| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 208039000 | ASPHALTS, TARS, PITCHES AND RESINS; MAKING, TREATING AND RECOVERY | 48 |
| 20090321309 | Process for upgrading hydrocarbon feedstocks using solid adsorbent and membrane separation of treated product stream - A process for upgrading crude oil fractions or other hydrocarbon oil feedstreams boiling in the range of 36° to 520° C., and preferably naphtha and gas oil fractions boiling in the range of 36° to 400° C., employs a solid adsorption material to lower sulfur and nitrogen content by contacting the hydrocarbon oil, and optionally a viscosity-reducing solvent, with one or more solid adsorbents such as silica gel or silica, silica alumina, alumina, attapulgus clay and activated carbon in a mixing vessel for a predetermined period of time; passing the resulting slurry to a membrane separation zone, optionally preceded by a primary filtration step (i.e., single stage or multiple stages), to separate the solid adsorption material with the adsorbed sulfur and nitrogen compounds from the treated oil; recovering the upgraded hydrocarbon product having a significantly reduced nitrogen and sulfur content as the membrane permeate; mixing the solid adsorbent material with one or a combination of aromatic solvents such as toluene, benzene, the xylenes and tetrahydrofuran to remove and stabilize the sulfur and nitrogen compounds; transferring the solvent to a fractionation tower to recover the solvent, which can be recycled for use in the process; and recovering the hydrocarbons that are rich in sulfur and nitrogen for processing in a relatively small high-pressure hydrotreating unit or transferring them to a fuel oil pool for blending. | 12-31-2009 |
| 20100006474 | BITUMINOUS FROTH INLINE STEAM INJECTION PROCESSING - An inline bitumen froth steam heater system including steam injection and static mixing devices is provided. The system heats and de-aerates input bitumen froth without creating downstream processing problems with the bitumen froth such as emulsification or live steam entrainment. The system is a multistage unit that injects and thoroughly mixes steam with bitumen resulting in output bitumen material having temperature of about 190° F. The system conditions a superheated steam supply to obtain saturated steam at about 300° F. The saturated steam is contacted with bitumen froth flow and mixed in a static mixer stage. The static mixers provide surface area and rotating action that allows the injected steam to condense and transfer its heat to the bitumen froth. The mixing action and increase in temperature of the bitumen froth results in reduction in bitumen viscosity and allows the release of entrapped air from the bitumen froth. | 01-14-2010 |
| 20100051508 | ASPHALTENSE-STABILISING MOLECULES HAVING A TETRAPYRROLIC RING - Use of a biodegradable molecule or a mixture of biodegradable molecules having tetrapyrrolic rings, as stabilizers for the asphaltenes present in crude oil and crude oil derivatives. | 03-04-2010 |
| 20100300931 | METHOD FOR THE WELL-HEAD TREATMENT OF HEAVY AND EXTRA-HEAVY CRUDES IN ORDER TO IMPROVE THE TRANSPORT CONDITIONS THEREOF - The invention relates to a method for the dehydration of, and in-line removal of asphaltenes from, heavy and extra-heavy crudes. The method is performed at the well head at pressures of between 414 and 689 KPa and temperatures of between 60 and 100° C. and includes two phases, namely a dehydration phase and a deasphalting phase. The first phase includes the addition of solvent, removal of free water, heating, addition of emulsion breakers and settling for removal of emulsified water. The asphaltenes are extracted in the second phase. Said phase comprises the use of low-force in-line static mixers and contactors having a specific design and a sedimentation device with specific internal arrangements for separation. The recovered solvent is recirculated into the method, the improved crude is separated and the asphaltenes are used as fuel for cogeneration which supplies the energy requirements for production and the improvement method. | 12-02-2010 |
| 20110180454 | METHODS FOR PREPARING SOLID HYDROCARBONS FOR CRACKING - A method of preparing solid hydrocarbons for cracking. The method includes preparing a mixture including solid hydrocarbon material dissolved in a solvent. After optionally separating non-dissolved solids from the mixture, the mixture is injected into a nozzle reactor for upgrading of the hydrocarbon component of the mixture. | 07-28-2011 |
| 208040000 | By chemical conversion of oil | 6 |
| 20100170827 | Selective Cracking and Coking of Undesirable Components in Coker Recycle and Gas Oils - Undesirable gas oil components are selectively cracked or coked in a coking vessel by injecting an additive into the vapors of traditional coking processes in the coking vessel prior to fractionation. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack or coke these undesirable components that typically have a high propensity to coke. Exemplary embodiments of the present invention also provide methods to control the (1) coke crystalline structure and (2) the quantity and quality of volatile combustible materials (VCMs) in the resulting coke. That is, by varying the quantity and quality of the catalyst, seeding agent, and/or excess reactant the process may affect the quality and quantity of the coke produced, particularly with respect to the crystalline structure (or morphology) of the coke and the quantity & quality of the VCMs in the coke. | 07-08-2010 |
| 20100264062 | NOZZLE REACTOR AND METHOD OF USE - Embodiments of a nozzle reactor of the type useable to inject a first material feed stock and a second material feed stock to cause interaction between the first material feed stock and second material feed stock are described herein. According to some embodiments, the nozzle reactor may crack residual oil produced by other processing units in a refinery process. Furthermore, nozzle reactors may replace traditional processing units of a refinery process, such as cokers, hydrocrackers and deasphalting units. | 10-21-2010 |
| 20110036751 | APPARATUS AND METHOD FOR SUPERHEATED VAPOR CONTACTING AND VAPORIZATION OF FEEDSTOCKS CONTAINING HIGH BOILING POINT AND UNVAPORIZABLE FOULANTS IN AN OLEFINS FURNACE - A contactor/separator is formed from a vessel; an inlet for receiving a vapor/liquid mixture; an inlet for receiving a superheated vapor; a hub located within the vessel, the hub including a plurality of vanes for imparting a centrifugal motion to the vapor/liquid mixture or the superheated vapor; an outlet in a bottom of the vessel for removing liquid; and an outlet for removing vapor from the vessel. A method is also provided for heating and separating liquid and vapor from a hydrocarbon feedstock comprising introducing a hydrocarbon feedstock into a contactor/separator: introducing a superheated vapor into the contactor/separator such that it contacts and vaporizes a portion of the feedstock within the contactor/separator; separating unvaporized feedstock from vaporized feedstock in the contactor/separator; removing the vaporized feedstock and the superheated vapor through a first outlet; and removing the unvaporized feedstock through a second outlet. | 02-17-2011 |
| 20110094937 | Residuum Oil Supercritical Extraction Process - Systems and methods for processing one or more hydrocarbons are provided. A hydrocarbon can be selectively separated to provide one or more finished products and an asphaltenic hydrocarbon using a pretreatment process. The asphaltenic hydrocarbon can be selectively separated to provide a deasphalted oil and one or more asphaltenes. At least a portion of the deasphalted oil can be converted to one or more first products using a first post-treatment process. At least a portion of the one or more asphaltenes can be converted to one or more second products using a second post-treatment process. | 04-28-2011 |
| 20110303580 | SLURRY HYDROCRACKING APPARATUS OR PROCESS - One exemplary embodiment can include a slurry hydrocracking process. The process can include combining one or more hydrocarbons and a slurry hydrocracking catalyst as a feed to a slurry hydrocracking reaction zone, fractionating an effluent from the slurry hydrocracking reaction zone, separating the pitch from at least a portion of the slurry hydrocracking catalyst, and recycling the suspension to the slurry hydrocracking reaction zone. The slurry hydrocracking catalyst may include a support. Fractionating the effluent may provide a light vacuum gas oil, a heavy vacuum gas oil, and a mixture comprising a pitch and the slurry hydrocracking catalyst. Generally, the separated slurry hydrocracking catalyst is comprised in a suspension. | 12-15-2011 |
| 20150076031 | Process for Producing Mesophase Pitch by Hydrogenation of High-temperature Coal Tar - A process for producing mesophase pitch from high-temperature coal tar comprises: removing salts and quinoline insoluble fraction from a high-temperature coal tar to obtain a decant oil; using the decant oil as a hydrogenation feedstock, or pre-distilling the decant oil to obtain a residue with a boiling point higher than 230 and formulating the residue into a hydrogenation feedstock; catalytic hydrorefining the hydrogenation feedstock to obtain a hydrofined oil; distilling the hydrofined oil to obtain hydrogenated pitch; and subjecting the hydrogenated pitch to the thermal polymerization to obtain the mesophase pitch. The process has features such as an easily controllable degree of hydrogenation, complete removal of impurities, good raw material flowability, not tending to form the carbon deposition and the coking during the process, and not tending to jam the reactor. The product has a high content of mesophase pitch, a low softening point and a low impurity content. | 03-19-2015 |
| 208041000 | By distillation | 5 |
| 20080210597 | High Quality Asphalt Containing Pitch and Method of Preparing the Same - A high quality asphalt containing pitch is generated as a by-product in a solvent deasphalting process and a method of preparing the same. The pitch is obtained by subjecting a mixture comprising a first vacuum residue and a first petroleum distillate, which is lighter than the vacuum residue and has high amounts of aromatic and resin, to solvent deasphalting. The operation conditions of the solvent deasphalting process are appropriately controlled, such that aromatic and resin components contained in the atmospheric residue and vacuum residue can be distributed to the pitch, and as well, a saturate can be removed. | 09-04-2008 |
| 20100059411 | FLASH PROCESSING OF ASPHALTIC RESIDUAL OIL - A method to upgrade virgin and partially hydrogenated asphaltic residual oils by utilizing hot, high velocity combustion gas jets to rapidly atomize and heat the residual oil, maintaining the reactant temperature required to achieve the desired residual oil conversion with the minimum practical residence time, rapidly separating vapor and liquid reactants, and rapidly cooling the vapor and liquid products. The minimum required temperature and practical residence time are used for the production of deasphalted oil and asphaltene products with minimum degradation due to thermal cracking. The maximum conversion of residual oil may be substantially increased by combining a portion of the heavy oil product with the residual oil feed and partially hydrogenating this mixture. | 03-11-2010 |
| 20100078356 | PROCESS FOR THE DISTILLATION OF DECANTED OILS FOR THE PRODUCTION OF PETROLEUM PITCHES - This invention describes a process for the distillation of decanted oil to improve the efficiency of the production of pitches having excellent physical and chemical properties through the development of a distillation process which basically comprises the introduction of a stage of condensation of light volatile compounds derived from distillation of the decanted oil, causing these light compounds to be recycled to the hot zone of the still and react with the raw material acting as a solvent phase which has a lower viscosity than the reaction system, within a particular temperature range and for a particular time. | 04-01-2010 |
| 20120091032 | Flash Processing A Solvent Deasphalting Feed - Systems and methods for deasphalting a hydrocarbon are provided. A hydrocarbon can be heated to a first temperature and pressurized to a first pressure. The pressurized hydrocarbon can be depressurized to separate at least a portion of the hydrocarbon to provide a vaporized hydrocarbon mixture and a residual hydrocarbon that can include asphaltenes. The residual hydrocarbon can be mixed with a solvent to provide a first mixture. The first mixture can be heated to a second temperature. The asphaltenes can be separated from the first mixture to provide a first product and a second product. The first product can include a deasphalted oil and at least a portion of the solvent. The second product can include the asphaltenes and the remaining portion of the solvent. | 04-19-2012 |
| 20140174981 | SYNERGISTIC ASPHALT CRUDE COMPOSITIONS - Methods are provided for forming an asphalt fraction corresponding to a blend of asphalts, the asphalt fraction having at least one property that is unexpectedly better than the expected property value based on the individual asphalts used in the blend. The unexpectedly beneficial blends of asphalts are formed in part by including an effective amount of a Napo crude oil or crude fraction in the feed used to form the asphalt fraction. For some asphalt blends, including an effective amount of a Napo crude in the feed can allow for production of an asphalt with a low temperature performance grade that is lower than the predicted value by at least 0.5° C., such as at least 0.75° C. or at least 1.0° C. | 06-26-2014 |
| 208044000 | Chemical modification of asphalt, tar, pitch or resin | 21 |
| 20080251418 | Upgrading of petroleum resid, bitumen, shale oil, and other heavy oils by the separation of asphaltenes and/or resins therefrom by electrophilic aromatic substitution - Heavy, high molecular weight multi ring aromatics present in petroleum resid, bitumen and heavy oils in the form of asphaltenes, heavy resids and polycyclic hetero (N) aromatic molecules are separated from the petroleum resid, bitumen and/or heavy oils, by the process comprising electrophilic aromatic substitution of polar groups onto the heavy high molecular weight multi-ring aromatics thereby rendering them insoluble in and facilitating their separation and recovery from the petroleum resid, bitumen and/or heavy oil. | 10-16-2008 |
| 20090038990 | CATALYST USED FOR CONVERTING COAL TAR TO DIESEL OIL, ITS PREPARATION METHOD AND USE THEREOF - The present invention relates to a catalyst used for converting coal tar to diesel, the preparation method and use thereof The catalyst has a compound of iodine, an inorganic oxide matrix and the compound dispersed therein; or an inorganic oxide matrix and the compound dispersed therein together with a crystalline aluminosilicate zeolite, and relates to a method of coal tar converse to diesel in which at least one of the catalysts are used by dispersing an iodine compound in an inorganic oxide matrix. | 02-12-2009 |
| 20090078610 | METHOD OF TURNING VEGETABLE ASPHALT INTO SUPERIOR BOILER FUEL - This invention, which involves a method of turning vegetable asphalt into high-quality boiler fuel, belongs to the field of natural asphalt processing technology. It is intended for acid desaponification of vegetable asphalt at 50 to 100° C., then water washing is performed removing impurities and salt; following this, the asphalt is allowed to stand to separate into layers and the aqueous phase is removed. Neutralization to pH=7 to 8 is then performed using alkali and, after another water wash is performed, the asphalt is allowed to stand to separate into layers and the aqueous phase is separated from it. Then the substance obtained thereby is dried yielding the product. Vegetable asphalt that has undergone modification has the advantages of having low viscosity, generating a small amount of ash, having low sulfur content and a low flash point, and of not being prone to coking when it is burned, and the like, and ensures boiler heat efficiency and also prolongs boiler's useful life and reduces pollution. | 03-26-2009 |
| 20090272671 | Process and Apparatus for Using Steam Cracked Tar as Steam Cracker Feed - A process and apparatus are provided for steam cracking heavy feeds, including steam cracked tars. The invention heats a steam cracked tar feed to provide a depolymerized steam cracked tar containing lower boiling molecules than the steam cracked tar feed, hydrogenates the depolymerized steam cracked tar using a hydrogenating catalyst, e.g., a downward flow fixed bed hydrotreater, to provide a hydrogenated steam cracked tar. At least a portion of the hydrogenated steam cracked tar is steam cracked in a steam cracking furnace comprising a convection zone and a radiant zone. | 11-05-2009 |
| 20090294325 | Reduced Puffing Needle Coke From Coal Tar - A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. | 12-03-2009 |
| 20090294326 | Reduced Puffing Needle Coke From Coal Tar Distillate - A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures. | 12-03-2009 |
| 20090308787 | PROCESS FOR CONVERTING CARBON-BASED ENERGY CARRIER MATERIAL - A process is disclosed process for converting a solid or highly viscous carbon-based energy carrier material to liquid and gaseous reaction products, said process comprising the steps of: a) contacting the carbon-based energy carrier material with a particulate catalyst material b) converting the carbon-based energy carrier material at a reaction temperature between 200° C. and 450° C., preferably between 250° C. and 350° C., thereby forming reaction products in the vapor phase. In a preferred embodiment the process comprises the additional step of: c) separating the vapor phase reaction products from the particulate catalyst material within 10 seconds after said reaction products are formed; In a further preferred embodiment step c) is followed by: d) quenching the reaction products to a temperature below 200° C. | 12-17-2009 |
| 20100147742 | METHOD FOR IMPROVING BITUMEN RECOVERY FROM OIL SANDS BY PRODUCTION OF SURFACTANTS FROM BITUMEN ASPHAL TENES - In a method for increasing the efficiency of bitumen recovery from oil sands, bitumen asphaltenes naturally present in the oil sands ore are treated with selected chemical agents to produce surfactants which reduce surface and interfacial tensions and promote the production of bitumen-water emulsions, thus facilitating the extraction and recovery of bitumen for use in producing synthetic crude oil. The agents react with the asphaltenes by oxidation, sulfonation, sulfoxidation, or sulfomethylation reactions, or by a combination of such reactions. These reactions may be initiated by adding selected agents into water-based oil sand slurries in process vessels or in pipelines. Alternatively, the agents may be injected directly into subsurface oil sand formations for in situ production of surfactants to enhance the efficiency of in situ thermal bitumen recovery processes. The methods of the invention may also be used to improve the stability of bitumen-water emulsions to facilitate transportation of the emulsions by pipeline, and to enhance the recoverability of bitumen from oil sands tailings. | 06-17-2010 |
| 20100264063 | Bitumen Supply and Grading Method and Apparatus - A method of supplying or producing a desired bitumen grade for application at a site comprising: receiving a single grade of bitumen at/or proximate a bitumen grading facility | 10-21-2010 |
| 20100320119 | Process and Apparatus for Upgrading Steam Cracker Tar-Containing Effluent Using Steam - A process and apparatus are provided for the present invention relates to a process for upgrading tar-containing effluent from a steam cracker furnace that comprises: a) contacting a steam cracker tar-containing effluent with steam and for a time, sufficient to convert at least a portion of the steam cracker tar to a mixture comprising lower boiling molecules and the steam cracker tar-containing effluent; and b) separating the mixture from step a) into i) at least one tar-lean product; and ii) a tar-rich product having a final boiling above the final boiling point of the at least one tar-lean product. Step a) can includes at least one of: 1) contacting said steam cracker tar-containing effluent with steam added to the effluent in a transfer line downstream of a steam cracker furnace comprising a quench inlet, with the steam added through or downstream of the quench inlet; 2) contacting the steam cracker tar-containing effluent with steam under heat soaking conditions in a heat soaking vessel to which the steam is added; and 3) contacting the steam cracker tar-containing effluent with steam under visbreaking conditions in a visbreaker. The steam treated tar can be separated into higher value gas oil, fuel oil and tar streams. | 12-23-2010 |
| 20100326883 | PROCESS AND APPARATUS FOR INTEGRATING SLURRY HYDROCRACKING AND DEASPHALTING - Solvent deasphalting (SDA) is used to prepare a heavy hydrocarbon feed for further upgrading. An overhead deasphalted oil (DAO) stream is prepared for catalytic upgrading and an asphaltene stream is prepared for slurry hydrocracking (SHC). SHC product can be further deasphalted and the DAO can be separated from solvent in an upstream extraction column. | 12-30-2010 |
| 20110005970 | Process and Apparatus for Upgrading Steam Cracker Tar Using Hydrogen Donor Compounds - A process and apparatus are provided for upgrading steam cracker tars from steam crackers. The invention also relates to a steam cracking process and apparatus for reducing yields of tars produced from steam cracking while increasing yields of higher value products by heating steam cracker tar, in the presence of hydrogen donor compounds, e.g., tetralin. The hydrogen donor compounds can be provided in a hydrogen donor-rich hydrocarbon stream, e.g., light cycle oils, or low sulfur vacuum tower bottoms. The treated tar can be separated into gas oil, fuel oil and tar streams. | 01-13-2011 |
| 20110139677 | CATALYTIC SYSTEM AND PROCESS FOR THE HYDROCONVERSION OF HEAVY OIL PRODUCTS - Catalytic system which can be used in processes for the hydroconversion of heavy oils by means of hydrotreatment in slurry phase, characterized in that it comprises: a catalyst, having the function of hydrogenating agent, containing MoS | 06-16-2011 |
| 20120024749 | Method For Processing Hydrocarbon Pyrolysis Effluent - A method and system are disclosed for treating the effluent from a hydrocarbon pyrolysis unit employing a small primary fractionator. The method comprises cooling the effluent from a furnace through a first heat exchanger, a vapor-liquid separator, and a second heat exchanger before it is passed to a fractionator for further processing. These heat exchangers may also be utilized to heat a utility fluid as part of the cooling process. Further, one or more generators and a third heat exchanger may also be used to assist in heat recovery for the process. | 02-02-2012 |
| 20130026063 | INTEGRATION OF SOLVENT DEASPHALTING WITH RESIN HYDROPROCESSING - The invention is directed to a process that combines the solvent deasphalting with resin hydrotreatment so as to reduce the costs associated with performing each of the steps separately. The integrated process of the invention permits higher product yields coupled with lower energy and transportation costs. | 01-31-2013 |
| 20130220883 | EXFOLIATION OF ASPHALTENES FOR IMPROVED RECOVERY OF UNCONVENTIONAL OILS - A method for decomposing an asphaltene particle includes contacting the asphaltene particle with an intercalating agent and separating an asphaltene molecule from the asphaltene particle to decompose the asphaltene particle. Dispersing an asphaltene particle includes functionalizing the asphaltene particle and contacting the asphaltene particle with a solvent to disperse the asphaltene particle. Such asphaltene particle decomposition and dispersal can be used in a method for improving oil recovery that includes disposing a reagent in an oil environment; contacting an asphaltene particle with the reagent; decomposing the asphaltene particle to produce decomposed asphaltene; and displacing the decomposed asphaltene to improve oil recovery. | 08-29-2013 |
| 20130277273 | IN-SITU HYDROGENATION OF AROMATIC COMPOUNDS FOR HEAVY OIL UPGRADING - A method for upgrading a heavy oil includes: disposing a catalyst comprising rhodium and a support in a heavy oil environment, the heavy oil environment including a heavy oil comprising an aromatic compound; introducing hydrogen; and hydrogenating the aromatic compound with the catalyst and hydrogen to upgrade the heavy oil to upgraded oil. A method for converting an asphaltene includes: disposing a supported catalyst in a composition comprising an asphaltene, the supported catalyst being a low temperature catalyst; introducing hydrogen; and hydrogenating the asphaltene to convert the asphaltene into a hydrogenated asphaltene. | 10-24-2013 |
| 20130319909 | UPGRADING OF ASPHALTENE-DEPLETED CRUDES - Methods are provided for upgrading asphaltene-depleted crude fractions. The asphaltene-depleted crude fractions are upgraded by oxidizing the crude fractions by air blowing. Upgrading an asphaltene-depleted crude fraction can allow more valuable grades of asphalt to be formed from the crude fraction. Alternatively, upgrading an asphaltene-depleted crude fraction can allow for incorporation of a greater percentage of such a crude fraction in a blend of crudes that are used for making a desired grade of asphalt. | 12-05-2013 |
| 20140076777 | UPGRADING PROPERTIES OF ASPHALTS WITH WAX - Methods are provided for upgrading the quality of an asphalt containing wax. This can include base asphalts that naturally contain elevated levels of wax, such as base asphalts with a wax content of at least 3.0 wt %. Additionally or alternately, this can include a base asphalt containing subsequently added wax. Wax generated at a refinery can be added to an asphalt along with a pour point depressant to form an asphalt product. The additional wax can reduce the viscosity of the asphalt product at higher temperatures so that the asphalt product can be mixed and stored at a tower temperature. Additionally, the pour point depressant can unexpectedly improve the low temperature properties of the wax-containing asphalt product. | 03-20-2014 |
| 20140346085 | METHOD OF PREPARING PITCH FOR CARBON FIBER - Disclosed herein is a method of preparing an isotropic pitch for carbon fiber having a high softening point, and more particularly, a method of preparing an isotropic pitch for carbon fiber by mixing petroleum residues with C9 fraction to form a mixture and then heating the mixture to perform heat polymerization. With the method of preparing an isotropic pitch according to the present invention, a separate catalyst is not required, and the isotropic pitch for carbon fiber having a low softening point may be prepared with a high yield even at a relatively low temperature. | 11-27-2014 |
| 20150344785 | Upgrading Pyrolysis Tar - The invention relates to pyrolysis tar upgrading processes, and in particular for decreasing reactor pressure drop when the upgrading includes converting pyrolysis tar in a reactor. The invention also relates to upgraded pyrolysis tar, and the use of upgraded pyrolysis tar, e.g., as a fuel oil blending component. | 12-03-2015 |
| 208045000 | Solvent extraction | 11 |
| 20090057192 | Deasphalter unit throughput increase via resid membrane feed preparation - The present invention relates to a process for improving a deasphalting unit process by producing an improved feedstream for the deasphalting process via ultrafiltration of a vacuum resid-containing feedstream. In particular, the present invention produces an improved quality feedstream to a solvent deasphalting process which results in improved deasphalted oil (DAO) production rates and/or higher quality deasphalted oils. The present invention can be particularly beneficial when used in conjunction with an existing deasphalting equipment to result in improved deasphalted oil (DAO) production rates and/or higher quality deasphalted oils from the existing deasphalting equipment without the need for significant equipment modifications to the existing deasphalting unit. | 03-05-2009 |
| 20090159491 | Conversion of fine catalyst into coke-like material - A process for converting fine catalyst slurried in heavy oil into a coke-like material from which catalytic metals can be recovered comprises mixing fine catalyst slurried in heavy oil with solvent, which causes asphaltenes in the heavy oil to precipitate from the heavy oil; separating fine catalyst and precipitated asphaltenes from the heavy oil and solvent; and converting precipitated asphaltenes to a coke-like material by pyrolizing fine catalyst and precipitated asphaltenes separated from the heavy oil. | 06-25-2009 |
| 20100096297 | PROCESS AND SYSTEM FOR RECOVERY OF ASPHALTENE BY-PRODUCT IN PARAFFINIC FROTH TREATMENT OPERATIONS - A process for treating bitumen froth with paraffinic solvent is provided which uses three stages of separation. Froth and a first solvent are directed to a first stage at a solvent/bitumen ratio for precipitating few or substantially no asphaltenes. A first stage underflow is directed to a second stage and a first stage overflow is directed to a third stage. A second stage underflow is directed to waste tailings and the second stage overflow joins the first stage overflow. A third stage underflow is recovered as an asphaltene by-product and a third stage overflow is recovered as a diluted bitumen product. At least a second solvent is added to one or both of the second or third stages for controlling a fraction of asphaltenes in the third stage underflow. Asphaltene loss to waste tailings is minimized and asphaltenes are now recovered as asphaltene by-product. | 04-22-2010 |
| 20100243518 | Deasphalting of Gas Oil from Slurry Hydrocracking - Integrated slurry hydrocracking (SHC) and solvent deasphalting (SDA) methods for making slurry hydrocracking (SHC) distillates are disclosed. Representative methods involve passing a slurry comprising a vacuum column resid, a recycled, deasphalted oil obtained from SDA, and a solid particulate through an SHC reaction zone in the presence of hydrogen to obtain the SHC distillate. Fractionation or distillation in the SHC product recovery section yields a combined SHC gas oil/SHC pitch stream that is sent to SDA. In a representative embodiment, vacuum distillation in the SHC product recovery is avoided, thereby eliminating equipment that is often most susceptible to fouling. | 09-30-2010 |
| 20110011769 | Feed Delivery System For A Solid-Liquid Separation Vessel - A method of delivering feed, for example a paraffinic solvent treated bitumen froth, to a separation vessel, for example a froth separation unit (FSU). The feed is delivered from one or more side inlets that may be substantially normal to, and flush with, the wall of the vessel. In contrast to certain conventional feed systems used in gravity separators which use a distributor plate to widely distribute the feed with a vessel, the feed is delivered such that it flows down the inside wall of the vessel. This feed delivery is characterized by a Richardson number of greater than 1.0. Such feed delivery is particularly useful where the feed has particles with a bi-modal size distribution to be separated from an overflow stream. The gentle flow serves to mitigate the upward flux of the smaller particles, for example mineral solids, by being trapped below the larger particles, for example precipitated asphaltene aggregates. | 01-20-2011 |
| 20110210044 | Method And System For Reclaiming Waste Hydrocarbon From Tailings Using Solvent Sequencing - A method and system for extracting hydrocarbon products from waste tailings of a froth flotation unit and a paraffinic froth treatment process are provided. Bitumen and asphaltenes from the waste tailings are extracted using a serial addition of an aromatic solvent, followed by a polar-non-polar solvent. The method and system divert valuable hydrocarbons from tailings ponds. The hydrocarbon product can be used as a coating material or an emulsion fuel, for example. | 09-01-2011 |
| 20120055843 | Process for Oxidative Desulfurization and Sulfone Disposal Using Solvent Deasphalting - A method and apparatus for upgrading a hydrocarbon feedstock is provided. The method includes the steps of (a) supplying a hydrocarbon feedstock to an oxidation reactor, wherein the hydrocarbon feedstock is oxidized in the presence of a catalyst under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock; (c) separating the hydrocarbons and the oxidized sulfur compounds by solvent extraction; (d) collecting a residue stream that includes the oxidized sulfur compounds; and (e) supplying the residue stream to a deasphalting unit. | 03-08-2012 |
| 20130092597 | METHOD FOR REDUCING HYDROGEN SULFIDE EVOLUTION FROM ASPHALT AND HEAVY FUEL OILS - Hydrogen sulfide evolution from asphalt or heavy fuel oil may be reduced or eliminated using an additive to act as a scavenger. Zinc, in conjunction with an additional metal selected from Fe, Mn, Co, Ni, Cr, Zr, when present in the form of nano-particles of an oxide, borate or carboxylate is an effective component is preventing or mitigating the evolution of hydrogen sulfide. The nano-particles may be used neat or as a dispersion. These metals may also be complexed and used in the form of a solution. Molybdenum, when used with one or both of Fe and Zn is also a useful in any of these forms for the same purpose. | 04-18-2013 |
| 20140042055 | ASPHALT PRODUCTION FROM OIL SAND BITUMEN - Methods are provided for making asphalt from crude oils derived from mined oil sands that have been subjected to a solvent froth treatment as part of the process for making a crude oil that is suitable for pipeline transport. A froth treatment is used that preserves a greater percentage of the asphaltene content of the crude oil derived from the mined oil sands. | 02-13-2014 |
| 20140332442 | PROCESS AND APPARATUS FOR RECYCLING A DEASHED PITCH - One exemplary embodiment can be a process for recycling a deashed pitch to a slurry hydrocracking zone. The process may include adding a solvent to a neat pitch to obtain a mixture, separating a supernate and a precipitate from the mixture, segregating the solvent from the supernate, and recycling the deashed pitch from the supernate to the slurry hydrocracking zone. | 11-13-2014 |
| 20160010005 | INTEGRATED PROCESS TO PRODUCE ASPHALT, PETROLEUM GREEN COKE, AND LIQUID AND GAS COKING UNIT PRODUCTS | 01-14-2016 |
