction processes capable of effectively removing heavy hydrocarbons and polymeric materials that otherwise develop in a closed solvent loop. The improved process employs a light hydrocarbon displacement agent, which is at least partially soluble in the solvent to squeeze the heavy hydrocarbons and polymeric materials out of the solvent, with virtually no additional energy requirement. It has been demonstrated that the light non-aromatic hydrocarbons in the raffinate stream generated from the extractive distillation or the liquid-liquid extractive process for aromatic hydrocarbons recovery can displace not only the heavy non-aromatic hydrocarbons but also the heavy aromatic hydrocarbons from the extractive solvent, especially when the aromatic hydrocarbons in the solvent are in the C | 02-16-2012 |
| 20150008160 | Systems and Processes for Improving Distillate Yield and Quality - Systems and processes for improving quality and yield of one or more distillate products generated in a distillation column are disclosed. The system comprises a feed inlet distributor that reduces the amount of liquid entrained in vapor rising from the feed zone of the distillation column, a wash zone collection apparatus having an improved design for collecting slop wax falling from a liquid/vapor contacting structure provided in the wash zone, a recirculation subsystem for recirculating at least a portion of the collected slop wax to the top of the wash zone for distribution as wash oil, and a control subsystem. The feed inlet distributor ensures a horizontal fluid flow path free of transverse surfaces thereby minimizing atomization of liquid droplets entrained in vapor in the feed stream. | 01-08-2015 |
| 208314000 | Plural stages with different oil miscible solvents | 1 |
| 20140131257 | PREPARATORY HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC (HPLC) SEPARATION TECHNIQUE FOR QUANTITATIVE FRACTIONATION OF HEAVY PETROLEUM STREAMS - A method and system for performing quantitative fractionation of a hydrocarbon sample is disclosed. The method includes introducing the hydrocarbon sample in a separation system having a first separation column and a second separation column. Separate fraction removal steps are performed for the elution of saturates, aromatic ring classes, sulfides, and polars fractions. The method allows to collect the separated fractions and obtain the material balance information of the hydrocarbon sample. The method further includes performing an analysis on the at least one aromatic ring class fraction to identify and quantify an olefins fraction in the hydrocarbon sample. | 05-15-2014 |
| 208321000 | With solvent rehabilitation | 3 |
| 20090200208 | METHOD OF PRODUCING MINERAL OILS BASED ON HYDROCARBON DISTILLATES - A process for producing a purified aliphatic product from an aromatic-containing feedstock is disclosed. | 08-13-2009 |
| 20100282642 | TAILINGS SOLVENT RECOVERY UNIT - A tailings solvent recovery vessel substantially without conventional internals utilizes nozzles for forming very fine solvent-containing hydrocarbon droplets from a solvent-containing tailings feedstream. The hydrocarbon droplets are discrete from water droplets. The hydrocarbon droplets are small enough to result in a large surface area and a desired fall residence time but sufficiently large that they are not entrained with the rising vapour in the vessel. The feedstream is introduced to the vessel with a pressure drop to result in an initial flashing of the solvent from the solvent-containing droplets. Heat from the vessel atmosphere or from steam flowing countercurrent to the falling hydrocarbon droplets is transferred to the falling hydrocarbon droplets resulting in vaporization of any residual solvent therefrom. A substantially solvent-depleted pool is collected in the bottom of the vessel and retained only so long as is required to pump the underflow stream from the vessel. | 11-11-2010 |
| 20130240411 | DEVICE AND METHOD FOR SEPARATING MIXTURES WHICH CONTAIN OIL OR BITUMEN AND ADDITIVES - A device and a method for separating mixtures that contain oil or bitumen and additives. The device and the method are applicable in particular to separating stone chippings and bitumen in excavated asphalt road surfaces. In the case of oil sands and oil shale, a mineral phase can be separated from an oil phase and separation of bitumen and carrier felt can be induced in recycling of bitumen felt, oil binder and oil. The individual components of the mixture are separated from one another using a solvent, wherein the solvent takes up the oil or bitumen. The oil and bitumen are subsequently separated from the solvent so that the solvent can be reused. | 09-19-2013 |
| 208322000 | Organic solvent containing | 6 |
| 208323000 | With added solvent or solvent modifier | 1 |
| 208324000 | Inorganic | 1 |
| 20140319026 | SHORT CHAIN ALKYLAMINE ALKOXYLATE COMPOSITIONS - Provided herein are, inter alia, compositions including a surfactant and a novel compound useful in enhanced oil recovery. The compositions and methods provided herein may be particularly useful for oil recovery under a broad range of reservoir conditions (e.g. high to low temperatures, high to low salinity, highly viscous oils). | 10-30-2014 |
| 208325000 | Heterocyclic | 4 |
| 208326000 | Hetero-N-containing | 4 |
| 20100243533 | EXTRACTION OF AROMATICS FROM HYDROCARBON OIL USING N-METHYL 2-PYRROLIDONE AND CO-SOLVENT - The present invention provides a process for extraction of aromatic material from hydrocarbon oil by using a solvent mixture comprising N-Methyl-2-Pyrrolidone (NMP), at least one co-solvent and optionally water, to obtain a raffinate. The process of the present invention lowers operating cost as the cost of the co-solvent employed is lower than that of neat NMP. Another feature of the present invention is that it produces the same quality raffinate as those of neat NMP-water measured by the refractive index but produces higher yield of raffinate at same feed to solvent mixture ratio. | 09-30-2010 |
| 20150375139 | An Extraction Column and Process for Use Thereof - A counter-current liquid-liquid extraction column ( | 12-31-2015 |
| 20160075952 | METHOD FOR SEPARATING AROMATIC COMPOUNDS CONTAINED IN NAPHTHA - The present invention relates to a method for separating aromatic compounds contained in naphtha which includes an extraction step of contacting specific ionic liquids and naphtha and a step of separating the aromatic compounds from naphtha contacted with the ionic liquids. | 03-17-2016 |
| 20180023047 | FLOWABLE MICROBIAL OIL | 01-25-2018 |
| 208337000 | Hydrocarbon | 1 |
| 20090078612 | EXTRACTION OF HYDROCARBONS FROM HYDROCARBON-CONTAINING MATERIALS - Solvents and methods are provided for extracting a hydrocarbon fraction from a solid, semi-solid, liquid or viscous liquid hydrocarbon-containing material. | 03-26-2009 |
| 208339000 | Liquid-liquid contacting | 1 |
| 20120168352 | SYSTEMS AND METHODS FOR PROCESSING HYDROCARBON FEEDSTOCKS - Systems and methods for processing a hydrocarbon feedstock are provided. The method can include removing a portion of one or more impurities from a non-phenolic sour water to produce a treated sour water and a waste byproduct. The non-phenolic sour water can have a total concentration of impurities ranging from about 100 ppmw to about 125,000 ppmw. The treated sour water can have a total concentration of impurities ranging from about 1 ppmw to about 4,000 ppmw. The treated sour water can be heated to produce steam. A hydrocarbon feedstock can be contacted with the steam at conditions sufficient to separate the hydrocarbon feedstock into at least a first hydrocarbon product and a second hydrocarbon product. | 07-05-2012 |
| 208340000 | Recovery of mineral oil from natural or converted gases | 5 |
| 20100258476 | APPARATUS AND METHODS FOR THE RECOVERY OF HYDROCARBONACEOUS AND ADDITIONAL PRODUCTS FROM OIL SHALE AND SANDS VIA MULTI-STAGE CONDENSATION - A system for recovering products from a gas stream comprises a cooled chamber having an inlet that feeds the gas stream to a plurality of sequential conduit loops within the chamber. A critical orifice follows each loop, and each loop includes an output port. Based upon the physical characteristics of each loop, the sizing of the critical orifice following the loop, and the temperature within the chamber, different products are condensed from the gas stream through the output ports. The system may be configured to condense hydrocarbonaceous products such as ethane, propane, butane or methane, as well as fundamental products such as carbon dioxide, nitrogen or hydrogen. Gaseous products may be stored in gas or liquid form or vented to atmosphere depending upon amount, purity, and so forth. | 10-14-2010 |
| 20130341248 | Efficient Method for Improved Coker Gas Oil Quality - An efficient delayed coking process improvement for producing heavy coker gas oil of sufficient quality to be used as hydrocracker feedstock. | 12-26-2013 |
| 208341000 | By absorption and vaporization | 3 |
| 208342000 | With fractional condensation prior to absorption | 1 |
| 20150053590 | METHOD AND DEVICE FOR IMPROVING EFFICIENCY OF SPONGE OIL ABSORPTION - A method for improving efficiency of sponge absorption includes providing cold flash drum liquid to an inlet of a cold stripper to produce a cold stripper net overhead vapor stream rich in liquid petroleum gas, and separately providing hot flash drum liquid to an inlet of a hot stripper to produce a hot stripper net overhead vapor stream rich in hydrogen. The cold stripper net overhead vapor stream and the hot stripper net overhead vapor stream are separately routed to a sponge absorber to recover a liquid petroleum gas output stream using sponge oil. In particular, the cold stripper net overhead vapor stream and the hot stripper net overhead vapor stream are separately routed to the sponge absorber at different tray locations | 02-26-2015 |
| 208343000 | Indirect heat exchange between lean and rich absorbent | 1 |
| 20080314801 | Process for Enhancement of the Selectivity of Physically Acting Solvents Used for the Absorption of Gas Components from Industrial Gases - The invention relates to a method for recovering absorbed hydrocarbon components while absorbing acid gases from technical gases, as for example a natural gas, by means of physically active absorption agents, wherein the inventive method consists in increasing the pressure of a loaded absorption agent extracted from an adsorption device, in adding said loaded absorption agent to the top of a rectification column which consist of a lower feeding stove and of one or several lateral stoves operating at a pressure slightly greater than the absorption column pressure, in adjusting an equilibrium is said rectification column in such a way that the acid gas concentration in the absorbent agent increases in the direction away from the bottom of the column and the hydrocarbon concentration decreases in said direction, in extracting a heated hydrocarbon-poor and acid gas component-rich absorption agent from the bottom of the column and in transferring said agent to an acid gas desorption device, in extracting a hydrocarbon-poor and acid gas component-rich recycling gas from the top of the rectification column, in cooling said recycling gas in a recycling gas cooler to a temperature of a service gas directed in the absorption device and in transferring said recycling gas directly to the absorption device or in mixing it with the service gas. | 12-25-2008 |
| 208344000 | Plural absorption stages | 1 |
| 20140353215 | Process and Apparatus for Recovering LPG from PSA Tail Gas - A process for recovering liquefied petroleum gas from tail gas includes recovering a tail gas stream from a pressure swing adsorption zone and contacting the tail gas stream with a sponge liquid such as an unstabilized reformate liquid stream in order to recover C | 12-04-2014 |
| 208347000 | Distillation | 25 |
| 20120298560 | PROCESS FOR PROVIDING ONE OR MORE STREAMS - One exemplary embodiment can be a process for separating a plurality of naphtha components. The process can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The process may provide at least four product streams. | 11-29-2012 |
| 208348000 | With nonvapor compound added prior to or during vaporization | 3 |
| 20100116718 | NAPHTHENIC ACID CORROSION INHIBITION USING NEW SYNERGETIC COMBINATION OF PHOSPHORUS COMPOUNDS - The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The three combination compositions are formed by three mixtures separately, with one mixture obtained by mixing compound A, which is obtained by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur with compound B such as trialkyl phosphate and second mixture obtained by mixing compound A with compound C such as phosphite like di-isodecyl phenyl phosphite, and third mixture obtained by mixing compound A with compound D such as a phosphonate, wherein each of these three mixtures independently provide high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries. | 05-13-2010 |
| 20130299391 | COMPOUNDS AND METHODS FOR INHIBITING CORROSION IN HYDROCARBON PROCESSING UNITS - Treatment compositions for neutralizing acidic species and reducing hydrochloride and amine salts in a fluid hydrocarbon stream are disclosed. The treatment compositions may comprise at least one amine with a salt precipitation potential index of equal to or less than about 1.0. Methods for neutralizing acidic species and reducing deposits of hydrochloride and amine salts in a hydrocarbon refining process are also disclosed. The methods may comprise providing a fluid hydrocarbon stream and adding a treatment composition to the fluid hydrocarbon stream. The treatment compositions used may have a salt precipitation potential index of equal to or less than about 1.0 and comprise either water-soluble or oil-soluble amines. | 11-14-2013 |
| 20130334104 | DISTILLING A CHEMICAL MIXTURE USING AN ELECTROMAGNETIC RADIATION-ABSORBING COMPLEX FOR HEATING - A method of distilling a chemical mixture, the method including receiving, in a vessel comprising a complex, the chemical mixture comprising a plurality of fluid elements, applying electromagnetic (EM) radiation to the complex, wherein the complex absorbs the EM radiation to generate heat at a first temperature, transforming, using the heat generated by the complex, a first fluid element of the plurality of fluid elements of the chemical mixture to a first vapor element, and extracting the first vapor element from the vessel, where the complex is at least one selected from a group consisting of copper nanoparticles, copper oxide nanoparticles, nanoshells, nanorods, carbon moieties, encapsulated nanoshells, encapsulated nanoparticles, and branched nanostructures. | 12-19-2013 |
| 208349000 | With nonvaporization treatment of liquid condensate or residue | 2 |
| 20120074043 | SEPARATION OF AROMATICS WITH PERVAPORATION MEMBRANE - Methods and apparatus relate to separating and removing aromatic compounds from a hydrocarbon stream. Splitting of the hydrocarbon stream into constituents as desired relies on a membrane and distillation columns that supply feed into the membrane and receive retentate and permeate streams output from the membrane. Configurations employing the membrane and the distillation columns enable benzene recovery and facilitate efficient separation. | 03-29-2012 |
| 20140197075 | FIELD ENHANCED SEPARATION OF HYDROCARBON FRACTIONS - Systems and methods are provided for using field enhanced separations to produce multiple fractions from a petroleum input. A liquid thermal diffusion and/or electric field separation is used to produce the fractions. The fractions can then be used to form multiple outputs that share a first feature while being different with regard to a second feature. For example, a first fraction from the plurality of fractions can have a desired value for a first property such as viscosity index. Two or more additional fractions from the plurality of fractions can then be blended together to make a blended fraction or output. The blended fraction can have a value for the first property that is substantially similar to the value for the first fraction. However, for a second property, the first fraction and the blended fraction can have distinct values. As a result, multiple output fractions can be formed that share a first feature but differ in a second feature. | 07-17-2014 |
| 208350000 | Rectification | 4 |
| 20150041367 | METHOD FOR PROCESSING OF LIQUID HYDROCARBON RAW MATERIALS. - The invention pertains to the field of petroleum processing and may find application in petroleum and petrochemical industries, in field of fuel power engineering. Method for processing of liquid hydrocarbon raw materials includes preliminary pre -treatment of raw materials flow and further processing with fractionation. The pretreatment is performed by means of forming of the primary flow with characteristics of a straight tubular laminar flow, whereupon the raw materials flow is forced into directed progressive rotary motion along vortex trajectory preserving laminarity, for this purpose it is directed to a spiral tubing while the primary flow the primary flow, is forced to move at a velocity the maximal value of which is on the boundary of vortex axile zone satisfies the conditions of achievement by the Reynolds number of critical values for tubular flow of liquid. | 02-12-2015 |
| 208354000 | Plural or combined with additional distillation | 2 |
| 20140353216 | SEPARATION OF HYDROCARBON FAMILIES OR OF INDIVIDUAL COMPONENTS BY CONSECUTIVE EXTRACTIVE DISTILLATIONS PERFORMED IN A SINGLE COLUMN - A column for consecutive extractive distillations, in particular of crude hydrocarbon mixes comprising aromatic, naphthene and paraffin hydrocarbons. The invention also relates to methods for separating and recovering the components of a crude hydrocarbon mix comprising aromatic, naphthene and paraffin hydrocarbons by consecutive extractive distillations provided by means of the column for consecutive extractive distillations, to which the invention also relates. | 12-04-2014 |
| 20160160130 | Integrated Vacuum Distillate Recovery Process - A system for recovering diesel products from a feed stream comprises an atmospheric crude unit, a vacuum crude unit, and a vacuum distillate recovery unit. The atmospheric crude unit comprises a crude feed inlet line, a diesel product outlet line, an atmospheric gas oil product outlet line, and a residual product outlet line. The vacuum crude unit comprises a residual product inlet line in fluid communication with the residual product outlet line from the atmospheric crude unit, a light vacuum gas oil product outlet line, and an overhead vapor outlet line. The vacuum distillate recovery unit comprises a gas oil inlet line, an overhead product line, and a second diesel product outlet line. The gas oil inlet line is in fluid communication with the atmospheric gas oil product outlet line from the atmospheric crude unit and the light vacuum gas oil product outlet line from the vacuum crude unit. | 06-09-2016 |
| 208357000 | Vacuum or pressure | 1 |
| 20130220889 | DISTILLATION TOWER FOR IMPROVING YIELD OF PETROLEUM HYDROCARBON DISTILLATE AND FEEDING METHOD THEREOF - A method for improving yield of petroleum hydrocarbon distillate in a distillation tower ( | 08-29-2013 |
| 208359000 | Spraying | 1 |
| 20150014219 | METHOD AND APPARATUS FOR SEPARATING EVAPORATABLE COMPONENTS FROM A FLUID - A method and an apparatus for separating evaporatable components from a heated fluid ( | 01-15-2015 |
| 208361000 | Flash vaporization | 2 |
| 20150122704 | METHOD FOR INCREASING GAS OIL YIELD AND ENERGY EFFICIENCY IN CRUDE OIL DISTILLATION - A method for significant increase in gas oil yield and energy efficiency in crude oil distillation is provided. The present invention relates to a method of separating the components of crude oil. This method utilizes the innovative and novel application of lighter fraction of crude through its superheating and its injection in the stripping section consisting of bottom to flash zone of main distillation column. Method also illustrates the innovative utilization of water in crude distillation unit to eliminate the bottom striping steam and for significant energy saving. | 05-07-2015 |
| 20160160135 | PROCESS FOR IMPROVED VACUUM SEPARATIONS WITH HIGH VAPORIZATION - Methods and apparatus for vacuum separation are described. The method includes heating a feed comprising a mixture of light and heavy hydrocarbons in a first heating zone. The heated feed is flashed in a flash drum to form a liquid stream and a vapor stream. The liquid stream is heated in a second heating zone. The heated liquid stream is introduced into a vacuum distillation column through a first inlet. The vapor stream from the flash drum is introduced into the vacuum distillation column through a second inlet located above the first inlet, the vapor stream of the flash drum being in fluid communication with the vacuum distillation column. | 06-09-2016 |
| 208362000 | With added gas or vapor | 5 |
| 20090008296 | METHOD FOR STABILIZING HEATING OIL OR DIESEL OIL, PARTICULARLY HEATING OIL OR DIESEL OIL FROM THE DEPOLYMERIZATION OF HYDROCARBON-CONTAINING RESIDUES, OR PYROLYSIS OIL - In order to keep diesel or heating oil obtained by fractional distillation, in particular after depolymerization of residues, or pyrolysis oil that was obtained by pyrolysis of rubber or organic substances, permanently clear and light, first, the process of discoloration (darkening) is allowed and then a second distillation is carried out, through which a permanently clear and light heating, diesel or heavy oil is obtained. | 01-08-2009 |
| 208363000 | Steam | 4 |
| 20100224536 | PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN - One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser. | 09-09-2010 |
| 20120085682 | PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN - One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser. | 04-12-2012 |
| 20140374322 | MULTIPLE PREFLASH AND EXCHANGER (MPEX) NETWORK SYSTEM FOR CRUDE AND VACUUM UNITS - Plants and methods are presented for crude feed pre-processing before feeding the crude feed into a crude unit or vacuum unit. Pre-processing is preferably achieved with a combination of a preflash drum and a preflash column that allows for high-temperature treatment of the liquids and separate vapor phase handling, which advantageously enables retrofitting existing plants to accommodate lighter crude feeds. | 12-25-2014 |
| 20150090640 | STEAM GENERATOR ADDITIVES TO MINIMIZE FOULING AND CORROSION IN CRUDE TOWERS - Dual action amines provide corrosion protection from corrosion and fouling for a steam generator system and distillation tower of a petroleum or petrochemical refinery. These amines are chosen to provide protection for the steam condensate section of the boiler while simultaneously minimizing amine salt fouling and corrosion problems in the crude distillation tower and overhead condensing system of crude distillation units. The distribution ratio of the dual action amine should be about 4.0 or less, the amine pKa should be in the range of about 7.0 to about 11.0, and the amine HCl salt volatility index should be about 2.5 or less. | 04-02-2015 |
| 208364000 | Plural stages of vaporization | 3 |
| 20140262963 | PROCESS AND APPARATUS FOR RECOVERING AND BLENDING HYDROPROCESSED HYDROCARBONS AND COMPOSITION - A process and apparatus provides for blending a heavy naphtha stream with a diesel stream to increase the yield of diesel. The diesel stream is recovered separately from a kerosene stream to leave the kerosene stream undiminished. The blended diesel provides a valuable composition. | 09-18-2014 |
| 20150076036 | METHOD AND SYSTEM FOR CONTROLLING A HYDROCRACKER AND FRACTIONATOR - A method and system for controlling a hydrocracker and fractionator reaction loop is disclosed. The method and system utilizes a sidedraw tray within the fractionator distillation zone upon which liquid is collected. This liquid is withdrawn as a sidedraw stream. The withdrawal of the liquid from the sidedraw tray is controlled based on the level of liquid on the sidedraw tray rather than at a set or determined flow rate. The sidedraw stream is separated into a first stream and a product stream. Unlike other processes where the flow rate of the product stream is set and the internal reflux flow rate varies, the method involves fixing the flow rate of the first stream that is returned to the distillation zone of the fractionators with the flow rate of the product stream being set so as to control the liquid level on the sidedraw tray. | 03-19-2015 |
| 20160115392 | PROCESS FOR INCREASING A DIESEL RECOVERY FROM A FRACTIONATION COLUMN - A process for recovering diesel from fractionation column bottoms stream. The bottoms stream from the fractionation column is passed to a vacuum column. The vacuum column includes various packed sections which separate the diesel in the fractionation column bottoms from the other components. The diesel will rise as though the lower sections of the vacuum column, and most will condense in the upper section of the vacuum column. A recovered diesel from the vacuum column can be combined with the diesel recovered from the fractionation column. A venturi jet nozzle, such as a liquid jet eductor, can be used with a sidecut pumparound stream from the fractionation column as a motive fluid to achieve the desired operating pressure of the vacuum column. | 04-28-2016 |
| 208366000 | Vacuum or pressure | 3 |
| 20090101546 | Distillation tower construction and operation - A combination of differently sized structured packings in the wash zone of distillation towers is provides advantages at high vapor rates. The use of a large crimp structured packing below a smaller crimp size structured packing is advantageous for vacuum crude unit service where fouling resistance is desirable and liquid entrainment into the wash zone is a problem at high vapor rates. The tower may be operated at high vapor flux rates or C 0.4 ft/sec or higher (0.12 m/sec). An unexpected characteristic of the combinations is that the entrainment increases only slowly with increasing vapor flux rate up to Cs values of at least 0.55 ft/sec (0.17 m.sec), as compared to other packings such as random packing, grid packing and combinations of grid packing with structured packing which allow entrainment to increase sharply at high vapor rates. | 04-23-2009 |
| 20140110309 | MULTI-VARIABLE PREDICTIVE CONTROLLER - A multi-variable predictive controller is used to separate a multi-phase fluid on an offshore platform, thereby reducing condensable material in the gas product stream. A separation vessel containing a multi-phase fluid is provided, and pressure and temperature associated with the separation vessel are monitored. A Reid Vapor Pressure is calculated for the separation vessel based on the pressure and the temperature associated with the separation vessel. The multi-variable predictive controller actively controls the pressure and the temperature associated with the separation vessel such that the calculated Reid Vapor Pressure for the separation vessel is maintained within a predetermined amount of a reference Reid Vapor Pressure. | 04-24-2014 |
| 20160145498 | DETERMINING MODIFIED TAN-IR IN CRUDE OIL - A method for determining a TAN-IR for naphthenic acids in crude oil or crude oil fraction may include determining an IR spectrum of a sample of the crude oil or crude oil fraction. The method may include determining an IR spectrum of a neutralized sample of the crude oil or crude oil fraction. The method may include utilizing the IR spectra of the sample and the neutralized sample to determine a modified TAN-IR. | 05-26-2016 |
| 208368000 | Condensatin by direct heat exchange | 1 |
| 20090194461 | METHOD FOR TREATING A HYDROCARBON STREAM - The present invention relates to a method for treating a natural gas feed stream, containing >10 mole % CO | 08-06-2009 |
