Patents Examined by Bekir L. Yildirim
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Patent number: 6455461Abstract: A composition comprises a hydrogenation catalyst supported on an inorganic support which comprises aluminum, zirconium, and a borate. A process for producing the composition comprises the steps of (1) contacting an aluminum salt, a zirconium salt, and an acidic boron compound under a condition sufficient to effect the production of a solid material comprising aluminum, zirconium, and borate; and (2) combining a hydrogenation catalyst with the inorganic support. Also disclosed is a process for reducing aromatic compounds content in a hydrocarbon-containing fluid which comprises contacting a hydrocarbon-containing fluid, in the presence of a catalyst composition, with hydrogen wherein said catalyst composition comprises a hydrogenation catalyst and an inorganic support wherein said support comprises aluminum, zirconium and a borate.Type: GrantFiled: September 23, 1999Date of Patent: September 24, 2002Assignee: Phillips Petroleum CompanyInventor: Lyle R. Kallenbach
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Patent number: 6452061Abstract: A process for the production of a mono-olefin from a gaseous paraffinic hydrocarbon having at least two carbon atoms or mixtures thereof comprising reacting said hydrocarbons and molecular oxygen in the presence of a platinum catalyst. The catalyst consist essentially of platinum supported on alumina or zirconia monolith, preferably zirconia and more preferably in the absence of palladium, rhodium and gold.Type: GrantFiled: April 23, 1996Date of Patent: September 17, 2002Assignee: Regents of the University of MinnesotaInventors: Lanny D. Schmidt, Marylin Huff
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Patent number: 6440298Abstract: An apparatus and a method are provided reclaiming a useful oil product from waste oil, such as used lubricating oil. The apparatus comprises an oil feed means, a boiler, a heater and a separating means. The heater is used to heat the waste oil in the boiler to a temperature such that lighter hydrocarbons remain unvolatilized, trapping contaminants therewith. The separating means separates the volatilized lighter hydrocarbons from the unvolatilized heavier hydrocarbons and contaminants.Type: GrantFiled: October 11, 2000Date of Patent: August 27, 2002Assignee: Patent Holdings Ltd.Inventor: Edward Carlton Shurtleff
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Patent number: 6440299Abstract: A process for treating a light cracked naphtha to be used as an etherification feed stock is disclosed in which mercaptans, H2S and diolefins are removed simultaneously in a distillation column reactor using a reduced nickel catalyst. The mercaptans and H2S are reacted with the diolefins to form sulfides which are higher boiling than that portion of the naphtha which is used as feed to the etherification unit. The higher boiling sulfides are removed as bottoms along with any C6 and heavier materials. Any diolefins not converted to sulfides are selectively hydrogenated to mono-olefins for use in the etherification process.Type: GrantFiled: July 18, 2001Date of Patent: August 27, 2002Assignee: Catalytic Distillation TechnologiesInventors: Dennis Hearn, Gary R. Gildert, Hugh M. Putman
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Patent number: 6436863Abstract: 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: December 5, 2000Date of Patent: August 20, 2002Assignee: Phillips Petroleum CompanyInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 6423188Abstract: The present invention provides a substantially remote operable system for connecting and disconnecting a vessel. The system comprises a substantially remotely operable joint connector for connecting and disconnecting structural units. The system and the method using the system may also comprise a remote operable closure transport for removing a vessel closure from an opening in the vessel, and a substantially remote operable removal system for allowing material to be emptied from the vessel to increase operational efficiency.Type: GrantFiled: September 16, 1999Date of Patent: July 23, 2002Assignee: Automated Connectors Holdings, L.P.Inventor: Kelly Fetzer
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Patent number: 6423878Abstract: An apparatus for the pyrolysis (cracking) of a polymeric material consisting of a reactor provided with a molten catalyst bed and a feeding extruder for introducing the polymeric material into the catalyst bed. The process consists in the introduction of a polymeric material in the molten catalyst bed for converting a variety of polymers, side-chain plastics, linear-chain plastics and halogenated plastics, such as for example PVC, into hydrocarbon products which are useful for energy generation while avoiding the pollution problems associated with the direct combustion of plastic materials. The process can also be used for cracking mixtures of polymeric material derived from the sorting of municipal solid waste.Type: GrantFiled: August 8, 2001Date of Patent: July 23, 2002Inventor: Riccardo Reverso
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Patent number: 6420296Abstract: A catalyst comprising 0.1-99.7% by weight of at least one alumina matrix; 0.1-80% by weight of at least one globally non dealuminated Y zeolite with a lattice parameter of more than 2.438 nm, a global SiO2/Al2O3 mole ratio of less than 8, and a framework SiO2/Al2O3 mole ratio of less than 21 and more than the global SiO2/Al2O3 mole ratio; 0.1-30% by weight of at least one group VIII metal and/or 1-40% by weight of at least one group VIB metal (% oxide); 0.1-20% by weight of at least one promoter element selected from the group formed by boron and silicon (% oxide); 0-20% by weight of at least one group VIIA element; 0-20% by weight of phosphorous (% oxide); 0.1-20% by weight of at least one group VIIB element, useful for hydrocracking processes, especially at low pressures of 7.5 to 11 MPa.Type: GrantFiled: May 5, 1999Date of Patent: July 16, 2002Assignee: Institut Francais du PetroleInventors: Samuel Mignard, Nathalie George-Marchal, Slavik Kasztelan
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Patent number: 6417136Abstract: 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: September 17, 1999Date of Patent: July 9, 2002Assignee: Phillips Petroleum CompanyInventors: Tin-Tack Peter Cheung, Darin B. Tiedtke, Marvin M. Johnson, Gary A. Delzer
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Patent number: 6416658Abstract: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into a light boiling range naphtha and a heavy boiling range naphtha, which have been treated to covert mercaptans in the fractions to H2S, which is separated with and separated from the light naphtha wherein the improvement is a further hydrodesulfurization by contacting the light boiling range naphtha with hydrogen in countercurrent flow in a fixed bed of hydrodesulfurization catalyst to remove recombinant mercaptans which are formed by the reverse reaction of H2S with olefins in the naphtha during the initial hydrodesulfurization.Type: GrantFiled: October 19, 2000Date of Patent: July 9, 2002Assignee: Catalytic Distillation TechnologiesInventors: Mario J. Maraschino, Montri Vichailak, Bertrand Klussman, Harjeet Virdi
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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: 6409910Abstract: The invention relates to a process for eliminating halogenated compounds that are contained in a gas or a liquid that comprises hydrogen and unsaturated hydrocarbons, in which the gas or the liquid is successively brought into contact with: at least one catalyst for hydrogenation, then at least one adsorbent of halogenated compounds. This gas or this liquid can be obtained from. a regenerative-type catalytic reforming.Type: GrantFiled: June 25, 1999Date of Patent: June 25, 2002Assignee: Institut Francais du PetroleInventor: Christophe Nedez
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Patent number: 6406615Abstract: The invention relates to a method of heavy oil hydrogenation, precisely to a method of heavy oil hydrogenation for which a part of the catalyst to be used is a regenerated catalyst, and concretely to a method of heavy oil denitrification and to a method of heavy of desulfurization. It is characterized in that heavy oil is passed through a layer of a regenerated catalyst or a layer containing a regenerated catalyst. With the specific catalyst disposition employed in the method, heavy oil can be well hydrogenated under the same conditions as those for ordinary heavy oil hydrogenation with fresh catalysts. The method is significantly effective for efficient utilization of used catalysts.Type: GrantFiled: March 1, 2000Date of Patent: June 18, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Ryuichiro Iwamoto, Takao Nozaki
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Patent number: 6406614Abstract: A catalyst composition containing a zeolite and platinum, and a method of preparing such catalyst composition, are disclosed. The thus-obtained catalyst composition is employed in the conversion of a hydrocarbon to aromatics.Type: GrantFiled: December 22, 1999Date of Patent: June 18, 2002Assignee: Phillips Petroleum CompanyInventors: Darin B. Tiedtke, Tin-Tack Peter Cheung, Daniel Resasco, Gary Jacobs
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Patent number: 6398946Abstract: A process for making a lube base stock wherein a highly paraffinic feedstock (with boiling points within the range of from 258° to 1100° F.) is dehydrogenated to produce an olefinic feedstock, which is oligomerized to produce an oligomerized product, which is separated into a lighter fraction and a heavier fraction. That heavier fraction has a flash point within the lube base oil range.Type: GrantFiled: December 22, 1999Date of Patent: June 4, 2002Assignee: Chevron U.S.A., Inc.Inventors: Dennis J. O'Rear, Thomas V. Harris
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Patent number: 6399813Abstract: A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.Type: GrantFiled: August 14, 2001Date of Patent: June 4, 2002Assignee: The Standard Oil CompanyInventors: Patricia Rae Blum, Larry Michael Cirjak, Marc Anthony Pepera, Christos Paparizos, George Frederick Salem, Michael James Baker
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Patent number: 6399845Abstract: Process for isomerisation of a hydrocarbonaceous feedstock substantially boiling in the gasoline range which feedstock comprises linear paraffins having at least five carbon atoms wherein the feedstock is contacted in the presence of hydrogen at elevated temperature and pressure with a catalyst comprising in combination platinum (Pt) and palladium (Pd) each in metallic form supported on an acidic amorphous alumina or molecular sieve, and isomerised hydrocarbons preprared by the process.Type: GrantFiled: November 23, 1999Date of Patent: June 4, 2002Assignee: Fortum Oil & Gas OyInventors: Pirkko Raulo, Outi Piirainen, Juha-Pekka Aalto
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Patent number: 6395676Abstract: A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.Type: GrantFiled: June 30, 1999Date of Patent: May 28, 2002Assignee: The Standard Oil CompanyInventors: Patricia Rae Blum, Larry Michael Cirjak, Marc Anthony Pepera, Christos Paparizos, George Frederick Salem, Michael James Baker
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Patent number: 6395942Abstract: Compounds that inhibit polymerization of vinyl aromatic compounds need to operate at temperatures of about 90° C. to about 150° C. A process for increasing the thermal stability of inhibitors such as N,N′-di-2-butyl-N,N′-dinitroso-1,4-diaminobenzene is disclosed. The process comprises adding to the inhibitor a stabilizer such as N,N′-di-2-butyl-1,4-diaminobenzene. The mixture of inhibitor and stabilizer is also used to inhibit polymerization of vinyl aromatic compounds.Type: GrantFiled: August 10, 1999Date of Patent: May 28, 2002Assignee: UOP LLCInventors: Paul R. Kurek, Robert R. Frame
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Patent number: 6395943Abstract: A process is disclosed for inhibiting the polymerization of vinyl aromatic compounds, such as styrene, during its distillation. The process involves adding a mixture of at least two inhibitors to the vinyl aromatic compound. One such combination is N,N′-di-2-butyl-N,N′,4-dinitroso-1,4-diaminobenzene and dinitrocresol. A stabilizer such as N,N′-di-2-butyl-1,4-diaminobenzene can also be added.Type: GrantFiled: August 10, 1999Date of Patent: May 28, 2002Assignee: UOP LLCInventors: Paul R. Kurek, Robert R. Frame