Catalytic Patents (Class 208/143)
-
Publication number: 20040232049Abstract: A process for hydrogenating unsaturations in petrochemical feedstocks, the process comprising contacting the petrochemical feedstock, including at least one component having unsaturations, and hydrogen with a catalyst comprising at least one Group Ia, Ib, IIb, VIb, VIIb or VIII metal on a support of a crystalline calcium silicate having a surface area of at least 30 m2/g, the support being in the form of substantially spherical particles having a mean diameter of from 10 to 200 microns and pores in the particles having a diameter of from 100 to 2000 Angstroms, at a temperature of from 0 to 550° C. and a pressure of from 3 to 150 barg.Type: ApplicationFiled: July 6, 2004Publication date: November 25, 2004Inventors: Jean-Pierre Dath, Walter Vermeiren
-
Patent number: 6822128Abstract: A method is disclosed for maintaining a volumetric gas to liquid ratio in a segmented gas/liquid flow along a reactor of monolithic catalyst beds in series. The present invention includes the steps of: initiating the segmented gas/liquid flow at a first end of the reactor by introducing feed liquid and feed gas both at a predetermined volume and a predetermined flow rate; injecting an additional amount of gas at least once into any of the spaces between catalyst beds; and combining the segments of the segmented gas/liquid flow at a second end of the reactor. The injection of gas is controlled such that the segmented gas/liquid flow can be maintained near or at the Taylor regime.Type: GrantFiled: December 20, 2001Date of Patent: November 23, 2004Assignee: Corning IncorporatedInventors: Didier Letourneur, Charles M. Sorensen, Jr., Pierre Woehl
-
Publication number: 20040182744Abstract: A family of crystalline aluminosilicate zeolites designated UZM-8HS and derived from UZM-8 have been synthesized. The aluminum content of the UZM-8HS is lower than that of the starting UZM-8 thus changing its ion exchange capacity and acidity.Type: ApplicationFiled: March 21, 2003Publication date: September 23, 2004Inventors: Deng Yang Jan, Jaime G. Moscoso, Susan G. Koster, Lisa M. Rohde, Gregory J. Lewis, Mark A. Miller, R. Lyle Patton, Stephen T. Wilson
-
Patent number: 6793803Abstract: The present invention relates to the use of crystalline zeolite SSZ-54 as a catalyst in a process for dewaxing hydrocarbon feedstocks.Type: GrantFiled: June 28, 2002Date of Patent: September 21, 2004Assignee: Chevron U.S.A. Inc.Inventor: Richard N. Reynolds, Jr.
-
Publication number: 20040167363Abstract: Process for obtaining a hydrocarbon fraction that can be used as a feedstock of an etherification unit and that contains a small amount of diene compounds, nitrogen-containing compounds and sulfur-containing compounds, starting from an initial hydrocarbon feedstock that comprises a mixture of olefins, dienes, and nitrites as well as sulfur-containing compounds, whereby said process comprises at least the following successive stages:Type: ApplicationFiled: January 22, 2004Publication date: August 26, 2004Inventors: Florent Picard, Alain Forestiere, Julia Magne-Drisch, Nathalie Marchal-George
-
Publication number: 20040167370Abstract: A family of crystalline aluminosilicate zeolites designated UZM-5HS and derived from UZM-5 have been synthesized. The aluminum content of the UZM-5HS is lower than that of the starting UZM-5 thus changing its ion exchange capacity and acidity.Type: ApplicationFiled: September 20, 2002Publication date: August 26, 2004Inventors: Deng-Yang Jan, Jaime G. Moscoso, Gregory J. Lewis, Michael G. Gatter, Beckay J. Mezza, Susan C. Koster
-
Publication number: 20040164000Abstract: A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50% by weight, with substantially all branched paraffins being monomethyl end-chain branched paraffins. At least one non-linear paraffin isomer, which may be a monomethyl paraffin isomer, may be separated from the hydrocarbon products through distillation to provide an n-paraffin product having an n-paraffin content percentage by weight of the n-paraffin product that is greater than the initial n-paraffin content.Type: ApplicationFiled: April 30, 2003Publication date: August 26, 2004Inventor: Armen N. Abazajian
-
Publication number: 20040134836Abstract: In a vertical reactor vessel through which vapor and liquid flow concurrently, the fluids pass vertically through a horizontal mixing box having internal flow baffles that form at least one mixing orifice through which the process stream flows at high velocity. In the mixing orifices the liquid is dispersed to obtain a large area for interphase heat and mass transfer. Each mixing orifice is followed by structure that divides the process stream into two lower velocity streams, whereby turbulent flow conditions are generated, and wherein hold-up time is provided to allow for heat and mass transfer. The fluids exit the mixing box through an outlet opening in a bottom wall of the mixing box. An impingement plate is located below this outlet opening to spread the liquid and decrease the velocity of the exiting jet. The outlet stream from the mixer is equilibrated regarding temperature and chemical composition.Type: ApplicationFiled: November 10, 2003Publication date: July 15, 2004Inventor: Morten Muller
-
Patent number: 6755963Abstract: This invention provides a process for hydrotreating hydrocarbon resins, which process comprises contacting a feedstock comprising a hydrocarbon resin or rosin, under suitable hydrotreating conditions, with a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least two Group VIB metals and wherein the ratio of Group VIB metal to Group VIII non-noble metal is from about 10:1 to about 1:10. The process according to the invention can achieve increased hydrocarbon resin productivity through increase in throughput volumes and effective catalyst lifetimes. The process of the invention is desirably practiced with a bulk catalyst consisting of only the combination of the metal species with the active metal components. The absence of carrier substrates largely removes the possibility of halogen accumulation on substrate surfaces that, in turn, can acidify metal catalysts such that additional, progressive cracking of the hydrocarbon resin molecules occurs.Type: GrantFiled: October 1, 2002Date of Patent: June 29, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jerry L. Haluska, Kenneth Lloyd Riley
-
Patent number: 6726836Abstract: A fuel processing method is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply which is used to power a fuel cell power plant in a mobile environment, such as an automobile, bus, truck, boat, or the like; or in a stationary environment. The power plant hydrogen fuel source can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, thiophenes and the like. The undiluted hydrocarbon fuel supply is passed through a nickel reactant desulfurizer bed wherein essentially all of the sulfur in the organic sulfur compounds reacts with the nickel reactant, and is converted to nickel sulfide, while the now desulfurized hydrocarbon fuel supply continues through the remainder of the fuel processing system. The method involves adding hydrogen to the fuel stream prior to the desulfurizing step. The method can be used to desulfurize either a liquid or a gaseous fuel stream.Type: GrantFiled: September 1, 2000Date of Patent: April 27, 2004Assignee: UTC Fuel Cells, LLCInventors: Roger R. Lesieur, Brian A. Cocolicchio, Antonio M. Vincitore
-
Patent number: 6723229Abstract: A four stage process for producing high quality white oils, particularly food or medicinal grade mineral oils from mineral oil distillates. The first reaction stage employs a sulfur resistant hydrotreating catalyst and produces a product suitable for use as a high quality lubricating oil base stock. The second reaction stage employs a hydrogenation/hydrodesulfurization catalyst. The third stage employs a reduced metal sulfur sorbent producing a product stream which is low in aromatics and which has substantially “nil” sulfur. The final reaction stage employs a selective hydrogenation catalyst that produces a product suitable as a food or medicinal grade white oil.Type: GrantFiled: February 27, 2002Date of Patent: April 20, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Sylvain S. Hantzer, Jean Willem Beeckman, Stephen J. McCarthy, Arthur Paul Werner
-
Publication number: 20040065587Abstract: A process to prepare a base oil having a saturates content of more than 90 wt %, a sulphur content of less than 0.Type: ApplicationFiled: October 16, 2003Publication date: April 8, 2004Inventors: Marc Collin, Eric Duprey
-
Publication number: 20040055936Abstract: A hydrotreating catalyst that contains at least one element of group VIB and/or group VIII of the periodic table and optionally phosphorus and/or silicon, with an organic compound as an additive that contains at least one nitrogen atom, is used for the transformation of hydrocarbon-containing fractions, in particular the hydrodesulfurization, the hydrodenitrification, the hydrodemetallization, the hydrogenation of various petroleum fractions, such as residues, vacuum distillates, gas oils and gasolines, and the hydroconversion of vacuum distillates.Type: ApplicationFiled: July 3, 2003Publication date: March 25, 2004Applicant: Institut Francais du PetroleInventors: Fabrice Diehl, Christophe Bouchy, Tivadar Cseri, Slavik Kasztelan
-
Patent number: 6679986Abstract: A catalytic support includes a substantial quantity of at least one SVI group Periodic Table metal oxide in which is incorporated silica. The mass ratio between the quantity of SVI group metal oxide and the quantity of silica it contains ranges between 5 and 70, the SVI group metal oxide is in crystalline form, and the specific surface of the support is greater than or equal to 160 m2/g.Type: GrantFiled: May 16, 2000Date of Patent: January 20, 2004Assignee: Total Raffinage Distribution S.A.Inventors: Pedro Da Silva, Marc Bisson, Alain Milan, Sebastien Decker, Joeri Denayer
-
Publication number: 20030221993Abstract: A method for increasing the operational life-time of a pyrolysis gasoline hydrotreating process using a supported Group VIII metal catalyst by employing a catalyst having a significantly increased total surface area.Type: ApplicationFiled: May 30, 2002Publication date: December 4, 2003Inventor: Mark P. Kaminsky
-
Patent number: 6652738Abstract: The invention pertains to a process for the hydroprocessing of a hydrocarbon feedstock wherein said feedstock is contacted at hydroprocessing conditions with a catalyst composition which comprises bulk catalyst particles which comprise at least one Group VIII non-noble metal and at least two Group VIB metals. The Group VIII and Group VIB metals comprise from about 50 wt. % to about 100 wt. %, calculated as oxides, of the total weight of the bulk catalyst particles. The metals are present in the catalyst composition in their oxidic and/or sulfidic state. The catalyst composition has an X-ray diffraction pattern in which the characteristic full width at half maximum does not exceed 2.5° when the Group VIB metals are molybdenum, tungsten, and, optionally, chromium, or does not exceed 4.0° when the Group VIB metals are molybdenum and chromium or tungsten and chromium.Type: GrantFiled: January 16, 2003Date of Patent: November 25, 2003Assignee: Akzo Nobel N.V.Inventors: Sonja Eijsbouts, Bob Gerardus Oogjen, Harmannus Willem Homan Free, Marinus Bruce Cerfontain, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo
-
Patent number: 6645371Abstract: A process is described that can limit pressure drops during a catalytic hydrotreatment process carried out in a fixed bed reactor. The liquid feed and gaseous reactant are injected into the reactor either side of the bed and flow as a counter-current. Pressure drops are limited by homogeneously mixing solid catalytic and/or inert particles of different diameters in the bed.Type: GrantFiled: December 20, 2001Date of Patent: November 11, 2003Assignee: Institut Francais Du PetroleInventors: Daniel Vuillemot, Laurence Carpot, Thierry Chapus, Philippe Rocher, Frédéric Morel
-
Publication number: 20030201206Abstract: Pillared trioctahedral micas and/or vermiculites are prepared. The process includes a conditioning operation for the partial reduction of the layer charge through an accelerated weathering process, and also includes a pillaring operation.Type: ApplicationFiled: March 8, 2001Publication date: October 30, 2003Inventors: Georges Poncelet, Francisco Del Rey
-
Patent number: 6638418Abstract: A dual recycle catalytic hydrocracking process for the production of ultra low sulfur diesel while simultaneously processing two feedstocks. One preferred feedstock boils in the temperature range of diesel and the second preferred feedstock boils in the temperature range above that of diesel.Type: GrantFiled: November 7, 2001Date of Patent: October 28, 2003Assignee: UOP LLCInventors: Tom N. Kalnes, Vasant P. Thakkar, Richard K. Hoehn
-
Publication number: 20030173252Abstract: The invention concerns a catalyst for the hydrogenation, hydroisomerisation, hydrocracking and/or hydrodesulfurisation, of hydrocarbon feedstocks, said catalyst consisting of a substantially binder free bead type support material obtained through a sol-gel method, and a catalytically active component selected from precious metals, the support comprising 5 to 50 wt. % of at least one molecular sieve material and 50 to 95 wt. % of silica-alumina.Type: ApplicationFiled: February 5, 2003Publication date: September 18, 2003Inventor: Marius Vaarkamp
-
Patent number: 6620313Abstract: Hydroconversion process of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni—Mo—W.Type: GrantFiled: August 22, 2001Date of Patent: September 16, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Richard Alan Demmin, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo
-
Publication number: 20030159974Abstract: The invention relates to a process for conversion of hydrocarbons in the presence of at least one catalyst with controlled acidity, characterized in that the level of activity of said catalyst in isomerization of the cyclohexane is less than 0.10 and/or in that the ratio of toluene hydrogenation activity to the cyclohexane isomerization activity is greater than 10.Type: ApplicationFiled: February 24, 2003Publication date: August 28, 2003Applicant: Institut Francais du PetroleInventors: Virginie Harle, Stephane Kressmann, Isabelle Guibard, Slavik Kasztelan, Frederic Morel
-
Publication number: 20030150778Abstract: This invention provides a process for hydrotreating hydrocarbon resins, which process comprises contacting a feedstock comprising a hydrocarbon resin or rosin, under suitable hydrotreating conditions, with a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least two Group VIB metals and wherein the ratio of Group VIB metal to Group VIII non-noble metal is from about 10:1 to about 1:10. The process accord invention can achieve increased hydrocarbon resin productivity through increase in throughput volumes and effective catalyst lifetimes. The process of the invention is desirably practiced with a bulk catalyst consisting of only the combination of the metal species with the active metal components. The absence of carrier substrates largely removes the possibility of halogen accumulation on substrate surfaces that, in turn, can acidify metal catalysts such that additional, progressive cracking of the hydrocarbon resin molecules occurs.Type: ApplicationFiled: October 1, 2002Publication date: August 14, 2003Inventors: Jerry L. Haluska, Kenneth Lloyd Riley
-
Publication number: 20030149317Abstract: Catalysts and composite materials comprised of catalytically active materials intercalated with alkali metals and/or optionally coated on alkali metals or combinations of alkali and alkali earth metals are disclosed. Also disclosed are methods for enhancing reactions between hydrogen and organic materials by reacting said catalysts with solvents where such reactions generate a portion of the hydrogen and heat necessary to cause the desired reaction between an organic material and hydrogen and also act to fracture said catalytically active material into higher surface area particles with enhanced catalytic ability. Said catalysts may be dispersed in immiscible aprotic solvents to enhance transportation and safety considerations prior to use.Type: ApplicationFiled: February 4, 2003Publication date: August 7, 2003Inventor: David Deck Rendina
-
Publication number: 20030149318Abstract: Process to prepare a water-white lubricating base oil having a saturates content of more than 90 wt %, a sulphur content of less than 0.03 wt % and a viscosity index of between 80-120 by subjecting a non-water-white hydrocarbon feed having a lower saturates content than the desired saturates content to a hydrogenation step, the hydrogenation step comprising contacting the feed with hydrogen in the presence of a hydrogenation catalyst, wherein the contacting is performed in two steps: (a) contacting the hydrocarbon feed with hydrogen in the presence of a hydrogenation catalyst at a temperature of above 300° C. and at a WSHV of between 0.3 and 2 kg of oil per litre of catalyst per hour, and (b) contacting the intermediate product obtained in step (a) with hydrogen in the presence of a hydrogenation catalyst at a temperature of below 280° C.Type: ApplicationFiled: January 17, 2003Publication date: August 7, 2003Inventors: Gerard Benard, Patrick Moureaux
-
Publication number: 20030134744Abstract: A process for preparation of a selective hydrogenation catalyst including preparing a catalyst material containing palladium and preferably additional additive materials, prereducing the palladium material and the additional additive materials, storing the prereduced catalyst under a non-oxidizing material and distributing the prereduced catalyst in a shipping container under the non-oxidizing material to a customer for use in a selective hydrogenation reaction.Type: ApplicationFiled: December 19, 2001Publication date: July 17, 2003Applicant: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Jennifer A. Perkins, Andrzej Rokicki, James E. Fried
-
Publication number: 20030102254Abstract: The invention pertains to a process for the hydroprocessing of a hydrocarbon feedstock wherein said feedstock is contacted at hydroprocessing conditions with a catalyst composition which comprises bulk catalyst particles which comprise at least one Group VIII non-noble metal and at least two Group VIB metals. The Group VIII and Group VIB metals comprise from about 50 wt. % to about 100 wt. %, calculated as oxides, of the total weight of the bulk catalyst particles. The metals are present in the catalyst composition in their oxidic and/or sulfidic state. The catalyst composition has an X-ray diffraction pattern in which the characteristic full width at half maximum does not exceed 2.5° when the Group VIB metals are molybdenum, tungsten, and, optionally, chromium, or does not exceed 4.0° when the Group VIB metals are molybdenum and chromium or tungsten and chromium.Type: ApplicationFiled: January 16, 2003Publication date: June 5, 2003Inventors: Sonja Eijsbouts, Bob Gerardus Oogjen, Harmannus Willem Homan Free, Marinus Bruce Cerfontain, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo
-
Patent number: 6569313Abstract: A process for upgrading oil feedstock wherein the feedstock is hydrotreated, hydrocracked, and flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then extracted, dewaxed, and cascaded to a hydrofinishing step, where it is contacted with a catalyst having a metal hydrogenation function in order to produce lubricant products.Type: GrantFiled: November 13, 2000Date of Patent: May 27, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael B. Carroll, Gary P. Schleicher, Joseph P. Boyle
-
Patent number: 6569312Abstract: A process for upgrading oil feedstock wherein the feedstock is hydrocracked, flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then dewaxed under high pressure by a medium pore molecular sieve. The dewaxed material is then cascaded to a hydrofinishing step, where it is contacted with an aromatics saturation catalyst having a metal hydrogenation function in order to produce, after appropriate flashing and distillation, lubricant products having high Viscosity Index, low aromatics content, low volatility and excellent stability to light in the presence of oxygen.Type: GrantFiled: November 13, 2000Date of Patent: May 27, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael B. Carroll, Fritz A. Smith, John C. Bixel
-
Patent number: 6537442Abstract: The invention pertains to a cogel comprising oxidic compounds of one or more trivalent metallic elements selected from the group of aluminum, borium, gallium, chromium, iron, cobalt, manganese, vanadium, molybdenum, tungsten, indium, rhodium, scandium, or mixtures thereof, oxidic compounds of one or more tetravalent metallic elements selected from the group of silicon, titanium, germanium, or mixtures thereof and oxidic compounds of one or more divalent metallic elements with at least one divalent metallic element not selected from Group VIII non-noble metallic elements, wherein a) the cogel is essentially X-ray amorphous apart from saponite, if present; b) the saponite content CA of the cogel is less than 60%; c) the cogel has a surface area of at least 400 m2/g; d) the cogel has a cation-exchange capacity of at least 0.5 wt %; and e) the total of sodium and potassium contained in the cogel amounts to less than 0.5 wt %, based on the total weight of the cogel.Type: GrantFiled: February 20, 2001Date of Patent: March 25, 2003Assignee: Akzo Nobel N.V.Inventors: Jan Nieman, Stephan Janbroers
-
Publication number: 20030052043Abstract: A channel geometry for monolith and honeycomb catalysts used in two- and three-phase catalytic reactions or gas-liquid mass transfer processes features a desirable channel shape that enhances liquid/structure contacting efficiency and gas/liquid catalytic reaction activity. Gas/liquid catalytic hydrogenation or hydrotreating processes carried with these catalysts use efficient liquid/channel surface contacting and mass transfer of reactants from bulk liquid onto the channel surface to achieve high conversion efficiencies.Type: ApplicationFiled: November 13, 2001Publication date: March 20, 2003Inventors: Achim K. Heibel, Wei Liu, Matthew C. Morse
-
Patent number: 6531516Abstract: An integrated gas conversion and bitumen production process utilizes steam and light hydrocarbons produced from a natural gas fed gas conversion process, to stimulate the bitumen production and dilute it for transportation by pipeline. Hydrogen for hydroconversion of the bitumen and hydroisomerization of gas conversion hydrocarbons may be produced from part of the synthesis gas generated from the natural gas. The bitumen diluent is preferably naphtha produced by the gas conversion and the diluted bitumen is pipelined to a bitumen upgrading facility.Type: GrantFiled: March 27, 2001Date of Patent: March 11, 2003Assignee: ExxonMobil Research & Engineering Co.Inventors: Stephen Mark Davis, Michael Gerard Matturro
-
Patent number: 6517704Abstract: A process for upgrading oil feedstock wherein the feedstock is hydrocracked, and flasked and/or distilled. A distillate fraction boiling in the diesel range is isolated and dewaxed under high pressure by a medium pore molecular sieve. The dewaxed material is then cascaded to a hydrofinishing step, where it is contacted with an aromatics saturation catalyst having a metal hydrogenation function in order to produce diesel fuels having low aromatics content.Type: GrantFiled: November 13, 2000Date of Patent: February 11, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael B. Carroll, Fritz A. Smith, John C. Bixel
-
Patent number: 6508931Abstract: A process for the production of white oil includes adding a supercritical fluid (propane, butane or carbon dioxide) to the base oil and hydrogen injected into a reactor for hydrogenation. The base oil and supercritical fluid use high-pressure injector pumps as the feed system. The feed system for hydrogen uses a high-pressure compressor to compress hydrogen from a hydrogen tank to a storage tank, then a mass flow controller is used to steadily feed the hydrogen. A static mixer mounted in line, upstream from the inlet of the reactor mixes the reactant well. Several thermocouples are connected to the reactor, inlet and outlet of said reactor to measure the temperatures of the reaction. The detected data from the thermocouples are transferred to a six-point thermograph. The pressure of the reaction is maintained by a back pressure regulator that is mounted downstream from the outlet of said reactor. After the hydrogenation reaction is complete, the pressure of the fluid in the outlet of the reactor is reduced.Type: GrantFiled: October 31, 2000Date of Patent: January 21, 2003Assignee: Chinese Petroleum CorporationInventors: Wen-Fa Lin, Jen-Min Chen, Jun-Yi Chen, Kuang-Hua Tsai
-
Patent number: 6503388Abstract: The invention is directed to a process for the hydrogenation of a hydrocarbon feed containing thiophenic sulfur contaminants, wherein the entire feed is contacted with a nickel catalyst, the improvement comprising contacting the said feed additionally with a platinum group metal prior to or simultaneously with contacting the nickel.Type: GrantFiled: May 21, 1998Date of Patent: January 7, 2003Assignee: Engelhard de Meern B.V.Inventor: Bernard Hendrik Reesink
-
Patent number: 6500329Abstract: A two stage process useful for cetane upgrading of diesel fuels. More particularly, the invention relates to a process for selective naphthenic ring-opening utilizing an extremely low acidic distillate selective catalyst having highly dispersed Pt. The process is a two stage process wherein the first stage is a hydrotreating stage for removing sulfur from the feed and the second stage is the selective ring-opening stage.Type: GrantFiled: October 16, 2001Date of Patent: December 31, 2002Assignee: ExxonMobil Research and Engineering CompanyInventors: Ying-Yen P. Tsao, Tracy J. Huang, Philip J. Angevine
-
Patent number: 6495030Abstract: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and fractionation to remove the mercaptans the light fraction and then to simultaneous hydrodesulfurization and splitting of the remainder into an intermediate boiling range naphtha and a heavy boiling range naphtha. The three boiling range naphthas are treated separately according to the amount of sulfur in each cut and the end use of each fraction.Type: GrantFiled: September 28, 2001Date of Patent: December 17, 2002Assignee: Catalytic Distillation TechnologiesInventor: Gary G. Podrebarac
-
Publication number: 20020179489Abstract: The present invention relates to a method for gas-solid contacting in a bubbling fluidized bed reactor by:Type: ApplicationFiled: March 26, 2001Publication date: December 5, 2002Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHInventors: Vasant Ramchandra Choudhary, Tushar Vasant Choudhary
-
Publication number: 20020179493Abstract: A premium “fuel-grade” petroleum coke is produced by modifying petroleum coking technology. Coking process parameters are controlled to consistently produce petroleum coke within a predetermined range for volatile combustible material (VCM) content. The invention includes a process of producing a coke fuel, the method comprising steps: (a) obtaining a coke precursor material derived from crude oil and having a volatile organic component; and (b) subjecting the coke precursor material to a thermal cracking process for sufficient time and at sufficient temperature and under sufficient pressure so as to produce a coke product having volatile combustible materials (VCMs) present in an amount in the range of from about 13% to about 50% by weight. Most preferably, the volatile combustible materials in the coke product typically may be in the range of from about 15% to about 30% by weight.Type: ApplicationFiled: December 20, 2001Publication date: December 5, 2002Applicant: Environmental & Energy Enterprises, LLCInventor: Roger G. Etter
-
Patent number: 6488838Abstract: The present invention is a chemical reactor and method for catalytic chemical reactions having gas phase reactants. The chemical reactor has reactor microchannels for flow of at least one reactant and at least one product, and a catalyst material wherein the at least one reactant contacts the catalyst material and reacts to form the at least one product. The improvement, according to the present invention is: the catalyst material is on a porous material having a porosity that resists bulk flow therethrough and permits molecular diffusion therein. The porous material further has a length, a width and a thickness, the porous material defining at least a portion of one wall of a bulk flow path through which the at least one reactant passes.Type: GrantFiled: August 17, 1999Date of Patent: December 3, 2002Assignee: Battelle Memorial InstituteInventors: Anna Lee Y. Tonkovich, Yong Wang, Sean P. Fitzgerald, Jennifer L. Marco, Gary L. Roberts, David P. Vanderwiel, Robert S. Wegeng
-
Patent number: 6485631Abstract: A process for thermal and, optionally, catalytic upgrading and hydrogenation of hydrocarbons is described, wherein the hydrocarbons (oil) with a lower API grade is passed through one or more reactors connected in parallell or in series, preferably in series, in liquid state where it under pressure and intense agitation at a given temperature is thermally upgraded by increasing API, and that the product is discharged in liquid state, and whereby the agitation is effected by whipping elements, optionally made of a catalytic material acting as a catalyst in upgrading the oil in the reactor.Type: GrantFiled: January 27, 2000Date of Patent: November 26, 2002Assignee: Ellycrack ASInventor: Olav Ellingsen
-
Patent number: 6451198Abstract: A process for transforming a gas oil cut into a dearomatized fuel with a high cetane number comprises at least one first, deep desulphurization and deep denitrogenation step in which the gas oil cut and hydrogen are passed over a catalyst comprising a mineral support, at least one group VIB metal or metal compound, at least one group VIII metal or metal compound, and phosphorous or at least one phosphorous compound, and at least one subsequent second step, dearomatization, in which the desulphurized and denitrogenated product from the first step is passed with hydrogen over a catalyst comprising a mineral support and at least one group VIII noble metal or noble metal compound.Type: GrantFiled: March 22, 2001Date of Patent: September 17, 2002Assignee: Institut Francais du PetroleInventors: Frédéric Morel, Henri Delhomme, Nathalie George-Marchal
-
Publication number: 20020121460Abstract: Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.Type: ApplicationFiled: December 18, 2001Publication date: September 5, 2002Inventors: David Moy, Chunming Niu, Jun Ma, Jason M. Willey
-
Patent number: 6444118Abstract: A process for concurrently fractionating and treating of a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification or selective hydrogenation and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha. The intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans, dienes or mixtures may be subjected to a second thioetherification or selective hydrogenation, depending on its make-up, and then passed on to a polishing hydrodesulfurization reactor or the entire intermediate stream may be passed directly to the polishing reactor. The bottoms are subjected to concurrent hydrodesulfurization and fractional distillation and the combined overheads and bottoms are fed to the polishing reactor.Type: GrantFiled: February 16, 2001Date of Patent: September 3, 2002Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Gary R. Gildert
-
Patent number: 6444865Abstract: Catalyst comprising from 0.1 to 15% by weight of a noble metal selected from one or more of platinum, palladium, and iridium, from 2 to 40% by weight of manganese and/or rhenium supported on an acidic carrier, these weight percentages indicating the amount of metal based on the total weight of carrier. Use of this catalyst in a process wherein a hydrocarbon feedstock comprising aromatic compounds is contacted with the catalyst at elevated temperature and pressure in the presence of hydrogen. Process for the preparation of this catalyst, which process comprises incorporating the catalytically active metals into the carrier followed by drying and calcining.Type: GrantFiled: August 1, 2000Date of Patent: September 3, 2002Assignee: Shell Oil CompanyInventors: Guy Barre, Taous Grandvallet Mahtout
-
Publication number: 20020112989Abstract: A hydrocarbon hydrogenation process and a catalytic composition having hydrogenation functionality. The catalytic composition includes at least two noble metals supported on an inorganic, porous crystalline phase support material having pores with diameters of at least about 13 Angstrom Units and exhibiting, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than about 18 Å with a relative intensity of 100, and having a benzene sorption capacity greater than about 15 grams benzene per 100 grams of the support material at 50 torr and 25° C. The noble metals are selected from the group consisting of Pd, Pt, Rh and lr and the crystalline material is a metallosilicate or an aluminosilicate.Type: ApplicationFiled: August 16, 2001Publication date: August 22, 2002Inventors: Stuart S. Shih, Yuk-Mui Louie, David A. Pappal, Jean W. Beeckman
-
Patent number: 6436279Abstract: This invention teaches an improved ebullated-bed reactor hydrotreating/hydrocracking process for treating heavy vacuum gas oil (HVGO) and deasphalted oil (DAO) feeds. The reactor is designed to operate at minimum catalyst bed expansion so as to maximize reactor kinetics and approach plug flow reactor process performance. Further, the invention allows for the production of a uniform product quality and production output that does not substantially vary with time.Type: GrantFiled: November 8, 2000Date of Patent: August 20, 2002Assignee: Axens North America, Inc.Inventor: James J. Colyar
-
Patent number: 6428686Abstract: A process where the need to circulate hydrogen through the catalyst is eliminated. This is accomplished by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is “high” relative to the oil feed. The type and amount of diluent added, as well as the reactor conditions, can be set so that all of the hydrogen required in the hydroprocessing reactions is available in solution. The oil/diluent/hydrogen solution can then be fed to a plug flow reactor packed with catalyst where the oil and hydrogen react. No additional hydrogen is required, therefore, hydrogen recirculation is avoided and trickle bed operation of the reactors is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.Type: GrantFiled: June 22, 2000Date of Patent: August 6, 2002Assignee: Process Dynamics, Inc.Inventors: Michael D. Ackerson, Michael S. Byars
-
Patent number: 6425998Abstract: A process for using a hydrogen sensor in a liquid metal heat exchange loop in a hydrocarbon conversion process with high hydrogen permeation. The hydrogen sensor of the present invention consists essentially of a hollow nickel membrane probe in intimate contact with liquid metal. A vacuum chamber in fluid communication with the hollow nickel membrane probe through which hydrogen permeates, wherein the vacuum chamber is initially evacuated to a vacuum pressure and is in equilibrium with the vacuum chamber. The hydrogen sensor is useful for measuring the partial pressure of the hydrogen in the liquid metal to provide advisory control for the removal of hydrogen from the liquid metal exchange loop to avoid the problem of metal hydride formation and associated plugging problems.Type: GrantFiled: February 23, 2000Date of Patent: July 30, 2002Assignee: UOP LLCInventor: Donald Cholewa
-
Patent number: 6420619Abstract: The C3 to C6 cut from a cracking process containing propylene, butane, 1-butene, 2-butene and acetylenic and diene components including butadiene are preferentially converted to propylene. The cut is simultaneously fractionated and catalytically hydrogenated to hydrogenate the acetylenic and diene components. The fractionation and subsequent separation recovers a C4 component comprising a mixture of isobutene, 1-butene and 2-butene. This C4 component is then further simultaneously fractionated and catalytically hydrogenated and hydroisomerized to hydrogenate remaining butadiene, remove isobutene overhead and convert 1-butene to 2-butene leaving a bottoms of 2-butene. The 2-butene is then injected with ethylene and catalytically metathesized to form propylene.Type: GrantFiled: January 25, 2001Date of Patent: July 16, 2002Inventors: Robert J. Gartside, Gary R. Gildert