Patents by Inventor Roland H. Heck
Roland H. Heck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5611912Abstract: A process for the production of diesel fuel with a high cetane number at a low cloud point, which involves hydrocracking highly aromatic fractions obtained from catalytic cracking operations. The fraction of hydrocracker effluent which boils between about 400.degree. F. (205.degree. C.) and 1000.degree. F. (538.degree. C.) is subsequently catalytically dewaxed in order to obtain a cloud point of no more than 41.degree. F. (5.degree. C.). The hydrocracker effluent fraction is preferably recycled to the hydrocracking step prior to dewaxing.Type: GrantFiled: January 5, 1996Date of Patent: March 18, 1997Assignee: Mobil Oil CorporationInventors: Scott Han, Roland H. Heck, Michael E. Ehlers
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Patent number: 5475181Abstract: The present invention relates to a process for the oligomerization of ethene to a product rich in isobutylene comprising contacting a feedstock comprising ethene under oligomerization conditions with a catalyst composition comprising a porous crystalline silicate having the structure of ZSM-35 zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by a) coking or b) chemisorption of a surface-deactivating agent, e.g., collidine, which possesses an average cross section diameter greater than that of the zeolite pores.Type: GrantFiled: April 18, 1994Date of Patent: December 12, 1995Assignee: Mobil Oil CorporationInventors: Frank T. DiGuiseppi, Scott Han, Roland H. Heck
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Patent number: 5466361Abstract: Aqueous sulfur and caustic component-containing waste streams are disposed of in an environmentally acceptable manner employing a process featuring integrated coking and gasification operations.Type: GrantFiled: October 28, 1993Date of Patent: November 14, 1995Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Heinz Heinemann, P. T. Reischman, Paul B. Venuto, D. Duayne Whitehurst
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Patent number: 5449849Abstract: The present invention relates to a catalyst and its use in a process for the conversion of ethene to a product rich in linear butenes, especially 2-butene, comprising contacting a feedstock comprising ethene under dimerization conditions with a catalyst composition comprising a porous crystalline silicate having the structure of ZSM-35 which has been treated by a) fluoriding, e.g., with NH.sub.4 F, and then b) at least partially surface deactivated for acid catalyzed reactions by chemisorption of a surface-deactivating agent which possesses an average cross section diameter greater than that of the zeolite pores, e.g., collidine.Type: GrantFiled: April 18, 1994Date of Patent: September 12, 1995Assignee: Mobil Oil CorporationInventors: Frank T. DiGuiseppi, Scott Han, Roland H. Heck
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Patent number: 5374350Abstract: Heavy oil is hydrotreated by processing with hydrogen in the presence of a catalyst composition comprising an activated carbon component having a specified range of pore volume distribution and average pore diameter, a molybdenum or tungsten component and a cobalt or nickel component to reduce the content of nickel and vanadium therein and to achieve demetallation and conversion of the carbon residue for producing a lighter oil.Type: GrantFiled: January 13, 1993Date of Patent: December 20, 1994Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Lillian A. Rankel
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Patent number: 5362382Abstract: Heavy oils are advantageously preconditioned by heat soaking prior to hydrotreating with a dispersed metal catalyst to reduce coking in a two stage hydrotreating process. The effluent of a hydrotreating process is filtered to recover catalytically active coke which is recovered by backflushing and recycled to the feed stream. A mild solvent deasphalting step isolates metals in a reduced volume asphaltene fraction.Type: GrantFiled: June 24, 1991Date of Patent: November 8, 1994Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Frank T. DiGuiseppi
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Patent number: 5264643Abstract: Light olefins are converted to heavier hydrocarbon products, e.g., those boiling in the gasoline, distillate, and/or lube range, under oligomerization reaction conditions in the presence of catalyst comprising zeolite MCM-49.Type: GrantFiled: December 9, 1992Date of Patent: November 23, 1993Assignee: Mobil Oil Corp.Inventors: Frank T. DiGuiseppi, Scott Han, Roland H. Heck
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Patent number: 5258115Abstract: A refinery derived spent caustic is recycled by introducing the spent caustic to a delayed coking drum while conducting delayed coking of a hydrocarbon feedstock. The alkali metal containing material accelerates coking, induces production of shot coke, alleviates the problem of a hot drum and reduces drum cooling time.Type: GrantFiled: September 16, 1992Date of Patent: November 2, 1993Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Tom Reischman, Gerald J. Teitman, Salvatore T. M. Viscontini
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Patent number: 5250484Abstract: A surface-inactivated catalyst composition comprising acidic porous crystalline material, e.g., ZSM-23, having active internal Bronsted acid sites and containing surface-inactivating material having a boron to nitrogen bond is prepared by contacting the surface with aqueous ammonia borane solution. The catalyst may be used for organic compound conversion, e.g., oligomerization of lower olefins to produce distillate boiling range materials having reduced methyl branching and increased cetane number.Type: GrantFiled: November 26, 1991Date of Patent: October 5, 1993Assignee: Mobil Oil CorporationInventors: Jeffrey S. Beck, Roland H. Heck, Jose G. Santiesteban
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Patent number: 5237120Abstract: A method is disclosed for the double bond isomerization of alpha olefin-containing feeds, e.g., conversion of 1-butene-containing hydrocarbon streams to 2-butene-rich product streams, wherein oligomer by-products are minimized. The process uses a catalyst composition comprising a zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by chemisorption of a surface-deactivating agent, e.g., collidine, which possesses an average cross section diameter greater than that of the zeolite pores.Type: GrantFiled: December 27, 1991Date of Patent: August 17, 1993Assignee: Mobil Oil CorporationInventors: Werner O. Haag, Roland H. Heck, Jose G. Santiesteban, David S. Shihabi
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Patent number: 5234875Abstract: A surface-inactivated catalyst composition comprising acidic porous crystalline material, e.g., ZSM-23, having active internal Bronsted acid sites and containing coke-inactivated external acid sites is prepared by contacting the catalyst under high pressure coking conditions, e.g. 800 psig. The catalyst may be used for organic compound conversion, e.g., oligomerization of lower olefins to produce distillate boiling range materials having reduced methyl branching and increased cetane number.Type: GrantFiled: December 11, 1991Date of Patent: August 10, 1993Assignee: Mobil Oil CorporationInventors: Scott Han, Roland H. Heck, Frank T. DiGuiseppi
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Patent number: 4442023Abstract: An improved hydrotreating catalyst, and a process for using thereof, comprises a conventional Group VIA and Group VIIIA metal oxide or metal sulfide, deposited on an inorganic refractory support and about 0.1% by weight to about 7% by weight of the catalyst of a promoter comprising a halogenated metal selected from the Group consisting of halogenated metals of Group IB, IIB, IIIB, titanium and tin. The presence of the promoter results in greater degree of desulfurization and in CCR reduction of hydrocarbon feedstocks, especially highly aromatic petroleum residue and synthetically-derived hydrocarbons, e.g., coal liquids.Type: GrantFiled: February 17, 1983Date of Patent: April 10, 1984Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Edward J. Rosinski, Stuart S. Shih
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Patent number: 4430198Abstract: An improved hydrotreating catalyst, and a process for using thereof, comprises a conventional Group VIA and Group VIIIA metal metal oxide or metal sulfide, deposited on an inorganic refractory support and about 0.1% by weight to about 7% by weight of the catalyst of a promoter comprising a halogenated metal selected from the Group consisting of halogenated metals of Group IB, IIB, IIIB, titanium and tin. The presence of the promoter results in greater degree of desulfurization and in CCR reduction of hydrocarbon feedstocks, especially highly aromatic petroleum residua and synthetically-derived hydrocarbons, e.g., coal liquids.Type: GrantFiled: September 28, 1982Date of Patent: February 7, 1984Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Edward J. Rosinski, Stuart S. Shih
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Patent number: 4357263Abstract: Desulfurization, denitrogenation, deoxygenation and CCR reduction of highly aromatic petroleum and coal derived liquids are conducted with hydrogen and with a refractory base catalyst incorporating at least one Group VIA metal and at least one Group VIII metal. The catalyst has a surface area of between about 100 and 300 m.sup.2 /g and a total pore volume of between about 0.3 and 1.Type: GrantFiled: December 16, 1980Date of Patent: November 2, 1982Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Stephen M. Cleck, Stuart S. Shih, Robert C. Wilson
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Patent number: 4267033Abstract: Desulfurization, denitrogenation, deoxygenation and CCR reduction of highly aromatic petroleum and coal derived liquids are conducted with hydrogen and with a refractory base catalyst incorporating at least one Group VIA metal and at least one Group VIII metal. The catalyst has a surface area of between about 100 and 300 m.sup.2 /g and a total pore volume of between about 0.3 and 1.Type: GrantFiled: October 22, 1979Date of Patent: May 12, 1981Assignee: Mobil Oil CorporationInventors: Roland H. Heck, Stephen M. Oleck, Stuart S. Shih, Robert C. Wilson
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Patent number: 4221654Abstract: Compatibility of solvent refined coal and other coal liquids with conventional petroleum fuels is improved by moderate catalytic hydrogenation of the solvent refined coal liquid to a hydrogen to carbon atomic ratio less than that of corresponding petroleum fractions. As degree of hydrogenation of solvent refined coal is increased, compatibility with petroleum fractions of like boiling range increases to a maximum measured by precipitation of sediment from the blend of equal parts of the two fuels. That maximum is achieved at a hydrogen/carbon ratio below that of the corresponding petroleum fractions. As that ratio is increased toward the ratio characteristic of a like petroleum fraction, compatibility is impaired.Type: GrantFiled: June 7, 1978Date of Patent: September 9, 1980Assignee: Electric Power Research InstituteInventors: Thomas R. Stein, Roland H. Heck, Albert V. Cabal
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Patent number: 4200521Abstract: In the hydroprocessing of blends of solvent refined coal and recycle solvent, small pore hydrotreating catalysts cause separation of a solid phase from treating blends containing high concentration of solvent refined coal.Type: GrantFiled: June 7, 1978Date of Patent: April 29, 1980Assignee: Electric Power Research Institute, Inc.Inventors: Thomas R. Stein, Roland H. Heck, Michael J. Dabkowski