Feed Of Specific Composition Patents (Class 208/144)
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Patent number: 7510646Abstract: Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends, containing branched C8, C12 and C16 olefinic cuts, characterized by sending said blends, as such or fractionated into two streams, one substantially containing the branched C8 olefinic cut, the other substantially containing the branched C12 and C16 olefinic cuts, to a single hydrogenation zone or to two hydrogenation zones in parallel, respectively, only the stream substantially containing of saturated C8 hydrocarbons, obtained by the fractionation of the stream produced by the single hydrogenation zone or obtained by the hydrogenation zone fed by the fractionated stream substantially containing the branched C8 olefinic cut, being at least partly recycled to the single hydrogenation zone or to the hydrogenation zone fed by the fractionated stream substantially containing the branched C8 olefinic cut, and the hydrocarbon blend with a high octane number, obtained by the fractionation of the stType: GrantFiled: December 29, 2003Date of Patent: March 31, 2009Assignee: Snamprogetti S.p.A.Inventors: Roberto Catani, Marco Di Girolamo, Massimo Conte, Ambrogio Gusberti
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Publication number: 20080308459Abstract: A process of the present invention for producing a hydrotreated gas oil has a step for obtaining a product oil having a total aromatic content of 3% by volume or less by hydrogenating a hydrotreated oil including 95% by volume or more of fraction having a boiling point range of 150-380° C., a sulfur content of 2-15 ppm by mass, a total aromatic content of 10-25% by volume, and a naphthene of 20-60% by volume in the presence of a hydrogenation catalyst; and a step for obtaining, by hydrogenating the above-described product oil in the presence of a hydrogenation catalyst containing a crystalline molecular sieve component, a product oil satisfying the conditions that the content of petroleum fraction having a boiling point range of lower than 150° C. is 16% by volume or less, and the sum of the total aromatic content and the total naphthene content is 80% or less relative to the sum of these in the hydrotreated oil.Type: ApplicationFiled: September 30, 2005Publication date: December 18, 2008Inventors: Hideshi Iki, Yukihiro Sugiura, Yuichi Tanaka, Hirofumi Konno
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Publication number: 20080067109Abstract: The instant invention relates to a method for producing low-sulfur, low-nitrogen diesel boiling range products involving contacting a diesel boiling range feedstream with an acidic solution to selectively remove heterocyclic nitrogen-containing compounds before hydrotreating.Type: ApplicationFiled: December 1, 2004Publication date: March 20, 2008Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Mark A. Greaney, Peter W. Jacobs, John N. Begasse, Jeffrey M. Dysard
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Patent number: 7285695Abstract: The invention is directed to a process for the hydrogenation of hydrocarbon resins in the presence of a precious metal catalyst, wherein the hydrogenation is performed in the additional presence of at least one metal oxide, capable of reacting with sulfide and/or halogen.Type: GrantFiled: November 1, 2000Date of Patent: October 23, 2007Assignee: Engelhard CorporationInventors: Bernard Hendrik Reesink, Willem Dijkstra
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Patent number: 7276150Abstract: The process for desulfurizing a gas oil fraction according to the invention comprises a low-boiling gas oil fraction hydrodesulfurization step (I) wherein a low-boiling gas oil fraction is desulsurized under the condition of a H2/Oil ratio of 70 to 200 Nm3/kl to obtain a treated oil, a high-boiling gas oil fraction hydrodesulfurization step (II) wherein a high-boiling gas oil fraction is desulsurized under the condition of a H2Oil ratio of 200 to 800 Nm3/kl to obtain a treated oil, and a step (III) wherein the treated oil obtained in the step (I) is mixed with the treated oil obtained in the step (II), and in this process, at least a part of a gas containing unreacted hydrogen in the step (II) is used for the hydrodesulfurization of the step (I).Type: GrantFiled: November 16, 2001Date of Patent: October 2, 2007Assignee: JGC CorporationInventors: Shigeki Nagamatsu, Jun Abe, Akira Sugimoto, Makoto Inomata, Tetsuya Watanabe
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Patent number: 7270737Abstract: For desulfurization of a hydrocarbon-containing feedstock, at least one stage for selective hydrogenation of diolefins present in the initial hydrocarbon feedstock, in the presence of a catalyst of group VIII of the period table, and a stage for extraction by a solvent of the resultant hydrogenated fraction under conditions that provide at least two fractions: a raffinate that comprises for the most part olefins, paraffins and naphthenes and a reduced amount of sulfur-containing compounds that are contained in the initial feedstock, a fraction that contains the majority of the aromatic hydrocarbons and the majority of the sulfur-containing compounds contained in the initial feedstock.Type: GrantFiled: November 13, 2003Date of Patent: September 18, 2007Assignee: Institut Francais du PetroleInventors: Florent Picard, Raphaël Huyghe
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Patent number: 7196034Abstract: The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of 14 to 45 wt. %, an aluminium content, calculated as Al2O3, of 1 to 15 wt. % an iron content, calculated as Fe, 0.25 to 4 wt. %, all percentages having been calculated on the basis of the reduced catalyst, and which catalyst has a volume of pores between 2 and 60 nm, as defined herein, of at least 0.35 ml/g of catalyst.Type: GrantFiled: November 17, 2000Date of Patent: March 27, 2007Assignee: Engelhard CorporationInventor: Lucas Laurentius Kramer
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Patent number: 7173160Abstract: Hydroprocessing such as hydrocracking is advantageously employed in processes for the recovery and purification of higher diamondoids from petroleum feedstocks. Hydrocracking and other hydroprocesses degrade nondiamondoid contaminants.Type: GrantFiled: July 16, 2003Date of Patent: February 6, 2007Assignee: Chevron U.S.A. Inc.Inventors: Theo Maesen, Robert M. Carlson, Jeremy E. Dahl, Shenggao Liu, Hye Kyung C. Timken, Waqar R. Qureshi
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Patent number: 7132043Abstract: Process to prepare a lubricating base oil starting from a lubricating base oil which is obtained by first removing part of the aromatic compounds from a petroleum fraction boiling in the lubricating oil range by solvent extraction and subsequently dewaxing the solvent extracted product, wherein the following steps are performed, (a) contacting the lubricating base oil with a suitable sulphided hydrotreating catalyst in a first hydrotreating step; (b) separating the effluent of step (a) into a gaseous fraction and a liquid fraction; (c) contacting the liquid fraction of step (b) with a catalyst comprising a noble metal component supported on an amorphous refractory oxide carrier in the presence of hydrogen in a second hydrotreating step; and (d) recovering the lubricating base oil.Type: GrantFiled: May 26, 2000Date of Patent: November 7, 2006Assignee: Shell Oil CompanyInventors: Eric Duprey, Jean-Paul Fattaz, Roland Albert Charles Garin, Patrick Moureaux
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Patent number: 7087155Abstract: A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a crystalline silicate catalyst to produce an effluent having a second composition of at least one olefinic component, the feedstock and the effluent having substantially the same olefin content by weight therein as the feedstock. A process for the cracking of olefins in a hydrocarbon feedstock containing at least one diene and at least one olefin, the process comprising hydrogenating the at least one diene to form at least one olefin in the presence of a transition metal-based hydrogenation catalyst at an inlet temperature of from 40 to 200° C.Type: GrantFiled: December 5, 1998Date of Patent: August 8, 2006Assignee: TOTAL Petrochemicals Research FeluyInventors: Jean-Pierre Dath, Luc Delorme, Jacques-François Grootjans, Xavier Vanhaeren, Walter Vermeiren
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Patent number: 7014750Abstract: Systems and processes for the hydrotreatment of pyrolysis gasoline comprising reactors, monolithic catalyst beds and hydrogen-containing treatment gases that allow for improved efficiency and productivity over conventional trickle bed processes and systems for such hydrotreatment.Type: GrantFiled: August 5, 2004Date of Patent: March 21, 2006Assignee: Corning IncorporatedInventors: Thorsten R. Boger, Shantanu Roy, Charles M. Sorensen, Jr.
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Patent number: 6881326Abstract: 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 reactor is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.Type: GrantFiled: June 3, 2002Date of Patent: April 19, 2005Assignee: Process Dynamics, Inc.Inventors: Michael D. Ackerson, Michael S. Byars
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Patent number: 6855245Abstract: The invention is directed to a process for the hydrogenation of a sulfur containing feedstock, having a sulfur content of less than 50 ppm, wherein the feedstock is hydrogenated in the presence of a precious metal catalyst and a nickel-catalyst, said process being carried out in such a manner, that the feedstock is contacted with a mixture of precious metal catalyst, metal oxide and nickel catalyst, the feedstock is contacted initially with the precious metal catalyst followed by contact with the metal oxide and nickel catalyst, either in combination or sequentially, or the feedstock is contacted first with a mixture of precious metal catalyst and metal oxide, followed by contact with the nickel catalyst.Type: GrantFiled: July 20, 1999Date of Patent: February 15, 2005Assignee: Engelhard CorporationInventors: Bernard Hendrik Reesink, Willem Dijkstra, Pieter Hildegardus Berben, Marius Vaarkamp
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Patent number: 6824674Abstract: 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: GrantFiled: May 30, 2002Date of Patent: November 30, 2004Assignee: Equistar Chemicals, LPInventor: Mark P. Kaminsky
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Patent number: 6794552Abstract: A catalyst composition is provided which can be used for hydrogenating a highly unsaturated hydrocarbon such as an alkyne or a diolefin. The catalyst composition contains palladium, a catalyst component of either silver or an alkali metal compound, or both silver and an alkali metal compound, and a metal aluminate catalyst support. Such metal aluminate catalyst support is prepared by a process of incorporating alumina with a metal component, preferably impregnating alumina with a melted metal component, to thereby provide a metal-incorporated alumina followed by drying and high temperature calcining to thereby provide a metal aluminate catalyst support. The catalyst composition disclosed can be used for hydrogenating a highly unsaturated hydrocarbon to a less unsaturated hydrocarbon. The process involves contacting a highly unsaturated hydrocarbon with a catalyst composition in the presence of hydrogen under a hydrogenation condition sufficient to effect a hydrogenation of the highly unsaturated hydrocarbon.Type: GrantFiled: December 21, 2001Date of Patent: September 21, 2004Assignee: Phillips Petroleum CompanyInventors: Tin-Tack Peter Cheung, Darin B. Tiedtke, Marvin M. Johnson, Gary A. Delzer
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Publication number: 20040173501Abstract: Embodiments include processes for producing streams containing organic molecules (for example, diesel fuels and diesel fuel blending agents) including ultra-low severity hydrotreatment of at least a portion of a hydrocarbon synthesis product stream. Also, streams containing organic molecules (for example, diesel fuels and diesel fuel blending agents) produced by the processes are described.Type: ApplicationFiled: March 5, 2003Publication date: September 9, 2004Applicant: ConocoPhillips CompanyInventors: Keith H. Lawson, Douglas S. Jack, Craig T. Barker, Sridhar Gopalakrishnan, Rafael L. Espinoza
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Patent number: 6740787Abstract: A process for treatment of a batch with four carbon atoms that contains diene compounds and a minor portion of acetylene compounds is described. A portion of the fluid that circulates in a distillation zone that is enriched with acetylene compounds is drawn off laterally, preferably in the drainage zone, and a selective hydrogenation stage is carried out in a hydrogenation zone that is outside the distillation zone. The hydrogenation effluent that is produced is recycled in the rectification zone. A C4 fraction that comprises butadiene and that is low in acetylene compounds is recovered at the top, and a C5 fraction that is enriched with oligomers is recovered at the bottom.Type: GrantFiled: December 21, 2001Date of Patent: May 25, 2004Assignee: Institut Francais du PetroleInventors: Mathieu Pinault, Vincent Coupard, Christophe Boyer
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Patent number: 6693225Abstract: Hydrogenation of a liquid cut containing hydrocarbons, in particular unsaturated molecules containing at least two double bonds or at least one triple bond, is described wherein the unsaturated molecules are at least partially hydrogenated to less unsaturated molecules containing at least one double bond, in at least one reactor comprising at least two distinct beds of at least one hydrogenation catalyst, and wherein a gas phase containing hydrogen is introduced, a portion thereof being mixed with said cut upstream of the first catalyst bed and a portion thereof being introduced upstream of the subsequent beds contained in said reactor.Type: GrantFiled: June 28, 2001Date of Patent: February 17, 2004Assignee: Institut Francais du PetroleInventors: Christophe Boyer, Vincent Coupard, Quentin Debuisschert
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Patent number: 6433242Abstract: The invention relates to a process for separating dibutenes into an n-octene-containing fraction and a dimethylhexene-containing fraction. The fractions can be processed further separately to the corresponding C9 carboxylic acids and C9 alcohols (isononanols). Successor products of the C9 carboxylic acids include, for example, vinyl esters. Successor products of the C9 alcohols include plasticizers.Type: GrantFiled: February 17, 2000Date of Patent: August 13, 2002Assignee: OXENO Olefinchemie GmbHInventor: Klaus-Diether Wiese
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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
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Patent number: 6413413Abstract: A process for hydrodesulfurization in which gasoline boiling range petroleum feed and hydrogen are contacted in a reactor with a fixed bed hydrodesulfurization catalyst at an WHSV of greater than 6, pressure of less than 300 psig and temperature of 300 to 700° F. wherein the pressure and temperature of the reactor are adjusted to maintain the reaction effluent at its boiling point and below it dew point whereby at least a portion but less than all of the reaction mixture is vaporized.Type: GrantFiled: December 29, 1999Date of Patent: July 2, 2002Assignee: Catalytic Distillation TechnologiesInventor: Lawrence A. Smith, Jr.
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Patent number: 6410811Abstract: The process of the invention is a process for selective hydrogenation of a hydrocarbon feed containing hydrogen and C2+ hydrocarbons, characterized in that it comprises at least one step for separating a fraction of the hydrogen contained in the feed by means of a membrane (step a)) and a step for selective hydrogenation of the effluent from step a) in a reactive column (step b)).Type: GrantFiled: March 8, 2001Date of Patent: June 25, 2002Assignee: Institut Francais du PetroleInventors: Michel Chau, Michel Derrien, Alain Methivier
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Patent number: 6398950Abstract: The present invention relates to a catalyst for hydrogenation treatment in which Mo—Ni, Mo—Co or the like is supported on an alumina-type carrier, and a method for hydrogenation treatment of heavy oil using the same. More specifically, it relates to the catalyst showing a specific X-ray diffraction pattern, and a method for hydrogenation treatment of heavy oil using the same.Type: GrantFiled: March 1, 2000Date of Patent: June 4, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Ryuichiro Iwamoto, Takao Nozaki, Kei Uchikawa
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Publication number: 20020043477Abstract: The invention relates to a process for converting cycle oils produced in catalytic cracking reactions into light olefin, preferably propylene. More particularly, the invention relates to a process for hydroprocessing a catalytically cracked light cycle oil, and then re-cracking in a second FCC reactor.Type: ApplicationFiled: March 16, 2001Publication date: April 18, 2002Inventor: William E. Winter
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Publication number: 20020038065Abstract: A hydrogenation catalyst which is sulfur tolerant and which includes from about 0.1 to about 1 percent platinum by weight and from 0.2 to about 2 percent by weight palladium on a predominantly theta alumina carrier. Also disclosed is a process for the manufacture and use of the hydrogenation catalyst.Type: ApplicationFiled: October 2, 2001Publication date: March 28, 2002Applicant: Sud-Chemie Inc.Inventors: Dinah C. Huang, William M. Faris, P. Donald Hopkins, Paul Jerus
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Publication number: 20020022754Abstract: Hydrogenation of a liquid cut containing hydrocarbons, in particular unsaturated molecules containing at least two double bonds or at least one triple bond, is described wherein the unsaturated molecules are at hydrogenated to less unsaturated molecules containing at least one double bond, in at least one reactor comprising at least two distinct beds of at least one hydrogenation catalyst, and wherein a gas phase containing hydrogen is introduced, a portion thereof being mixed with said cut upstream of the first catalyst bed and a portion thereof being introduced upstream of the subsequent beds contained in said reactor.Type: ApplicationFiled: June 28, 2001Publication date: February 21, 2002Applicant: Institut Francais du PetroleInventors: Christophe Boyer, Vincent Coupard, Quentin Debuisschert
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Patent number: 6329561Abstract: The method of producing high purity isooctane useful as a gasoline blending component from diisobutylene or isooctane contaminated with minor amounts of oxygenated impurities which comprises converting the impurities at conditions of elevated temperature and pressure to hydrocarbon and water and recovering the purified diisobutylene or isooctane stream.Type: GrantFiled: September 27, 2000Date of Patent: December 11, 2001Assignee: Equistar Chemicals, LPInventors: Kenneth M. Webber, Mark P. Kaminsky, Andrew P. Kahn
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Publication number: 20010027937Abstract: A process, preferably in a counter-current configuration, for selectively cracking carbon-carbon bonds of naphthenic species using a low acidic catalyst, preferably having a crystalline molecular sieve component and carrying a Group VIII noble metal. The diesel fuel products are higher in cetane number and diesel yield.Type: ApplicationFiled: May 16, 2001Publication date: October 11, 2001Inventors: Ying-Yen P. Tsao, Tracy J. Huang, Philip J. Angevine
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Patent number: 6299758Abstract: Gas oils comprises one or more gas oil bases obtained by subjecting specific fractions from distilled petroleum fractions to hydrogenating treatment under specific conditions and optionally a small amount of a straight kerosene or gas oil. The gas oils have a sulfur concentration of 350 ppm or below.Type: GrantFiled: November 10, 1999Date of Patent: October 9, 2001Assignee: Nippon Mitsubishi Oil CorporationInventors: Hajime Okazaki, Katsuhiko Ishikawa, Michiaki Adachi, Toshio Waku
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Patent number: 6284128Abstract: A process combination is disclosed to selectively upgrade hydrocarbons in a manner to essentially eliminate olefins in product from the combination. Preferably the hydrocarbons comprise naphtha which is reformed to upgrade its octane number and/or to produce aromatic intermediates, followed by hydrogenation of olefins in the reformate. Olefin saturation optimally is effected by catalytic reaction on an olefin-containing reformate taken at an intermediate point from the effluent side of the reforming-process feed-effluent heat exchanger. Saturation is performed in a defined temperature range which results in selective hydrogenation.Type: GrantFiled: September 2, 1999Date of Patent: September 4, 2001Assignee: UOP LLCInventors: Bryan K. Glover, Aronson L. Huebner
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Patent number: 6278034Abstract: A process for hydrogenating long chain hydrocarbons includes continuously feeding a feedstock having long chain hydrocarbons into a slurry bed including a slurry of catalyst particles in a slurrying liquid. The slurry bed is contained in a reaction zone and the feedstock enters the reaction zone at a low level. A hydrogenation component is fed continuously into the slurry bed, at a low level. The hydrogenation component is allowed to react with the feedstock, to hydrogenate the feedstock, as the feedstock and hydrogenation component pass upwardly through the bed. Hydrogenated long chain hydrocarbons are withdrawn from the reaction zone at a high level, as a hydrogenation product. Any excess hydrogenation component is withdrawn from the reaction zone at a high level.Type: GrantFiled: August 11, 1999Date of Patent: August 21, 2001Assignee: Sasol Technology (Proprietary) LimitedInventors: Rafael Luis Espinoza, Andre Peter Steynberg, Samantha Harding, Johan Labuschagne
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Publication number: 20010013484Abstract: A process for reducing content of sulphur compounds and polyaromatic hydrocarbons in a hydrocarbon feed having a boiling range between 200° C. and 600° C., which process comprises in combination contacting the feed and hydrogen over a hydrotreating catalyst and hydrotreating feed at hydrotreating conditions, cooling the hydrotreated effluent and hydrogen-rich gas from the hydrotreating reactor contacting said effluent and hydrogen gas over a hydrotreating catalyst in a post-pretreatment reactor at a temperature sufficient to lower the polyaromatic hydrocarbon content.Type: ApplicationFiled: January 24, 2001Publication date: August 16, 2001Applicant: Haldor Topsoe A/SInventors: Per Zeuthen, Barry H. Cooper
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Patent number: 6264827Abstract: A manufacturing process of a diesel gas oil with a high cetane number and a low sulfur, where the cetane number thereof is at least 45, the sulfur content thereof is less than 350 ppm, and the storage stability is superior, from a petroleum distillate oil with a low cetane number and a high sulfur content is provided.Type: GrantFiled: August 27, 1999Date of Patent: July 24, 2001Assignee: Nippon Mitsubishi Oil Corp.Inventors: Hajime Okazaki, Katuhiko Ishikawa, Michiaki Adachi, Toshio Waku
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Patent number: 6245220Abstract: For transforming unsaturated diolefinic hydrocarbons to a &agr;-olefinic hydrocarbons at rates which are at least 1.5 times higher than the rate of hydrogenation of &agr;-olefinic hydrocarbons to saturated compounds, the catalyst contains palladium distributed at the periphery of particles (spherules or extrduates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates.Type: GrantFiled: September 17, 1999Date of Patent: June 12, 2001Assignee: Institut Francais du PetroleInventors: Blaise Didillon, Charles Cameron, Christophe Gautreau
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Patent number: 6241876Abstract: A process, preferably in a counter-current configuration, for selectively cracking carbon-carbon bonds of naphthenic species using a low acidic catalyst, preferably having a crystalline molecular sieve component and carrying a Group VIII noble metal. The diesel fuel products are higher in cetane number and diesel yield.Type: GrantFiled: June 11, 1999Date of Patent: June 5, 2001Assignee: Mobil Oil CorporationInventors: Ying-Yen P. Tsao, Tracy J. Huang, Philip J. Angevine
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Publication number: 20010001805Abstract: A composition and a process for using the composition in a selective hydrogenation of a highly unsaturated hydrocarbon such as, for example, an alkyne or diolefin, to a less unsaturated hydrocarbon such as, for example, an alkene or a monoolefin, are disclosed. The composition comprising palladium, a selectivity enhancer and an inorganic support wherein the palladium and selectivity enhancer are each present in a sufficient amount to effect the selective hydrogenation of a highly unsaturated hydrocarbon. Optionally, the composition can comprise silver. Also optionally, the palladium is present as skin distributed on the surface of the support. The composition can further comprise an alkali metal-containing compound such as, for example, potassium fluoride.Type: ApplicationFiled: November 19, 1998Publication date: May 24, 2001Applicant: Phillips Petroleum CompanyInventors: SCOTT H. BROWN, TIN-TACK PETER CHEUNG
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Patent number: 6235954Abstract: A catalyst composition and process for preparing such catalyst composition which can be useful in contacting a hydrocarbon-containing fluid which contains a highly unsaturated hydrocarbon such as 1,3-butadiene, in the presence of hydrogen, with such catalyst composition in a hydrogenation zone under a hydrogenation condition effective to hydrogenate such highly unsaturated hydrocarbon to a less unsaturated hydrocarbon such as n-butene is disclosed. Such process for preparing a catalyst composition includes (1) combining a zeolite, a Group VIB metal, and an inorganic support to form a modified zeolite; (2) calcining such modified zeolite under a calcining condition to produce a calcined, modified zeolite; and (3) contacting such calcined, modified zeolite with a carburizing agent under a carburizing condition to provide such catalyst composition.Type: GrantFiled: September 29, 1999Date of Patent: May 22, 2001Assignee: Phillips Petroleum CompanyInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 6210563Abstract: A process is provided for selectively producing diesel fuel with increased cetane number from a hydrocarbon feedstock. The process includes contacting the feedstock with a catalyst which has a large pore crystalline molecular sieve material component having a faujasite structure and alpha acidity of less than 1, preferably about 0.3 or less. The catalyst also contains a dispersed Group VIII noble metal component which catalyzes the hydrogenation/hydrocracking of the aromatic and naphthenic species in the feedstock.Type: GrantFiled: December 30, 1998Date of Patent: April 3, 2001Assignee: Mobil Oil CorporationInventors: Ying-Yen P. Tsao, Tracy J. Huang, Philip J. Angevine
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Patent number: 6207870Abstract: The invention provides a catalyst including a support, at least one noble metal from group VIII of the periodic table, silicon as a dopant, optionally boron, optionally at least one group VIB element, optionally phosphorous and optionally at least one halogen. The invention also provides a particular preparation of the catalyst. The invention also concerns the use of this catalyst in the hydrotreatment of hydrocarbon-containing feeds, more particularly its use for hydrogenating aromatic compounds in a gas oil cut.Type: GrantFiled: May 6, 1999Date of Patent: March 27, 2001Assignee: Institut Francais du PetroleInventors: Slavik Kasztelan, Samuel Mignard, Virginie Harle, Nathalie Marchal-George
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Patent number: 6187980Abstract: A process for the production of cyclohexane by the hydrogenation of benzene is provided wherein the reactor is operated at a pressure wherein the reaction mixture is boiling under low hydrogen partial pressure in the range of about 0.1 psia to less than 200 psia at 0 to 350 psig overhead pressure. The catalyst is provided as a catalytic distillation structure such that the reaction is concurrently occurring with a distillation. The benzene is fed at a point above the bed and the hydrogen is fed below the bed. All of the overheads may be returned as reflux to provide cooling within the catalyst bed.Type: GrantFiled: September 29, 1999Date of Patent: February 13, 2001Assignee: Catalytic Distillation TechnologiesInventor: Gary R. Gildert
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Patent number: 6187176Abstract: A three stage process for producing high quality white oils, particularly food grade mineral oils from mineral oil distillates. The first reaction stage preferably 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 preferably employs a hydrogenation/hydrodesulfurization catalyst combined with a sulfur sorbent and produces 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 grade white oil.Type: GrantFiled: August 22, 1997Date of Patent: February 13, 2001Assignee: Exxon Research and Engineering CompanyInventors: Sylvain Hantzer, Alberto Ravella, Ian A. Cody, Darryl P. Klein