| Patent application number | Description | Published |
|---|
| 20090120842 | Process for upgrading whole crude oil to remove nitrogen and sulfur compounds - A crude oil feedstream is treated to remove or reduce the content of known undesired heteroatomic and polynuclear aromatic compounds containing nitrogen and sulfur by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired compounds from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorbed boiling ranges of products having a lowered content of the undesired compounds, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process. | 05-14-2009 |
| 20090301931 | ASPHALT PRODUCTION FROM SOLVENT DEASPHALTING BOTTOMS - A cost-effective solution is provided for eliminating refinery process waste, including spent catalytic and non-catalytic adsorbent materials, as well as adsorbate process reject materials derived from desorption, while minimizing conventional waste handling demands. An asphalt composition includes asphalt and spent adsorbent material from a solvent deasphalting unit. The asphalt can comprise asphaltic material obtained from a solvent deasphalting unit, and spent adsorbent material in the asphalt composition was previously utilized in the solvent deasphalting unit. The asphalt composition can also include process reject materials. | 12-10-2009 |
| 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 |
| 20100032343 | Metallic clay based FCC gasoline sulfur reduction additive compositions - Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit. | 02-11-2010 |
| 20100147647 | Apparatus for upgrading whole crude oil to remove nitrogen and sulfur compounds - A crude oil feedstream is treated to remove or reduce the content of known undesired heteroatomic and polynuclear aromatic compounds containing nitrogen and sulfur by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired compounds from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorbed boiling ranges of products having a lowered content of the undesired compounds, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process. | 06-17-2010 |
| 20100252483 | PROCESS FOR REMOVAL OF NITROGEN AND POLY-NUCLEAR AROMATICS FROM FCC FEEDSTOCKS - A feedstream to an FCC unit is treated to remove or reduce the content of polynuclear aromatics and nitrogen-containing compounds by contacting the feedstream with an adsorbent compound selected from attapulgus clay, alumina, silica gel and activated carbon in a fixed bed or slurry column and separating the treated feedstream that is lower in the undesired compounds from the adsorbent material. The adsorbent can be mixed with a solvent for the undesired compounds and stripped for re-use. | 10-07-2010 |
| 20110079541 | PRESSURE CASCADED TWO-STAGE HYDROCRACKING UNIT - A method and apparatus for hydrocracking an oil feedstock to produce a light oil stream without build-up of heavy polynuclear aromatic (HPNA) hydrocarbons in the recycle stream is provided. The method includes the steps of (1) hydrocracking the oil feedstock with a hydrotreating catalyst in a first reactor to produce an effluent stream; (2) fractionating the effluent stream into first, second and third product streams, wherein the first product stream includes C | 04-07-2011 |
| 20110120912 | METALLIC CLAY BASED FCC GASOLINE SULFUR REDUCTION ADDITIVE COMPOSITIONS - Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit. | 05-26-2011 |
| 20110220546 | HIGH QUALITY MIDDLE DISTILLATE PRODUCTION PROCESS - A hydrocarbon feedstock is hydrocracked in a hydrocracking zone and the effluent is fractioned to recover a light fraction, a middle fraction containing aromatic compounds and a heavy fraction. The heavy fraction is recycled to the hydrocracking zone for further hydrocracking. The middle fraction is introduced to an aromatic separation zone. A product stream is recovered from the aromatic separation zone comprising a middle fraction having a reduced content of aromatic compounds as compared to the middle fraction recovered from the fractionator. Aromatics from the aromatic separation zone are recycled to the hydrocracking zone for further hydrogenation and cracking. | 09-15-2011 |
| 20110220547 | TARGETED DESULFURIZATION PROCESS AND APPARATUS INTEGRATING OXIDATIVE DESULFURIZATION AND HYDRODESULFURIZATION TO PRODUCE DIESEL FUEL HAVING AN ULTRA-LOW LEVEL OF ORGANOSULFUR COMPOUNDS - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A first fraction contains refractory organosulfur compounds, which boil at or above the target cut point temperature. A second fraction boiling below the target cut point temperature is substantially free of refractory sulfur-containing compounds. The second fraction is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. The first fraction is contacted with an oxidizing agent and an active metal catalyst in an oxidation reaction zone to convert the refractory organosulfur compounds to oxidized organosulfur compounds. The oxidized organosulfur compounds are removed, producing a stream containing an ultra-low level of organosulfur compounds. The two streams can be combined to obtain a full range hydrocarbon product having an ultra-low level of organosulfur compounds. | 09-15-2011 |
| 20110226666 | SYSTEM AND PROCESS FOR INTEGRATED OXIDATIVE DESULFURIZATION, DESALTING AND DEASPHALTING OF HYDROCARBON FEEDSTOCKS - A system and process for integrated desulfurizing, desalting and deasphalting of hydrocarbon feedstocks is provided. A hydrocarbon feedstock, a water soluble oxidant, and a water soluble catalyst can be introduced in a oxidation zone and retained for a period of time sufficient to achieve the desired degree of desulfurization, or introduced directly into the desalting zone along with wash water. Catalyst and dissolved salt are discharged along with the wastewater effluent from the desalting zone. A hydrocarbon stream including converted hydrocarbons and oxidation by-products is passed to a deasphalting zone. In the deasphalting zone, phase separation occurs, whereby a light phase including desulfurized hydrocarbons are produced, and a heavy phase including asphaltenes and oxidation by-products are discharged, e.g., passed to an asphalt pool. | 09-22-2011 |
| 20110233110 | INTEGRATED HYDROTREATING AND OXIDATIVE DESULFURIZATION PROCESS - A system and process for desulfurizing a hydrocarbon feed stream containing organosulfur compounds is provided. In general, the system includes a conventional hydrotreating unit through the high pressure cold or hot separator. Aqueous oxidant and an oxidative catalyst are mixed with the hydrotreated hydrocarbon effluent from the high pressure cold or hot separator, and oxidative desulfurization reactions occur in the low pressure separation zone, thereby minimizing or eliminating the requirement of additional oxidative desulfurization reactors. | 09-29-2011 |
| 20110233112 | IONIC LIQUID DESULFURIZATION PROCESS INCORPORATED IN A CONTACT VESSEL - Initial high sulfur levels of a hydrocarbon feedstock are reduced to desired low levels without the need for integration of substantial new equipment or hardware with existing hydroprocessing reactors. Ionic liquids are utilized as organic sulfur extraction agents and are added to and mixed with the hydrocarbon feedstock containing organosulfur compounds downstream of an existing cold separator vessel. The ionic liquid and hydrocarbon mixture is maintained in a contact vessel under conditions which promote the formation of ionic sulfur-containing derivatives that are soluble in the ionic liquid to be formed, thereby enabling extractive removal and separation of the organosulfur compounds from the feedstock. | 09-29-2011 |
| 20110233113 | IONIC LIQUID DESULFURIZATION PROCESS INCORPORATED IN A LOW PRESSURE SEPARATOR - Initial high sulfur levels of a hydrocarbon feedstock are reduced to desired low levels without the need for integration of substantial new equipment or hardware with existing hydroprocessing reactors. Ionic liquids are utilized as organic sulfur extraction agents and are added to and mixed with the hydrocarbon feedstock containing organosulfur compounds in, or upstream of, an existing cold separator vessel. The ionic liquid and hydrocarbon mixture is maintained in contact under conditions which promote the formation of ionic sulfur-containing derivatives that are soluble in the ionic liquid to be formed, thereby enabling extractive removal and separation of the organosulfur compounds from the feedstock. | 09-29-2011 |
| 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 |
| 20120055844 | Process for Oxidative Desulfurization and Denitrogenation Using A Fluid Catalytic Cracking (FCC) Unit - A method and apparatus for recovering components from 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 and nitrogen compounds present in the hydrocarbon feedstock; (b) separating the hydrocarbons, the oxidized sulfur compounds, and the oxidized nitrogen compounds by solvent extraction; (c) collecting a residue stream that includes the oxidized sulfur compounds and the oxidized nitrogen compounds; and (d) supplying the residue stream to a fluid catalytic cracking unit. | 03-08-2012 |
| 20120055845 | Desulfurization and Sulfone Removal Using A Coker - 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 coker to produce coker gases and solid coke. | 03-08-2012 |
| 20120055849 | Process for Oxidative Desulfurization and Sulfone Management by Gasification - 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 gasifier to produce a syngas stream and a hydrogen sulfide stream. | 03-08-2012 |
| 20120073292 | Process for the gasification of waste tires with residual oil - A process for the production of a synthesis gas containing hydrogen and carbon monoxide utilizes shredded waste tires that are substantially free of metal particles as a feedstream, either alone or in combination with a residual oil feedstream, for gasification in the combustion chamber of a tubular wall membrane partial oxidation gasification reactor in the presence of a predetermined amount of oxygen. Optionally, the product synthesis gas is introduced as the feedstream to a water gas shift reactor to enhance the hydrogen content of the final product stream. | 03-29-2012 |
| 20120074040 | INTEGRATED DEASPHALTING AND OXIDATIVE REMOVAL OF HETEROATOM HYDROCARBON COMPOUNDS FROM LIQUID HYDROCARBON FEEDSTOCKS - A system and process are provided for integrated deasphalting and desulfurization of hydrocarbon feedstock in which the hydrocarbon feedstock, an oxidant, and an oxidation catalyst are mixed prior to passage into a primary settler of a solvent deasphalting unit. Oxidation products, including oxidized organosulfur compounds, are discharged with the asphalt phase. | 03-29-2012 |
| 20120145599 | INTEGRATED DESULFURIZATION AND DENITRIFICATION PROCESS INCLUDING MILD HYDROTREATING AND OXIDATION OF AROMATIC-RICH HYDROTREATED PRODUCTS - Reduction of sulfur-containing and nitrogen-containing compounds from hydrocarbon feeds is achieved by first contacting the entire feed with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. An extraction zone downstream of the hydrotreating reaction zone separates an aromatic-rich fraction that contains a substantial amount of the remaining refractory organosulfur and organonitrogen compounds. The aromatic-lean fraction is substantially free of organosulfur and organonitrogen compounds, since the non-aromatic organosulfur and organonitrogen compounds were the labile organosulfur and organonitrogen compounds which were initially removed by mild hydrotreating. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized sulfur-containing and nitrogen-containing hydrocarbon compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed. | 06-14-2012 |
| 20120152804 | INTEGRATED DESULFURIZATION AND DENITRIFICATION PROCESS INCLUDING MILD HYDROTREATING OF AROMATIC-LEAN FRACTION AND OXIDATION OF AROMATIC-RICH FRACTION - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur and organonitrogen compounds to produce a hydrocarbon product having low levels of sulfur-containing and nitrogen-containing compounds, is achieved by first subjecting the entire feed to an extraction zone to separate an aromatic-rich fraction containing a substantial amount of the refractory organosulfur and organonitrogen compounds and an aromatic-lean fraction containing a substantial amount of the labile organosulfur and organonitrogen compounds. The aromatic-lean fraction is contacted with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized organosulfur and organonitrogen compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed, producing a stream containing reduced levels of organosulfur and organonitrogen compounds. | 06-21-2012 |
| 20120152808 | PROCESS FOR UPGRADING HYDROCARBON FEEDSTOCKS USING SOLID ADSORBENT AND MEMBRANE SEPARATION OF TREATED PRODUCT STREAM - A process for upgrading hydrocarbon oil feedstreams employs a solid adsorption material to lower sulfur and nitrogen content by contacting the hydrocarbon oil, with a solid adsorbents in a mixing vessel; passing the slurry to a membrane separation zone 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 aromatic solvent to remove and stabilize the sulfur and nitrogen compounds; transferring the solvent mixture 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. | 06-21-2012 |
| 20120187027 | HYDROCRACKING PROCESS WITH FEED/BOTTOMS TREATMENT - A hydrocracking process is provided for treating a first heavy hydrocarbon feedstream and a second heavy hydrocarbon feedstream, in which the first heavy hydrocarbon feedstream contains undesired nitrogen-containing compounds, sulfur-containing compounds and poly-nuclear aromatic compounds. The process includes contacting the first heavy hydrocarbon feedstream with adsorbent material to produce an adsorbent-treated heavy hydrocarbon stream having a reduced content of nitrogen-containing, sulfur-containing compounds and poly-nuclear aromatic compounds. The second heavy hydrocarbon feedstream is combined with the adsorbent-treated heavy hydrocarbon stream. The combined stream is charged to a hydrocracking reaction unit. The hydrocracked effluent is fractioned to recover hydrocracked products and a bottoms stream containing heavy poly-nuclear aromatic compounds. Fractionator bottoms are contacted with adsorbent material (which can be the same or different than the adsorbent material used to treat the initial feed) to produce an adsorbent-treated fractionator bottoms stream having a reduced content of heavy poly-nuclear aromatic compounds, and are recycled to the hydrocracking reaction unit. | 07-26-2012 |
| 20120189505 | PRESSURE CASCADED TWO-STAGE HYDROCRACKING UNIT - An apparatus for hydrocracking an oil feedstock to produce a light oil stream without build-up of heavy polynuclear aromatic (HPNA) hydrocarbons in the recycle stream is provided. The apparatus includes a reactor for hydroprocessing the hydrocarbon feedstock to produce effluents, which are subsequently fractionated. Additional hydroprocessing reactors are provided for hydroprocessing individual fractionated product streams. | 07-26-2012 |
| 20120241358 | INTEGRATED HYDROCRACKING AND FLUIDIZED CATALYTIC CRACKING SYSTEM AND PROCESS - A system and method of cracking hydrocarbon feedstocks is provided that allows for significant flexibility in terms of the desired product yield. An integrated process includes introducing the feedstock and hydrogen into a first hydrocracking reaction zone containing a first hydrocracking catalyst to produce a first zone effluent. The first zone effluent is passed to a fractionating zone to produce at least a low boiling fraction and a high boiling fraction, and optionally one or more intermediate fractions. The bottoms fraction is conveyed to a fluidized catalytic cracking reaction and separation zone, from which olefins and gasoline are recovered. At least a portion of remaining cycle oil is passed from the fluidized catalytic cracking reaction and separation zone to a second hydrocracking reaction zone containing a second hydrocracking catalyst to produce a second stage effluent. At least a portion of the second stage effluent is recycled to the fractionating zone and/or the first hydrocracking reaction zone. | 09-27-2012 |
| 20120241359 | CRACKING SYSTEM AND PROCESS INTEGRATING HYDROCRACKING AND FLUIDIZED CATALYTIC CRACKING - A system and method of cracking hydrocarbon feedstocks is provided that allows for significant flexibility in terms of the desired product yield. An integrated process includes introducing the feedstock and hydrogen into a first hydrocracking reaction zone containing a first hydrocracking catalyst to produce a first zone effluent. The first zone effluent and optionally additional hydrogen are passed to a second hydrocracking reaction zone containing a second hydrocracking catalyst to produce a second zone effluent. The second zone effluent is conveyed to a fractionating zone to at least a low boiling fraction and a high boiling fraction, and optionally one or more intermediate fractions. The bottoms fraction is passed to a fluidized catalytic cracking reaction and separation zone, from which olefins and gasoline are recovered. At least a portion of remaining cycle oil is passed from the fluidized catalytic cracking reaction and separation zone to the first and/or second hydrocracking reaction zone. | 09-27-2012 |
| 20120298552 | PROCESS FOR DELAYED COKING OF WHOLE CRUDE OIL - An improved delayed coking process utilizing a coking unit and a coking unit product fractionating column which includes the steps of:
| 11-29-2012 |
| 20130015104 | PROCESS FOR SULFONE CONVERSION BY SUPER ELECTRON DONORSAANM Al-Hajji; AdnanAACI DammamAACO SAAAGP Al-Hajji; Adnan Dammam SAAANM Bourane; AbdennourAACI Ras TanuraAACO SAAAGP Bourane; Abdennour Ras Tanura SAAANM Koseoglu; Omer RefaAACI DhahranAACO SAAAGP Koseoglu; Omer Refa Dhahran SA - A process wherein an electron donor agent is provided for the decomposition of sulfones and sulfoxides formed after the oxidative desulfurization of a sulfur-containing hydrocarbon stream. | 01-17-2013 |
| 20130026062 | INTEGRATED SYSTEM AND PROCESS FOR IN-SITU ORGANIC PEROXIDE PRODUCTION AND OXIDATIVE HETEROATOM CONVERSION - An oxidative treatment process, e.g., oxidative desulfurization or denitrification, is provided in which the oxidant is produced in-situ using an aromatic-rich portion of the original liquid hydrocarbon feedstock. The process reduces or replaces the need for the separate introduction of liquid oxidants such as hydrogen peroxide, organic peroxide and organic hydroperoxide in an oxidative treatment process. | 01-31-2013 |
| 20130026065 | Integrated Selective Hydrocracking and Fluid Catalytic Cracking Process - An integrated process and system for conversion of a heavy crude oil to produce transportation fuels is provided. The process includes separating the hydrocarbon feed into an aromatic-lean fraction and an aromatic-rich fraction. The aromatic-rich fraction is hydrocracked under relatively high pressure to convert at least a portion of refractory aromatic organosulfur and organonitrogen compounds and to produce a hydrocracked product stream. Unconverted bottoms effluent is recycled to the aromatic separation step. The aromatic-lean fraction is cracked in a fluidized catalytic cracking reaction zone to produce a cracked product stream, a light cycle oil stream and a heavy cycle oil stream. In certain embodiments the aromatic-lean fraction can be hydrotreated prior to fluidized catalytic cracking. | 01-31-2013 |
| 20130026067 | HYDROGEN-ENRICHED FEEDSTOCK FOR FLUIDIZED CATALYTIC CRACKING PROCESS - A process for catalytically cracking a hydrocarbon oil containing sulfur and/or nitrogen hydrocarbon constituents by dissolving excess hydrogen in the liquid hydrocarbon feedstock in a mixing zone at a temperature of 420° C. to 500° C. and a hydrogen-to-feedstock oil volumetric ratio of 300:1 to 3000:1, flashing the mixture to remove remaining hydrogen and any light components in the feed, introducing the hydrogen saturated hydrocarbon feed into an FCC reactor for contact with a catalyst suspension in a riser or downflow reactor to produce lower boiling hydrocarbon components which can be more efficiently and economically separated into lower molecular weight hydrocarbon products, hydrogen sulfide and ammonia gas and unreacted hydrogen in a separation zone. Hydrogen present in the liquid phase enhances the desulfurization and denitrification reactions which occur during the conversion process and allows for the removal of significantly more sulfur- and/or nitrogen-containing contaminants from the feedstock in an economical fashion. | 01-31-2013 |
| 20130026068 | EBULLATED-BED PROCESS FOR FEEDSTOCK CONTAINING DISSOLVED HYDROGEN - An improved system and method for processing feedstocks in an ebullated-bed hydroprocessing reactor is provided in which hydrogen gas is dissolved in the fresh and recycled liquid feedstock by mixing and/or diffusion of an excess of hydrogen, followed by flashing of the undissolved hydrogen upstream of the reactor inlet, introduction of the feed containing dissolved hydrogen into the ebullated-bed hydroprocessing reactor whereby the dissolved hydrogen eliminates or minimizes the prior art problems of gas hold-up and reduced operational efficiency of the recycle pump due to the presence of excess gas in the recycle stream when hydrogen gas was introduced as a separate phase into the reactor. | 01-31-2013 |
| 20130026069 | SOLVENT-ASSISTED DELAYED COKING PROCESS - An improved process for the delayed coking of a heavy residual hydrocarbon feedstock to reduce the coking induction period and to enhance the coking process relative to the processes of the prior art is achieved by mixing a sufficient volume of a paraffinic solvent having the formula C | 01-31-2013 |
| 20130026071 | OXIDATIVE DESULFURIZATION IN FLUID CATALYTIC CRACKING PROCESS - A process for catalytically cracking and oxidatively desulfurizing a hydrocarbon feedstock containing organosulfur compounds is provided. Oxygen containing gas is introduced with a cracking catalyst and the feed to form a suspension. At least a portion of organosulfur compounds in the hydrocarbon feedstock are oxidized to form oxidized organosulfur compounds, carbon-sulfur bonds of oxidized organosulfur compounds are cleaved to form sulfur-free hydrocarbon compounds and sulfur oxides, and oxidized and unoxidized compounds are catalytically cracked into hydrocarbon compounds of lower boiling points. Cracked components and the cracking catalyst particles are separated and recovered for regeneration and reuse. | 01-31-2013 |
| 20130026072 | CATALYTIC COMPOSITIONS USEFUL IN REMOVAL OF SULFUR COMPOUNDS FROM GASEOUS HYDROCARBONS, PROCESSES FOR MAKING THESE AND USES THEREOF - A catalytic composition is disclosed, which exhibits an X-ray amorphous oxide, with a spinel formula and highly dispersed crystals of ZnO, CuO, and optionally CeO | 01-31-2013 |
| 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 |
| 20130026418 | PRODUCTION OF SYNTHESIS GAS FROM SOLVENT DEASPHALTING PROCESS BOTTOMS IN A MEMBRANE WALL GASIFICATION REACTOR - A cost-effective solution for the disposal of solvent deasphalting process bottoms that include spent solid adsorbent material containing ash-producing constituents, asphalt and process reject materials is provided by introducing them in the form of a flowable slurry into a membrane wall gasification reactor to produce a synthesis gas and, optionally, subjecting the synthesis gas to a water-gas shift reaction to produce a more hydrogen-rich product stream; process steam and electricity are produced by recovering the sensible heat values from the hot synthesis gas. | 01-31-2013 |
| 20130028822 | CATALYTIC COMPOSITIONS USEFUL IN REMOVAL OF SULFUR COMPOUNDS FROM GASEOUS HYDROCARBONS, PROCESSES FOR MAKING THESE AND USES THEREOF - A catalytic composition is disclosed, which exhibits an X-ray amorphous oxide, with a spinel formula and highly dispersed crystals of ZnO, CuO, and optionally CeO | 01-31-2013 |
| 20130028834 | PROCESS FOR THE GASIFICATION OF HEAVY RESIDUAL OIL WITH PARTICULATE COKE FROM A DELAYED COKING UNIT - A process for the production of a synthesis gas containing hydrogen and carbon monoxide utilizes ground coke having a predetermined ash content in combination with a refinery residual hydrocarbon oil feedstream for gasification in the combustion chamber of a tubular wall membrane partial oxidation gasification reactor in the presence of a predetermined amount of oxygen; the coke and residual oil can be mixed to form a single feedstream or introduced into the reactor as separate feeds. Optionally, the product synthesis gas is introduced as the feedstream to a water-gas shift reactor to enhance the hydrogen content of the final product stream. | 01-31-2013 |
| 20130030236 | PROCESS FOR OXIDATIVE DESULFURIZATION WITH INTEGRATED SULFONE DECOMPOSITION - The process provided herein is concerned with disposal of oxidized sulfur compounds formed by oxidative desulfurization. The process uses solid base catalyst in the presence of a caustic solution or solid base catalyst pretreated with a base and eliminates the need to separate the sulfones from the hydrocarbon streams and recover the hydrocarbons. | 01-31-2013 |
| 20130037448 | PROCESS FOR REDUCING THE TOTAL ACID NUMBER IN REFINERY FEEDSTOCKS - A process is described for reducing the total acid number of a refinery feedstock. In one embodiment, refinery feedstock containing naphthenic acids is contacted with an effective amount of solid catalyst in the presence of an aqueous caustic base, wherein the caustic base is sodium hydroxide or potassium hydroxide, for a period of time sufficient to neutralize at least a portion of the naphthenic acids in the feedstock. Thereafter, the aqueous phase is separated from the neutralized refinery feedstock. In another embodiment catalyst is pretreated with a caustic base solution and contacted with refinery feedstock to reducing the total acid number. | 02-14-2013 |
| 20130056392 | SELECTIVE TWO-STAGE HYDROPROCESSING SYSTEM AND METHOD - Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatics-rich and aromatic-lean fractions separately, the hydrocracking operating severity and or catalyst reactor volume requirement decreases. | 03-07-2013 |
| 20130062251 | SELECTIVE TWO-STAGE HYDROPROCESSING SYSTEM AND METHOD - Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatic-rich and aromatic-lean fractions separately, the hydrocracking operating severity and or catalyst reactor volume requirement decreases. | 03-14-2013 |
| 20130062252 | SELECTIVE SERIES-FLOW HYDROPROCESSING SYSTEM AND METHOD - Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatic-rich and aromatic-lean fractions separately, the hydrocracking operating severity and/or catalyst reactor volume requirement decreases. | 03-14-2013 |
| 20130062254 | SELECTIVE SINGLE-STAGE HYDROPROCESSING SYSTEM AND METHOD - Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatic-rich and aromatic-lean fractions separately, the hydrocracking operating severity and/or catalyst reactor volume requirement decreases. | 03-14-2013 |
| 20130062255 | Hydrotreating of Aromatic-Extracted Hydrocarbon Streams - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by first subjecting the entire feed to an extraction zone to separate an aromatic-rich fraction containing a substantial amount of the aromatic refractory and sterically hindered sulfur-containing compounds and an aromatic-lean fraction containing a substantial amount of the labile sulfur-containing compounds. The aromatic-rich fraction is contacted with isomerization catalyst, and the isomerized aromatic-rich fraction and the aromatic-lean fraction are combined and contacted with a hydrotreating catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. | 03-14-2013 |
| 20130062256 | INTEGRATED HYDROTREATING AND ISOMERIZATION PROCESS WITH AROMATIC SEPARATION - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by hydrotreating the feed under mild conditions, and separating the hydrotreated effluent into an aromatic-rich fraction which contains a substantial amount of the aromatic refractory and sterically hindered sulfur-containing compounds, and an aromatic-lean fraction. The aromatic-rich fraction is contacted with isomerization catalyst, and the isomerized aromatic-rich fraction is recycled to the mild hydrotreating process. | 03-14-2013 |
| 20130062257 | Integrated Isomerization and Hydrotreating Process - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A low boiling temperature fraction contains refractory, sterically hindered sulfur-containing compounds, which have a boiling point at or above the target cut point temperature. A high boiling temperature fraction, having a boiling point below the target cut point temperature, is substantially free of refractory sulfur-containing compounds. The high boiling temperature fraction is contacted with isomerization catalyst, and the isomerized effluent and the low boiling temperature fraction are combined and contacted with a hydrotreating catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. | 03-14-2013 |
| 20130067815 | GASIFICATION OF HEAVY RESIDUE WITH SOLID CATALYST FROM SLURRY HYDROCRACKING PROCESS - A cost-effective solution for the disposal of heavy residue bottoms recovered from a slurry hydrocracking process that include solid heterogeneous catalyst particles is provided by their introduction into a membrane wall gasification reactor in the form of a flowable slurry to produce a synthesis gas and, optionally, subjecting the synthesis gas to a water-gas shift reaction to produce a more hydrogen-rich product stream. Process steam and electricity are produced by recovering the sensible heat values from the hot synthesis gas. | 03-21-2013 |
| 20130068659 | SELECTIVE SERIES-FLOW HYDROPROCESSING SYSTEM AND METHOD - Aromatic extraction and hydrocracking processes are integrated to optimize the hydrocracking units design and/or performance. By processing aromatics-rich and aromatic-lean fractions separately, the hydrocracking operating severity and or catalyst reactor volume requirement decreases. | 03-21-2013 |
| 20130098802 | HYDROCRACKING PROCESS WITH INTERSTAGE STEAM STRIPPING - In a hydrocracking process, the product from the first stage reactor passes through a steam stripper to remove hydrogen, H | 04-25-2013 |
| 20130126392 | SLURRY BED HYDROPROCESSING AND SYSTEM USING FEEDSTOCK CONTAINING DISSOLVED HYDROGEN - A system and process for conversion of heavy feedstocks in a slurry bed hydroprocessing reactor is provided in which (a) hydrogen gas is dissolved in the liquid feedstock by mixing and/or diffusion, (b) the mixture is flashed to remove and recover any light components and hydrogen, leaving a hydrogen-enriched feedstock. A homogenous and/or heterogeneous catalyst is added to the feedstock upstream of the inlet of the slurry bed hydroprocessing reactor. | 05-23-2013 |
| 20130126395 | PROCESS FOR DEMETALLIZATION OF WHOLE CRUDE OIL - A crude oil feedstream is treated to remove or reduce the content of undesired metal components including nickel and/or vanadium by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired metal components from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorted boiling ranges of products having a lowered content of the undesired metal components, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process. | 05-23-2013 |
| 20130175202 | HYDROCRACKING CATALYST FOR HYDROCARBON OIL, METHOD FOR PRODUCING HYDROCRACKING CATALYST, AND METHOD FOR HYDROCRACKING HYDROCARBON OIL WITH HYDROCRACKING CATALYST - The present invention relates to a hydrocracking catalyst for hydrocarbon oil comprising a support containing a framework-substituted zeolite-1 in which zirconium atoms and/or hafnium atoms form a part of a framework of an ultrastable y-type zeolite and a hydrogenative metal component carried thereon and a method for producing the same. The hydrocracking catalyst of the present invention makes it easy to diffuse heavy hydrocarbon oils such as VGO, DAO and the like into mesopores, is improved in a cracking activity and makes it possible to obtain a middle distillate at a high yield as compared with catalysts prepared by using zeolite comprising titanium and/or zirconium carried thereon. | 07-11-2013 |
| 20130186805 | SELECTIVE MIDDLE DISTILLATE HYDROTREATING PROCESS - A selective mid-distillate hydrotreating process is provided for production of hydrocarbon fuels with an ultra-low level of sulfur in which the initial hydrocarbon feedstock is introduced into to an aromatic extraction zone to produce an aromatic-lean fraction and an aromatic-rich fraction, which contain different classes of organosulfur compounds having different reactivities when subjected to hydrotreating reactions. The aromatic-lean fraction contains primarily labile heteroatom-containing compounds, and is passed to a first hydrotreating zone operating under mild conditions to remove the sulfur heteroatom from organosulfur hydrocarbon compounds. The aromatic-rich fraction contains primarily refractory heteroatom-containing compounds, including aromatic molecules such as certain benzothiophenes (e.g., long chain alkylated benzothiophenes), dibenzothiophene and alkyl derivatives, such as sterically hindered 4,6-dimethyldibenzothiophene, and is passed to a hydrotreating zone operating under relatively severe conditions to remove the heteroatom from sterically hindered refractory compounds. | 07-25-2013 |
| 20130199968 | MILD HYDRODESULFURIZATION INTEGRATING GAS PHASE CATALYTIC OXIDATION TO PRODUCE FUELS HAVING AN ULTRA-LOW LEVEL OF ORGANOSULFUR COMPOUNDS - Desulfurization of hydrocarbon feeds is achieved by first contacting the entire feed with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions; a flashing column downstream of the hydrodesulfurization reaction zone fractionates the effluent to obtain a first fraction which contains refractory organosulfur compounds and a second fraction that is substantially free of organosulfur compounds, since the organosulfur compounds boiling in the range of this fraction were the labile organosulfur compounds which were initially removed by mild hydrodesulfurization. The first fraction is contacted with a gaseous oxidizing agent over an oxidation catalyst having a formula Cu | 08-08-2013 |
| 20130256601 | INTEGRATED PROCESS FOR THE GASIFICATION OF WHOLE CRUDE OIL IN A MEMBRANE WALL GASIFIER AND POWER GENERATION - An integrated process for the partial oxidation of whole crude oil mixed with a low cost finely divided solid ash-producing material in a membrane wall gasification reactor produces a syngas and, optionally, a more hydrogen-rich product stream by subjecting the syngas to a water-gas shift reaction. Process steam and electricity are produced by recovering the sensible heat values from the hot syngas. | 10-03-2013 |
| 20130292299 | INTEGRATED EBULLATED-BED PROCESS FOR WHOLE CRUDE OIL UPGRADING - A system and process for upgrading a whole crude oil feed in an integrated ebullated-bed and hydrotreater is provided in which the whole crude oil is flashed into a flashed straight run distillates fraction and an atmospheric residue fraction. The atmospheric residue fraction is hydroprocessed in an ebullated-bed reaction zone, while the flashed straight run distillates fraction and the products fraction produced from the ebullated-bed reaction zone are hydrotreated in a fixed-bed reaction zone. Distillates from the hydrotreater and the unconverted residue fraction from the ebullated-bed reaction zone can be combined to produce an upgraded synthetic crude oil. | 11-07-2013 |
| 20130315793 | HYDROTREATING UNIT WITH INTEGRATED OXIDATIVE DESULFURIZATION - A system and process for desulfurizing a hydrocarbon feed stream containing organosulfur compounds is provided. In general, the system includes a conventional hydrotreating unit through the high pressure cold or hot separator. Aqueous oxidant and an oxidative catalyst are mixed with the hydrotreated hydrocarbon effluent from the high pressure cold or hot separator, and oxidative desulfurization reactions occur in the low pressure separation zone, thereby minimizing or eliminating the requirement of additional oxidative desulfurization reactors. | 11-28-2013 |
| 20130319910 | INTEGRATED PROCESS FOR DEASPHALTING AND DESULFURIZING WHOLE CRUDE OIL - The invention relates to processes for removing impurities, such as asphalt, from whole crude oil. The invention is accomplished by first deasphalting a feedstock, followed by processing resulting DAO and asphalt fractions. The DAO fraction is hydrocracked, resulting in removal of sulfur and hydrocarbons which boil at temperatures over 370° C., and gasifying the asphalt portion. | 12-05-2013 |
| 20130334060 | HYDROGEN PRODUCTION FROM AN INTEGRATED ELECTROLYSIS CELL AND HYDROCARBON GASIFICATION REACTOR - An integrated process for hydrogen gas production includes:
| 12-19-2013 |
| 20130334103 | DESULFURIZATION OF HYDROCARBON FEED USING GASEOUS OXIDANT - An apparatus and process for desulfurization of hydrocarbon feeds is disclosed in which pure nitrous oxide, or a mixture of nitrous oxide and oxygen or air, is used as a gaseous oxidant. Organosulfur compounds are converted to their corresponding oxides sulfones and/or sulfoxides in an oxidation reactor, and oxides are subsequently removed from the oxidation reactor effluent to recover a reduced sulfur-content hydrocarbon product. | 12-19-2013 |
| 20130343956 | INTEGRATED HYDROCRACKING AND FLUIDIZED CATALYTIC CRACKING SYSTEM - A system and method of cracking hydrocarbon feedstocks is provided that allows for significant flexibility in terms of the desired product yield. An integrated process includes introducing the feedstock and hydrogen into a first hydrocracking reaction zone containing a first hydrocracking catalyst to produce a first zone effluent. The first zone effluent is passed to a fractionating zone to produce at least a low boiling fraction and a high boiling fraction, and optionally one or more intermediate fractions. The bottoms fraction is conveyed to a fluidized catalytic cracking reaction and separation zone, from which olefins and gasoline are recovered. At least a portion of remaining cycle oil is passed from the fluidized catalytic cracking reaction and separation zone to a second hydrocracking reaction zone containing a second hydrocracking catalyst to produce a second stage effluent. At least a portion of the second stage effluent is recycled to the fractionating zone and/or the first hydrocracking reaction zone. | 12-26-2013 |
| 20130343957 | CRACKING SYSTEM INTEGRATING HYDROCRACKING AND FLUIDIZED CATALYTIC CRACKING - A system and method of cracking hydrocarbon feedstocks is provided that allows for significant flexibility in terms of the desired product yield. An integrated process includes introducing the feedstock and hydrogen into a first hydrocracking reaction zone containing a first hydrocracking catalyst to produce a first zone effluent. The first zone effluent and optionally additional hydrogen are passed to a second hydrocracking reaction zone containing a second hydrocracking catalyst to produce a second zone effluent. The second zone effluent is conveyed to a fractionating zone to at least a low boiling fraction and a high boiling fraction, and optionally one or more intermediate fractions. The bottoms fraction is passed to a fluidized catalytic cracking reaction and separation zone, from which olefins and gasoline are recovered. At least a portion of remaining cycle oil is passed from the fluidized catalytic cracking reaction and separation zone to the first and/or second hydrocracking reaction zone. | 12-26-2013 |
| 20140054199 | Hydrovisbreaking Process for Feedstock Containing Dissolved Hydrogen - An improved hydrovisbreaking process for reducing the viscosity of a liquid hydrocarbon feedstock is provided. A substantially single-phase hydrogen-enriched liquid hydrocarbon feedstock is obtained by mixing the feedstock with hydrogen gas and flashing off the excess hydrogen gas. Comparatively smaller reactor vessels can be used without a gas recycle system, thus reducing the capital cost of hydrovisbreaking process. Further the need for cutter stocks can be minimized or eliminated. | 02-27-2014 |
| 20140090985 | Process for Reducing the Sulfur Content from Oxidized Sulfur-Containing Hydrocarbons - A process and system for reducing the sulfur content from a mixture of hydrocarbons and oxidized sulfur-containing hydrocarbons is provided by electrochemical decomposition. The electrochemical reactions occur under electrical potential and in the presence of an electrolyte solution that is effective promote decomposition of a portion of the oxidized sulfur compounds, to recover a hydrocarbon product having a reduced sulfur content while minimizing loss of hydrocarbon. | 04-03-2014 |
| 20140106958 | CLAY ADDITIVE FOR REDUCTION OF SULFUR IN CATALYTICALLY CRACKED GASOLINE - Compositions and processes for their use as additives for reducing the sulfur content of FCC gasoline employ a support material montmorillonite clay material. A fluid catalytic cracking (FCC) mixture, therefore, is provided comprising an FCC catalyst and separate particles of sulfur reduction additive consisting of porous montmorillonite clay. | 04-17-2014 |
| 20140131255 | OXIDATIVE DESULFURIZATION PROCESS AND SYSTEM USING GASEOUS OXIDANT-ENHANCED FEED - An oxidative desulfurization process is provided in which gaseous oxidant required for oxidative desulfurization reactions is dissolved in the feedstock upstream of the oxidative desulfurization reactor. Gaseous oxidant is mixed with a generally liquid phase feedstock (and in certain embodiment peroxide precursors are also mixed) in a mixing zone under conditions effective to dissolve the gaseous oxidant in the liquid feedstock. The gaseous oxidant dissolved in the hydrocarbon feedstock provides a gaseous oxidant-enhanced feedstock which is charged to the oxidative desulfurization reaction zone thereby permitting substantially liquid phase operation. | 05-15-2014 |
| 20140190868 | METHOD FOR OPTIMIZING CATALYST LOADING FOR HYDROCRACKING PROCESS - The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. In a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value. | 07-10-2014 |
| 20140197074 | TARGETED DESULFURIZATION PROCESS AND APPARATUS INTEGRATING GAS PHASE OXIDATIVE DESULFURIZATION AND HYDRODESULFURIZATION TO PRODUCE DIESEL FUEL HAVING AN ULTRA-LOW LEVEL OF ORGANOSULFUR COMPOUNDS - Desulfurization of hydrocarbon feeds is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A first fraction contains refractory organosulfur compounds, which boils at or above the target cut point temperature. A second fraction boiling below the target cut point temperature is substantially free of refractory sulfur-containing compounds. The second fraction is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. The first fraction is contacted with gaseous oxidizing agent over an oxidation catalyst having a formula Cu | 07-17-2014 |
| 20140251872 | INTEGRATED DESULFURIZATION AND DENITRIFICATION PROCESS INCLUDING MILD HYDROTREATING OF AROMATIC-LEAN FRACTION AND OXIDATION OF AROMATIC-RICH FRACTION - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur and organonitrogen compounds to produce a hydrocarbon product having low levels of sulfur-containing and nitrogen-containing compounds, is achieved by first subjecting the entire feed to an extraction zone to separate an aromatic-rich fraction containing a substantial amount of the refractory organosulfur and organonitrogen compounds and an aromatic-lean fraction containing a substantial amount of the labile organosulfur and organonitrogen compounds. The aromatic-lean fraction is contacted with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized organosulfur and organonitrogen compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed, producing a stream containing reduced levels of organosulfur and organonitrogen compounds. | 09-11-2014 |
| 20140251873 | INTEGRATED DESULFURIZATION AND DENITRIFICATION PROCESS INCLUDING MILD HYDROTREATING AND OXIDATION OF AROMATIC-RICH HYDROTREATED PRODUCTS - Reduction of sulfur-containing and nitrogen-containing compounds from hydrocarbon feeds is achieved by first contacting the entire feed with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. An extraction zone downstream of the hydrotreating reaction zone separates an aromatic-rich fraction that contains a substantial amount of the remaining refractory organosulfur and organonitrogen compounds. The aromatic-lean fraction is substantially free of organosulfur and organonitrogen compounds, since the non-aromatic organosulfur and organonitrogen compounds were the labile organosulfur and organonitrogen compounds which were initially removed by mild hydrotreating. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized sulfur-containing and nitrogen-containing hydrocarbon compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed. | 09-11-2014 |
| 20140305840 | ASPHALT COMPOSITION - An asphalt composition includes asphalt and spent adsorbent material from a solvent deasphalting unit. The asphalt can comprise asphaltic material obtained from a solvent deasphalting unit, and spent adsorbent material in the asphalt composition was previously utilized in the solvent deasphalting unit. The asphalt composition can also include process reject materials. | 10-16-2014 |
| 20140322092 | CATALYTIC REFORMING SYSTEM FOR PRODUCING REDUCED BENZENE GASOLINE - A catalytic reforming process for producing gasoline of reduced benzene content includes the steps of reforming a reformer feedstock that includes a naphtha stream to produce a gasoline reformate product stream; splitting the gasoline reformate product stream into one or more relatively benzene-rich fractions and one or more relatively benzene-lean fractions; and hydrogenating the one or more relatively benzene-rich fractions to produce a cyclohexane-rich effluent, at least a portion of which cyclohexane-rich effluent is recycled to constitute a portion of the reformer feedstock. | 10-30-2014 |
| 20140360918 | HYDROCRACKING PROCESS WITH FEED/BOTTOMS TREATMENT - A hydrocracking process is provided for treating a first heavy hydrocarbon feedstream and a second heavy hydrocarbon feedstream, in which the first heavy hydrocarbon feedstream contains undesired nitrogen-containing compounds, sulfur-containing compounds and poly-nuclear aromatic compounds. The process includes contacting the first heavy hydrocarbon feedstream with adsorbent material to produce an adsorbent-treated heavy hydrocarbon stream having a reduced content of nitrogen-containing, sulfur-containing compounds and poly-nuclear aromatic compounds. The second heavy hydrocarbon feedstream is combined with the adsorbent-treated heavy hydrocarbon stream. The combined stream is charged to a hydrocracking reaction unit. The hydrocracked effluent is fractioned to recover hydrocracked products and a bottoms stream containing heavy poly-nuclear aromatic compounds. Fractionator bottoms are contacted with adsorbent material (which can be the same or different than the adsorbent material used to treat the initial feed) to produce an adsorbent-treated fractionator bottoms stream having a reduced content of heavy poly-nuclear aromatic compounds, and are recycled to the hydrocracking reaction unit. | 12-11-2014 |
