With Solid Catalyst Or Absorbent Patents (Class 208/213)
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Patent number: 8236172Abstract: A process for reducing the sulfur content of a hydrocarbon stream, including: feeding hydrogen and a hydrocarbon stream including sulfur compounds to a catalytic distillation reactor having one or more hydrodesulfurization reaction zones; concurrently in the catalytic distillation reactor: fractionating the hydrocarbon stream into a heavy fraction and a light fraction; contacting hydrogen and the light fraction to form H2S and a light fraction of reduced sulfur content; recovering the light fraction, H2S, and hydrogen as an overheads; recovering the heavy fraction; heating the overheads to a temperature from 500 to 700° F.; feeding the heated overheads and hydrogen to a high temperature low pressure reactor to form H2S and a reactor effluent of reduced mercaptan content; separating the reactor effluent, H2S, and unreacted hydrogen to form a light hydrocarbon fraction and a fraction including H2S and hydrogen; recycling a portion of the light hydrocarbon fraction to the catalytic distillation reactor.Type: GrantFiled: September 20, 2011Date of Patent: August 7, 2012Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Raymond Chafin
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Patent number: 8236262Abstract: A particulate desulfurization material includes one or more nickel compounds, a zinc oxide support material, and one or more alkali metal compounds wherein the nickel content of the material is in the range 0.3 to 10% by weight and the alkali metal content of the material is in the range 0.2 to 10% by weight. A method of making the desulfurization material includes the steps: (i) contacting a nickel compound with a particulate zinc support material and an alkali metal compound to form an alkali-doped composition, (ii) shaping the alkali-doped composition, and (iii) drying, calcining, and optionally reducing the resulting material. The desulfurization material may be used to desulfurize hydrocarbon gas streams with reduced levels of hydrocarbon hydrogenolysis.Type: GrantFiled: February 25, 2009Date of Patent: August 7, 2012Assignee: Johnson Matthey PLCInventors: Gavin Potter, Gordon Edward Wilson, Norman Macleod, Antonio Chica Lara, Avelino Corma Canos, Yonhy Saavedra Lopez
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Publication number: 20120168350Abstract: An improved process for preparing a slurry catalyst for the upgrade of heavy oil feedstock is provided. The process employs a polar aprotic solvent to mix with the inorganic metal precursor feed to form an oil-dispersible inorganic metal precursor, at a weight ratio of solvent to inorganic metal precursor of 1:1 to 10:1; the oil-dispersible inorganic metal precursor is subsequently sulfided forming the slurry catalyst. In one embodiment, the sulfiding is in-situ upon mixing the oil-dispersible inorganic metal precursor with a hydrocarbon diluent containing a heavy oil feedstock under in-situ sulfiding conditions.Type: ApplicationFiled: December 20, 2011Publication date: July 5, 2012Inventors: Oleg Mironov, Alexander E. Kuperman
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Patent number: 8206575Abstract: A process for upgrading a hydrocarbon feedstock by hydroprocessing using multi-metallic catalysts is disclosed. In one aspect, the invention relates to hydroprocessing of a hydrocarbon feedstock using a catalyst derived from a catalyst precursor of the formula Av[(MP)(OH)x(L)ny]z(MVIBO4), wherein A comprises an alkali metal cation, an ammonium, an organic ammonium or a phosphonium cation, MP is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is an organic, oxygen-containing ligand, MVIB is at least one of Group VIB metals, and the atomic ratio of MVIII:MVIB is between 100:1 and 1:100.Type: GrantFiled: October 28, 2008Date of Patent: June 26, 2012Assignee: Chevron U.S.A. Inc.Inventors: Theodorus Ludovicus Michael Maesen, Alexander E. Kuperman
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Publication number: 20120152805Abstract: A method to upgrade heavy oil feedstock using an ebullated bed reactor and a novel catalyst system is provided. The ebullated bed reactor system includes two different catalyst with different characteristics: an expanded catalyst zone containing particulate catalyst having a particle size of greater than 0.65 mm; and a slurry catalyst having an average particle size ranging from 1 to 300 ?m. The slurry catalyst is provided to the ebullated bed system containing the heavy oil feedstock, and entrained in the upflowing hydrocarbon liquid passing through the ebullated bed reaction zone. The slurry catalyst reduces the formation of sediment and coke precursors in the ebullating bed reactor system. The slurry catalyst is prepared from rework materials, which form a slurry catalyst in-situ upon mixing with the heavy oil feedstock.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Inventors: Julie Chabot, Bruce E. Reynolds, Erin Maris, Shuwu Yang
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Patent number: 8202414Abstract: The invention is directed to a process for the purification of benzene feedstock containing contaminating sulfur compounds, more in particular thiophenic sulfur compounds, said process comprising contacting the benzene feedstock in the presence of hydrogen with a sulfided nickel adsorbent, wherein in said adsorbent part of the nickel is present in the metallic form, and subsequently contacting the said feedstock with a supported metallic copper adsorbent.Type: GrantFiled: March 7, 2006Date of Patent: June 19, 2012Assignee: BASF CorporationInventor: Bernard Hendrik Reesink
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Patent number: 8197674Abstract: This invention relates to thioetherification processes for the removal of mercaptans in charge gas streams. In particular, the invention relates to thioetherification processes for the removal of mercaptans using a catalyst comprising palladium and silver.Type: GrantFiled: September 9, 2008Date of Patent: June 12, 2012Assignee: Lummus Technology Inc.Inventors: Thomas Skourlis, Robert J. Gartside, Robert E. Trubac
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Publication number: 20120115713Abstract: Exemplary embodiments of the present invention relate to the processing of hydrocarbon-containing feedstreams in the presence of an active catalyst component comprising a surface, and a metal oxide film coated on the surface of the active catalyst component. The catalysts and processes of the present invention can improve overall hydrogenation, product conversion, as well as improved resistance to catalytic deactivation due to sulfur and nitrogen compounds present in the hydrocarbon feedstreams.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Chuansheng Bai, Adrienne J. Thornburg, Heather A. Elsen, William G. Borghard, Cody R. Cole
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Publication number: 20120111768Abstract: Exemplary embodiments of the present invention relate to the processing of hydrocarbon-containing feedstreams in the presence of an interstitial metal hydride comprising a surface, with a metal oxide integrally synthesized and providing a coating on the surface of the interstitial metal hydride. The catalysts and processes of the present invention can improve overall hydrogenation, product conversion, as well as sulfur and nitrogen reduction in hydrocarbon feedstreams.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventor: Heather A. Elsen
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Patent number: 8163171Abstract: The invention relates to hydrocarbon fluids having high purity with respect to at least one of sulfur species, nitrogen species, oxygenated species, and unsaturated species, particularly hydrocarbon fluids low in aromatics, a method of making said hydrocarbon fluids, a catalyst for use in said method, an apparatus whereby said method may be practiced, and uses of said fluids.Type: GrantFiled: December 19, 2005Date of Patent: April 24, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Thomas Andrew Gribschaw, Sylvain Hantzer, Stephen John McCarthy, Steven E. Silverberg, Vijay Swarup
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Patent number: 8163169Abstract: A catalyst precursor composition and methods for making such a catalyst precursor are disclosed. The catalyst precursor comprises at least a promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula Av[(MP) (OH)x (L)ny]z (MVIBO4), wherein A is one or more monovalent cationic species, MP is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, MVIB is at least a Group VIB metal, MP:MVIB has an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of ˜450 psig, the catalyst a 700° F.Type: GrantFiled: October 28, 2008Date of Patent: April 24, 2012Assignee: Chevron U.S.A. Inc.Inventors: Theodorus Ludovicus Michael Maesen, Alexander E. Kuperman, Bi-Zeng Zhang, Andrew Rainis
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Publication number: 20120091036Abstract: A fuel processing system and method for a sulfur bearing fuel include a hydrodesulfurization reactor followed by an adsorbent bed for removing sulfur or sulfur containing species from the fuel. In certain embodiments, the adsorbent bed is a ZnO bed. In another embodiment, a fuel processing system and method for a sulfur bearing fuel include a steam reformer, a hydrodesulfurization reactor, and an adsorbent bed.Type: ApplicationFiled: October 13, 2011Publication date: April 19, 2012Inventors: Paul E. George, II, Vincent J. Contini, Greg A. Whyatt, Douglas A. Thornton
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Patent number: 8142646Abstract: The invention relates to a process for the desulfurization of a gasoline fraction with high recovery of olefins and reduced loss of Research Octane Number (RON). A petroleum fraction is contacted with hydrogen and a commercially available hydrodesulfurization catalyst under mild conditions with to remove a first portion of the sulfur present, and is then contacted with an adsorbent for the removal of additional sulfur.Type: GrantFiled: November 24, 2008Date of Patent: March 27, 2012Assignee: Saudi Arabian Oil CompanyInventors: Ki-Hyouk Choi, Ali H. Al-Shareef, Sameer A. Al-Ghamdi
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Patent number: 8128811Abstract: Methods for hydroprocessing of hydrocarbon feedstocks, including hydrodesulfurization and hydrodenitrogenation, using rejuvenated supported metallic catalysts are provided. The supported metallic catalysts comprised of a Group VIII metal, a Group VIB metal, are rejuvenated by a process making use of these metals, an organic complexing agent, and optionally an organic additive. The rejuvenation includes stripping and regeneration of a spent or partially spent catalyst, followed by impregnation with metals and at least one organic compound. The impregnated, regenerated catalysts are dried, calcined, and sulfided.Type: GrantFiled: April 3, 2009Date of Patent: March 6, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Chuansheng Bai, William G. Borghard, William E. Lewis
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Patent number: 8123932Abstract: A process for the conversion of heavy feedstocks using hydrotreatment, distillation or flash, and deasphalting that includes mixing a heavy feedstock with a hydrogenation catalyst and subjecting the thus-formed mixture to a hydrotreatment reactor for reaction with one or more of hydrogen and hydrogen sulfide to form a first product stream; subjecting the first product stream to a distillation or flash to form a plurality of distillate fractions; and recycling heavies from the distillation residue and/or tar by deasphalting in the presence of a solvent; where the hydrotreatment reaction product is pre-separated under high pressure to form light and heavy fractions and sending the heavy fraction to the distillation and/or flash.Type: GrantFiled: December 12, 2003Date of Patent: February 28, 2012Assignees: Eni S.p.A., Snamprogetti S.p.A., Enitechnologie S.p.A.Inventors: Romolo Montanari, Mario Marchionna, Nicoletta Panariti, Alberto Delbianco, Sergio Rosi
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Patent number: 8114273Abstract: An improved hydrotreating process for removing sulfur from distillate boiling range feedstreams. This improved process utilizes a two stage hydrotreating process scheme, each stage associated with an acid gas removal zone wherein one of the stages utilizes a rapid cycle pressure swing adsorption zone to increase the concentration of hydrogen in the process.Type: GrantFiled: January 23, 2006Date of Patent: February 14, 2012Assignee: Exxonmobil Research and Engineering CompanyInventors: Benoit Touffait, Herve Innocenti, Jamil Zaari, Bal K. Kaul, Narasimhan Sundaram
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Patent number: 8088708Abstract: The present invention provides a catalyst precursor substance containing copper, zinc, and aluminum and exhibiting an X-ray diffraction pattern having a broad peak at a specific interplanar spacing d (?). The present invention also provides a method for producing the catalyst precursor substance by mixing a solution containing a copper salt, a zinc salt, and an aluminum salt with a solution containing an alkali metal hydroxide or an alkaline earth metal hydroxide, thereby forming a precipitate. In the present invention, a catalyst is prepared through calcining of the catalyst precursor; the catalyst is employed for water gas shift reaction; and carbon monoxide conversion is carried out by use of the catalyst.Type: GrantFiled: April 2, 2008Date of Patent: January 3, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kozo Takatsu, Yoshimi Kawashima, Satoshi Nakai
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Patent number: 8083933Abstract: A process for removing organic sulfur from a fuel gas stream that further contains light olefins by catalytic hydrodesulfurization to yield a treated fuel gas having an very low concentration of organic sulfur. The effluent of the catalytic hydrodesulfurization reactor may be cooled with a portion thereof being recycled and introduced along with the fuel gas stream that is charged to the hydrodesulfurization reactor. The remaining, unrecycled portion of the effluent may further be treated to remove the hydrogen sulfide that is yielded from by the hydrodesulfurization of the fuel gas stream.Type: GrantFiled: April 10, 2008Date of Patent: December 27, 2011Assignee: Shell Oil CompanyInventor: Gary Lee Ripperger
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Patent number: 8066869Abstract: The invention relates to a treatment process of a sulphur-containing hydrocarbon fraction, comprising the following steps: a) a hydrodesulphurization step of said hydrocarbon fraction to produce a sulphur-depleted effluent, consisting of passing the hydrocarbon fraction mixed with hydrogen over at least one hydrodesulphurization catalyst. b) a step of separation of the partially desulphurized hydrocarbon fraction from the hydrogen introduced in excess, as well as the H2S formed in step a). c) a step of collecting both mercaptans and thiophenic compounds, consisting of placing the partially desulphurized hydrocarbon fraction originating in step b) in contact with an adsorbent comprising at least one element chosen from the group constituted by the elements of groups VIII, IB, IIB and IVA, the adsorbent being used in reduced form in the absence of hydrogen at a temperature above 40° C., the metal content in the reduced form of the adsorbent being above 25% by weight.Type: GrantFiled: November 15, 2007Date of Patent: November 29, 2011Assignee: IFP Energies NouvellesInventors: Alexandre Nicolaos, Florent Picard, Quentin Debuisschert, Annick Pucci
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Patent number: 8067331Abstract: The invention relates to a nickel tungsten bulk catalyst, to a process for the manufacture of said catalyst and to the use of said catalyst for the hydrotreatment, in particular the hydrodesulphurisation and hydrodenitrogenation of hydrocarbon feedstock. The catalyst comprises nickel tungsten metal oxidic particles obtainable by a process comprising forming a slurry of a first solid metal compound comprising Group VNI metal nickel and a second solid metal compound comprising Group VIB metal tungsten in a protic liquid, reacting the first and second solid metal compounds at elevated temperature whereby the first and second solid metal compounds remain at least partly in the solid state during the entire reaction to form the nickel tungsten oxidic bulk catalyst.Type: GrantFiled: October 25, 2006Date of Patent: November 29, 2011Assignee: Albemarle Netherlands B.V.Inventors: Sona Eijsbouts-Spickova, Robertus Gerardus Leliveld, Marinus Bruce Cerfontain, Frans L. Plantenga, Eelco Titus Carel Vogt, Jacobus Nicolaas Louwen, Stuart Leon Soled, Sabato Miseo, Kenneth L. Riley
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Patent number: 8053620Abstract: Processes and systems for removing contaminants from a paraffin containing feedstock are provided that include: providing a paraffin containing feedstock, passing the paraffin containing feedstock to an inlet of a guard bed that includes an adsorbent material, and contacting the paraffin containing feedstock with the adsorbent material in the guard bed to produce a treated paraffin containing feedstock. The processes and systems can also include removing the treated paraffin containing feedstock from an outlet of the guard bed, and passing the treated paraffin containing feedstock to a paraffin separation zone that separates normal paraffins from the treated paraffin containing feedstock.Type: GrantFiled: June 30, 2008Date of Patent: November 8, 2011Assignee: UOP LLCInventors: Stephen W. Sohn, Mark G. Riley, II
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Patent number: 8043495Abstract: A process for reducing the sulfur content of a hydrocarbon stream, including: feeding a hydrocarbon stream including sulfur compounds to a catalytic distillation reactor having one or more hydrodesulfurization reaction zones; feeding hydrogen to the catalytic distillation reactor; concurrently in the catalytic distillation reactor: fractionating the hydrocarbon stream into a heavy fraction and a light fraction; contacting hydrogen and the light fraction to form H2S and a light fraction of reduced sulfur content; recovering the light fraction, H2S, and hydrogen as an overheads; recovering the heavy fraction; heating the overheads to a temperature from 500 to 700° F.Type: GrantFiled: December 19, 2008Date of Patent: October 25, 2011Assignee: Catalytic Distillation TechnologiesInventor: Gary G. Podrebarac
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Patent number: 8034233Abstract: The invention concerns a process for hydrodesulphurizing a gasoline containing less than 0.1% by weight of sulphur derived from a catalytic cracking unit or other conversion units, said process comprising at least one hydrodesulphurization reactor using a bimetallic catalyst operating at a HSV in the range 0.1 h?1 to 20 h?1, a temperature in the range 220° C. to 350° C. and a pressure in the range 0.1 MPa to 5 MPa, and comprising recycling a fraction of the desulphurized gasoline to the inlet to the hydrodesulphurization reactor with a recycle ratio in the range 0.1 to 3 times the flow rate of the gasoline to be desulphurized.Type: GrantFiled: July 17, 2006Date of Patent: October 11, 2011Assignee: IFP Energies NouvellesInventors: Florent Picard, Christophe Bouchy, Nathalie Marchal
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Patent number: 8025791Abstract: Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. At least one of the catalyst includes one or more transition metal sulfides. The crude product is a liquid mixture at 25° C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.Type: GrantFiled: December 16, 2004Date of Patent: September 27, 2011Assignee: Shell Oil CompanyInventors: Scott Lee Wellington, Stanley Nemec Milam
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Patent number: 8002967Abstract: Partial conversion hydrocracking process comprising the steps of (a) hydrotreating a hydrocarbon feedstock with a hydrogenrich gas to produce a hydrotreated effluent stream comprising a liquid/vapor mixture and separating the liquid/vapor mixture into a liquid phase and a vapor phase, and (b) separating the liquid phase into a controlled liquid portion and an excess liquid portion, and (c) combining the vapor phase with the excess liquid portion to form a vapor plus liquid portion, and (d) separating an FCC feed-containing fraction from the controlled liquid portion and simultaneously hydrocracking the vapor plus liquid portion to produce a dieselcontaining fraction, or hydrocracking the controlled liquid portion to produce a diesel-containing fraction and simultaneously separating a FCC feed-containing fraction from the vapor plus liquid portion. The invention also includes an apparatus for carrying out the partial conversion hydrocracking process.Type: GrantFiled: September 12, 2006Date of Patent: August 23, 2011Assignee: Haldor Topsøe A/SInventors: Michael Glenn Hunter, Angelica Hidalgo Vivas, Lars Skov Jensen, Gordon Gongngai Low
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Patent number: 7993513Abstract: The invention concerns a fixed bed process for capturing arsenic and for desulphurizing a hydrocarbon fraction comprising olefins, sulphur and arsenic, said process comprising a step a) for bringing a capture mass into contact with said hydrocarbon fraction in the presence of hydrogen, the ratio between the flow rate of hydrogen and the flow rate of the hydrocarbon fraction being in the range 50 to 800 Nm3/m3, the operating temperature being in the range 200° C. to 400° C., the operating pressure being in the range 0.2 to 5 MPa. The capture mass comprises molybdenum in a sulphurized form, nickel in a sulphurized form and at least one porous support selected from the group constituted by aluminas, silica, silica-aluminas, titanium oxide and magnesium oxide. The nickel content is in the range 10% to 28% by weight and the molybdenum content is in the range 0.3% to 2.1% by weight.Type: GrantFiled: November 13, 2008Date of Patent: August 9, 2011Assignee: IFP Energies NouvellesInventors: Florent Picard, Vincent Coupard, Elodie Devers
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Patent number: 7988848Abstract: This invention relates to a process for activating a hydroprocessing catalyst and the use of activated catalyst for hydroprocessing. More particularly, hydroprocessing catalysts are activated in the presence of carbon monoxide. The catalysts that have been activated by CO treatment have improved activity.Type: GrantFiled: March 22, 2006Date of Patent: August 2, 2011Assignee: Exxonmobil Research and Engineering CompanyInventors: Garland B. Brignac, Andrew C. Moreland, Thomas R. Halbert
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Patent number: 7972499Abstract: The instant invention is directed to a process employing slurry catalyst compositions in the upgrading of heavy oils. The slurry catalyst composition is not permitted to settle, which would result in possible deactivation. The slurry is recycled to an upgrading reactor for repeated use and products require no further separation procedures for catalyst removal.Type: GrantFiled: September 18, 2008Date of Patent: July 5, 2011Assignee: Chevron U.S.A. Inc.Inventors: Kaidong Chen, Julie Chabot
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Patent number: 7964528Abstract: The invention relates to a process for the preparation of a shaped bulk catalyst comprising metal oxide particles comprising one or more Group VIII metals and two or more Group VIB metals which process comprises the steps of providing first metal oxidic particles comprising one or more first Group VIII metals and one or more first Group VIB metals, providing separately prepared second metal oxidic particles comprising one or more second Group VIII metals and one or more second Group VIB metals, wherein the composition of Group VIB and Group VIII metals in the first and second metal oxidic particles are different, combining the first and second metal oxidic particles before and/or during shaping and shaping the combined first and second metal oxide particles to form a shaped bulk catalyst. The invention further relates to the shaped bulk catalyst obtainable with the process In sulphided or unsulphided form and the use thereof in hydroprocessing.Type: GrantFiled: October 25, 2006Date of Patent: June 21, 2011Assignee: Albemarle Netherlands, B.V.Inventors: Sona Eijsbouts-Spickova, Robertus Gerardus Leliveld, Johannes Cornelis Sitters, Marinus Bruce Cerfontain, Bob Gerardus Oogjen
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Patent number: 7959797Abstract: Contact of a crude feed with one or more catalysts containing a transition metal sulfide produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25° C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed. In some embodiments, gas is produced during contact with one or more catalysts and the crude feed.Type: GrantFiled: January 27, 2009Date of Patent: June 14, 2011Assignee: Shell Oil CompanyInventors: Scott Lee Wellington, Thomas Fairchild Brownscombe, Stanley Nemec Milam
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Patent number: 7959793Abstract: A process for selective hydrogenation of C3/C4/C5/C6/C7 and LCN, hydro-isomerization of olefins, benzene saturation and hydrodesulfurization of Gasoline, Kerosene and Diesel together with aromatic saturation of LCO is being provided so as to provide optimum technology at low cost with unique configuration. The technology is user friendly and uses conventional catalyst. These configurations cover both the options of installing the bulk catalyst in the distillation column with chimneys trays, hence essentially all the reaction takes place in the liquid phase in single or multiple beds or with fixed bed down flow or up flow reactor configuration. The configurations shown in the figures depicts that the fixed bed reactors are integrated with the Distillation Column and this art helps in lowering the Capital costs and the reactors are operating in single phase or two-phase conditions.Type: GrantFiled: September 27, 2006Date of Patent: June 14, 2011Inventor: Amarjit Singh Bakshi
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Patent number: 7959795Abstract: The distillate catalytic hydrodesulfurization of hydrocarbon fuels wherein the optimum hydrogen treat gas rate to maximize desulfurization is determined and introduced into the reaction zone to maintain a controlled amount of hydrogen at the surface of the catalyst during hydrodesulfurization.Type: GrantFiled: July 22, 2008Date of Patent: June 14, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Teh C. Ho, Garland B. Brignac, Zhiguo Hou, Michael C. Kerby, Tahmid I. Mizan, William E. Lewis
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Patent number: 7959794Abstract: The invention concerns a facility and a process for hydrodesulphurizing gas oil or vacuum distillate comprising at least one hydrodesulphurization reaction section, at least one stripping section and at least one fractionation section in which the fractionation section comprises at least one fractionation column operated under moderate vacuum.Type: GrantFiled: September 9, 2002Date of Patent: June 14, 2011Assignee: IFPInventors: Renaud Galeazzi, Alain Dunet
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Patent number: 7955401Abstract: Methods for producing C10-C30 hydrocarbons from fatty materials, such as triglyceride compounds, are provided. Hydrocarbon compounds, particularly those boiling in the temperature range of between about 80° F. to about 1000° F., are produced by contacting a fatty material with at least one catalyst comprising cobalt and molybdenum on a zeolite support under hydrotreating conditions. Additional hydrotreating catalysts may also be used to further improve the properties of the hydrocarbon product.Type: GrantFiled: July 16, 2007Date of Patent: June 7, 2011Assignee: ConocoPhillips CompanyInventors: Dhananjay R. Ghonasgi, Edward L. Sughrue, II, Jianhua Yao, Xiaochun Xu
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Publication number: 20110119990Abstract: The present invention relates to the processing of hydrocarbon-containing feedstreams in the presence of an interstitial metal hydride comprised of at least one chemical element selected from Groups 3-11 (including the lanthanides, atomic numbers 58 to 71), and at least one chemical element selected from Groups 13-15 from the IUPAC Periodic Table of Elements. These interstitial metal hydrides, their catalysts and processes using these interstitial metal hydrides and catalysts of the present invention improve overall hydrogenation, product conversion, as well as sulfur reduction in hydrocarbon feedstreams.Type: ApplicationFiled: November 17, 2010Publication date: May 26, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANHYInventors: Pallassana S. Venkataraman, Gordon F. Stuntz, Jonathan M. McConnachie, Faiz Pourarian
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Publication number: 20110119992Abstract: The present invention relates to novel interstitial metal hydrides and catalyst containing interstitial metal hydrides that are resistant to oxidation and resultant loss of catalytic activity. The processes of the present invention include use of these improved, oxidation resistant interstitial metal hydride compositions for improved overall hydrogenation, product conversion, as well as sulfur reduction in hydrocarbon feedstreams.Type: ApplicationFiled: November 17, 2010Publication date: May 26, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Faiz Pourarian, Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Gordon F. Stuntz, Jonathan M. McConnachie, Heather A. Elsen, Patricia A. Bielenberg
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Patent number: 7938955Abstract: Provided are a method for producing a super-low sulfur gas oil blending component or a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm, under relatively mild conditions, without greatly increasing the hydrogen consumption and without remarkably decreasing the aromatic content; and a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm which exhibits a high heating value, is excellent in fuel economy and output power, and is free from an adverse effect on a sealing rubber member or the like used in the fuel injection system and thus does not cause the leakage of a fuel. A method for producing a super-low sulfur gas oil blending component or a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm is also disclosed.Type: GrantFiled: December 21, 2005Date of Patent: May 10, 2011Assignee: Japan Energy CorporationInventors: Yasuhiro Araki, Katsuaki Ishida
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Patent number: 7935314Abstract: An apparatus for mixing regenerated and carbonized catalyst involves obstructing upward flow of catalyst by one or more baffles between a catalyst inlet and a feed distributor. Each catalyst stream may be passed to opposite sides of a riser. Baffles obstruct upward flow to effect mixing of regenerated and carbonized catalyst to obtain a more uniform temperature and catalyst mixture before contacting the feed.Type: GrantFiled: September 30, 2008Date of Patent: May 3, 2011Assignee: UOP LLCInventors: Keith A. Couch, Kelly D. Seibert, Robert L. Mehlberg, Daniel R. Johnson
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Patent number: 7927480Abstract: A process for the desulfurization of a fluid catalytically cracked naphtha wherein the valuable olefins are retained and recombinant mercaptans are prevented from forming, resulting in a low sulfur naphtha. Embodiments disclosed herein may allow for more flexibility in varying the end point of the naphtha used in gasoline blending.Type: GrantFiled: January 29, 2008Date of Patent: April 19, 2011Assignee: Catalytic Distillation TechnologiesInventor: Gary G. Podrebarac
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Patent number: 7922894Abstract: The present invention pertains to a process for hydroprocessing a heavy hydrocarbon oil, comprising contacting a heavy hydrocarbon oil in the presence of hydrogen with a mixture of hydroprocessing catalyst I and hydroprocessing catalyst II. The process of the invention combines high contaminant removal with high conversion, low sediment formation, and high process flexibility.Type: GrantFiled: December 8, 2003Date of Patent: April 12, 2011Assignees: Albemarle Netherlands, B.V., Nippon Ketjen Co., Ltd.Inventors: Frans Lodewijk Plantenga, Katsuhisa Fujita, Satoshi Abe
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Publication number: 20110068047Abstract: This invention relates to methods and units for mitigation of carbon oxides during hydrotreating hydrocarbons including mineral oil based streams and biological oil based streams. A hydrotreating unit includes a first hydrotreating reactor for receiving a mineral oil based hydrocarbon stream and forming a first hydrotreated product stream, and a second hydrotreating reactor for receiving a biological oil based hydrocarbon stream and forming a second hydrotreated product stream.Type: ApplicationFiled: September 22, 2009Publication date: March 24, 2011Applicant: BP CORPORATION NORTH AMERICA INC.Inventors: Nicholas J. Gudde, John W. Shabaker
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Patent number: 7875167Abstract: A low hydrogen partial pressure process for desulfurizing naphtha in the presence of a hydrodesulfurization catalyst which catalyst is selective for suppressing hydrogenation of olefins and in the presence. This invention also relates to the use of optimum metals loading for achieving a high level of hydrodesulfurization with a low level of olefin saturation.Type: GrantFiled: December 31, 2007Date of Patent: January 25, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Garland Brignac, Thomas R. Halbert, John P. Greeley
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Patent number: 7862708Abstract: The present invention relates to a process for desulfurizing bitumen and other heavy oils such as low API gravity, high viscosity crudes, tar sands bitumen, or shale oils with alkali metal compounds under conditions to promote in-situ regeneration of the alkali metal compounds. The present invention employs the use of superheated water and hydrogen under conditions to improve the desulfurization and alkali metal hydroxide regeneration kinetics at sub-critical temperatures.Type: GrantFiled: October 14, 2008Date of Patent: January 4, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, Rustom M. Billimoria, David W. Savage, Roby Bearden, Jr.
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Publication number: 20100326889Abstract: A method of restoring catalytic activity to a spent hydroprocessing catalyst that has a first carbon concentration. The concentration of carbon on the spent hydroprocessing catalyst is reduced to provide a carbon-reduced catalyst having a second carbon concentration that is less than the first carbon concentration. The carbon-reduced catalyst is exposed to a solution, comprising a chelating agent and a solvent, for an aging time period sufficient to provide for a restored catalytic activity thereby resulting in an aged catalyst having incorporated therein the chelating agent and the solvent. The aged catalyst is exposed to conditions, including a drying temperature, so as to remove from the aged catalyst a portion of the solvent without removing a significant portion of the chelating agent from the aged catalyst thereby resulting in a dried aged catalyst. The dried aged catalyst is then sulfur treated to thereby provide a restored catalyst.Type: ApplicationFiled: September 9, 2010Publication date: December 30, 2010Inventors: Josiane Marie-Rose GINESTRA, James Dallas Seamans, Kenneth Scott Lee
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Publication number: 20100314286Abstract: A method and a product made by treating a sulfur-containing hydrocarbon heavy feed, e.g., heavy crude asphaltene reduction is disclosed herein. The method comprises the steps of: mixing the sulfur-containing hydrocarbon heavy feed with a hydrogen donor solvent and an acidified silica to form a mixture and oxidizing the sulfur in the mixture at a temperature between 50° C. and 210° C., wherein the oxidation lowers the amount sulfur in the sulfur-containing hydrocarbon heavy feed by at least 90%.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Karina Castillo, Jason Parsons, Russell R. Chianelli
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Publication number: 20100294699Abstract: Herein disclosed is a method for hydrodesulfurization, hydrodenitrogenation, hydrofinishing, amine production or a combination thereof. The method comprises forming a dispersion comprising hydrogen-containing gas bubbles dispersed in a liquid feedstock, wherein the bubbles have a mean diameter of less than about 5 ?m and wherein the feedstock comprises a mixture of petroleum-derived hydrocarbons and a naturally derived renewable oil. The feedstock comprises hydrocarbons selected from the group consisting of liquid natural gas, crude oil, crude oil fractions, gasoline, diesel, naphtha, kerosene, jet fuel, fuel oils, and combinations thereof. The method further comprises contacting the dispersion with a catalyst that is active for hydrodesulfurization, hydrodenitrogenation, hydrofinishing, amine production, or a combination thereof. The catalyst comprises homogeneous catalysts and heterogeneous catalysts. The catalyst may be utilized in fixed-bed or slurry applications.Type: ApplicationFiled: January 18, 2010Publication date: November 25, 2010Applicant: H R D CORPORATIONInventors: Abbas HASSAN, Rayford G. ANTHONY, Gregory G. BORSINGER, Aziz HASSAN
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Patent number: 7837860Abstract: A process for the production of low sulfur diesel and high octane naphtha. Separate high pressure vapor liquid separators serve to maintain and isolate the high octane naphtha produced in the hydrocracking zone thereby maximizing the value of the hydrocarbon streams produced.Type: GrantFiled: December 12, 2005Date of Patent: November 23, 2010Assignee: UOP LLCInventors: Richard K. Hoehn, Srinivasa G. Varadarajan, Douglas W. Kocher-Cowan
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Patent number: 7837863Abstract: Contact of a crude feed with one or more catalysts produces a total product that include a crude product. The crude feed has a total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of at least 0.00001 grams per gram of crude feed. At least one of the catalysts includes vanadium. The crude product is a liquid mixture at 25° C. and 0.101 MPa and has a total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of at most 90% of the total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of the crude feed. One or more other properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.Type: GrantFiled: December 16, 2004Date of Patent: November 23, 2010Assignee: Shell Oil CompanyInventors: Opinder Kishan Bhan, Scott Lee Wellington
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Patent number: 7837862Abstract: Fuel is desulfurized with a rapid cycle desulfurization-regeneration method and apparatus. Regeneratable mass separating agents, including metals supported on high surface area materials, are used in a plurality of beds that are rotated into, through, and out of a desulfurization series and a regeneration series by valves and plumbing, which can include a rotary valve apparatus.Type: GrantFiled: March 4, 2008Date of Patent: November 23, 2010Assignee: Protonex Technology, LLCInventors: Joseph C. Poshusta, Jerry L. Martin
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Patent number: 7815792Abstract: A process and catalyst for the selective hydrodesulfurization of a naphtha containing olefins. The process produces a naphtha stream having a reduced concentration of sulfur while maintaining the maximum concentration of olefins.Type: GrantFiled: October 26, 2009Date of Patent: October 19, 2010Assignee: UOP LLCInventors: Lorenz J. Bauer, Suheil F. Abdo, Laura E. Leonard, Peter Kokayeff