Patents by Inventor Jocelyn A. Kowalski
Jocelyn A. Kowalski 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: 9849440Abstract: Disclosed is a process for the conversion of acyclic C5 feedstock to a product comprising cyclic C5 compounds, such as for example, cyclopentadiene, and catalyst compositions for use in such process. The process comprising the steps of contacting said feedstock and, optionally, hydrogen under acyclic C5 conversion conditions in the presence of a catalyst composition to form said product. The catalyst composition comprises a Group 10 metal, and, optionally, a Group 11 metal, on a catalyst support with a Group 1 alkali metal silicate and/or a Group 2 alkaline earth metal silicate.Type: GrantFiled: October 7, 2016Date of Patent: December 26, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: Larry L. Iaccino, Jeremy W. Bedard, Tilman W. Beutel, Jocelyn A. Kowalski
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Publication number: 20170121247Abstract: Disclosed is a process for the conversion of acyclic C5 feedstock to a product comprising cyclic C5 compounds, such as for example, cyclopentadiene, and catalyst compositions for use in such process. The process comprising the steps of contacting said feedstock and, optionally, hydrogen under acyclic C5 conversion conditions in the presence of a catalyst composition to form said product. The catalyst composition comprises a Group 10 metal, and, optionally, a Group 11 metal, on a catalyst support with a Group 1 alkali metal silicate and/or a Group 2 alkaline earth metal silicate.Type: ApplicationFiled: October 7, 2016Publication date: May 4, 2017Inventors: Larry L. Iaccino, Jeremy W. Bedard, Tilman W. Beutel, Jocelyn A. Kowalski
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Patent number: 8841227Abstract: A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises a support and molybdenum or a compound thereof dispersed on the support. The support comprises an aluminosilicate zeolite combined with a binder selected from silica, titania, zirconia and mixtures thereof. The catalyst is substantially free of aluminum external to the framework of the aluminosilicate zeolite.Type: GrantFiled: December 22, 2008Date of Patent: September 23, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Neeraj Sangar, Jocelyn A. Kowalski, Larry L. Iaccino, Kenneth R. Clem
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Patent number: 8263517Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.Type: GrantFiled: December 18, 2008Date of Patent: September 11, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Christine N. Elia, Mohan Kalyanaraman, Lei Zhang, Madhav Acharya, Michael A. Daage, Darden Sinclair, Jocelyn A. Kowalski, Jose G. Santiesteban, Ajit B. Dandekar
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Publication number: 20100331592Abstract: A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises a support and molybdenum or a compound thereof dispersed on the support. The support comprises an aluminosilicate zeolite combined with a binder selected from silica, titania, zirconia and mixtures thereof. The catalyst is substantially free of aluminum external to the framework of the aluminosilicate zeolite.Type: ApplicationFiled: December 22, 2008Publication date: December 30, 2010Inventors: Neeraj Sangar, Jocelyn A. Kowalski, Larry L. Iaccino, Kenneth R. Clem
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Publication number: 20090186754Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.Type: ApplicationFiled: December 18, 2008Publication date: July 23, 2009Inventors: Christine Elia, Mohan Kalyanaraman, Lei Zhang, Madhav Acharya, Michael A. Daage, Darden Sinclair, Jocelyn A. Kowalski, Jose G. Santiesteban, Ajit B. Dandekar
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Patent number: 6407279Abstract: An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a carbonation catalyst to provide a corresponding cyclic carbonate and impurities and the cyclic carbonate, which contains the impurities, is then reacted with an aliphatic monohydric alcohol in the presence of a transesterification catalyst to provide a corresponding dialkyl carbonate and diol.Type: GrantFiled: November 19, 1999Date of Patent: June 18, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: J. Scott Buchanan, Zhaozhong Jiang, Jocelyn A. Kowalski, Jose G. Santiesteban
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Patent number: 5994550Abstract: A process is provided for producing pyridine and/or alkylpyridine compounds comprising reacting a feedstream of ammonia and at least one C.sub.1-5 carbonyl reactant under conversion conditions and in the presence of a phosphorus-modified molecular sieve containing catalyst to produce a product stream having a pyridine and/or a pyridine based compound selected from alkylpyridines or polyalkylpyridines. The catalyst has improved attrition resistance without affecting catalyst activity or selectivity.Type: GrantFiled: December 30, 1998Date of Patent: November 30, 1999Assignee: Mobil Oil CorporationInventors: Girish K. Chitnis, Jocelyn A. Kowalski, John P. Mc Williams, Yung-Yang Huang, Chaya R. Venkat
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Patent number: 5908547Abstract: There is provided a catalyst comprising yttrium containing zeolite Y. The zeolite Y is essentially free of rare earth ions. There is also provided a method for making this catalyst. There is further provided a process for using this catalyst for cracking gas oils. It has been discovered that when yttrium is incorporated into this zeolite Y, and when this catalyst is used to crack gas oils, these results improved gasoline selectivity and reduced dry gas make.Type: GrantFiled: July 15, 1993Date of Patent: June 1, 1999Assignee: Mobil Oil CorporationInventors: Girish K. Chitnis, Jocelyn A. Kowalski
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Patent number: 5658454Abstract: A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphor and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation which has higher cracking activity than analogous catalysts prepared without phosphorus. The crystalline metallosilicate be used in the as-synthesized form or in the calcined form. included is the method to produce the catalyst composition and methods for the use of catalysts prepared by the present method in organic conversion processes. Specific embodiments of the invention involve various techniques for preparation of catalyst containing phosphorus and crystalline metallosilicates having the structure of zeolite Beta. Catalysts prepared according to the method of this invention are useful for organic compound, e.g., hydrocarbon compound, conversion processes. Organic compound conversion processes include cracking, hydrocracking, and transalkylation, among others.Type: GrantFiled: June 5, 1995Date of Patent: August 19, 1997Assignee: Mobil Oil CorporationInventors: Robert P. L. Absil, Thomas F. Degnan, George H. Hatzikos, Jocelyn A. Kowalski, Thomas Mebrahtu, Grant H. Yokomizo
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Patent number: 5514632Abstract: Silicon-containing species which evolve from the calcination of silicone treated catalysts may be removed by the use of an alumina-containing guard bed. The method is particularly useful for the production of silicone treated ZSM-5 catalysts.Type: GrantFiled: January 9, 1995Date of Patent: May 7, 1996Assignee: Mobil Oil CorporationInventors: Arthur W. Chester, Jocelyn A. Kowalski
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Patent number: 5470810Abstract: This invention relates to the catalyst composition resulting from the addition of phosphorus, and optionally, a matrix material, to a porous crystalline material having the structure of MCM-22, along with the method for making the catalyst composition, and the method for using the catalyst composition in catalytic cracking. It is desirable to improve the hydrothermal stability of the catalysts which are based upon porous crystalline materials having the X-ray structure of MCM-22 to increase the activity that the catalyst maintains after repeated cycles of steaming such as is experienced in the FCC process. It has been found that phosphorus addition to a porous crystalline material having the structure of MCM-22 improves the hydrothermal stability of the resulting catalyst. This improved catalyst is useful in organic conversion processes, e.g., catalytic cracking processes.Type: GrantFiled: February 2, 1994Date of Patent: November 28, 1995Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Anthony S. Fung, George H. Hatzikos, Gordon J. Kennedy, Jocelyn A. Kowalski
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Patent number: 5456821Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve component and an additive catalyst component, said additive catalyst component having been formulated in a special way to provide an improved catalyst and conversion process. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, and increased lower olefins, especially propylene and butylene.Type: GrantFiled: August 17, 1994Date of Patent: October 10, 1995Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Jocelyn A. Kowalski
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Patent number: 5457078Abstract: A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphorus, and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation and which has higher cracking activity than analogous catalysts prepared without phosphorus. The crystalline metallosilicate may be used in the as-synthesized form or in the calcined form. Also included is the method to produce the catalyst composition and methods for the use of catalysts prepared by the present method in organic conversion processes. Specific embodiments of the invention involve various techniques for preparation of catalysts containing phosphorus and crystalline metallosilicates having the structure of zeolite Beta. Catalysts prepared according to the method of this invention are useful for organic compound, e.g., hydrocarbon compound, conversion processes.Type: GrantFiled: November 29, 1993Date of Patent: October 10, 1995Assignee: Mobil Oil CorporationInventors: Robert P. L. Absil, Thomas F. Degnan, George H. Hatzikos, Jocelyn A. Kowalski, Thomas Mebrahtu, Grant H. Yokomizo
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Patent number: 5366948Abstract: A catalyst composition is provided which comprises a large-pore molecular sieve component and an additive catalyst component, said additive catalyst component having been formulated in a special way to provide an improved catalyst and conversion process. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, and increased lower olefins, especially propylene and butylene.Type: GrantFiled: July 13, 1993Date of Patent: November 22, 1994Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Jocelyn A. Kowalski
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Patent number: 5318696Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve material and an additive catalyst composition comprising crystalline material having the structure of ZSM-5 and a silica/alumina mole ratio of less than about 30. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, increased alkylate and potential alkylate, and increased lower olefins, especially propylene.Type: GrantFiled: December 11, 1992Date of Patent: June 7, 1994Assignee: Mobil Oil CorporationInventor: Jocelyn A. Kowalski
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Patent number: 5258341Abstract: There is provided a catalyst comprising yttrium containing zeolite Y. The zeolite Y is essentially free of rare earth ions. There is also provided a method for making this catalyst. There is further provided a process for using this catalyst for cracking gas oils. It has been discovered that when yttrium is incorporated into this zeolite Y, and when this catalyst is used to crack gas oils, these results improved gasoline selectivity and reduced dry gas make.Type: GrantFiled: July 27, 1992Date of Patent: November 2, 1993Assignee: Mobil Oil Corp.Inventors: Girish K. Chitnis, Jocelyn A. Kowalski
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Patent number: 5232579Abstract: A catalytic cracking process for converting a hydrocarbon fraction, preferably boiling in the range of a heavy gas oil, is disclosed in which the cracking catalyst is a large crystal fully crystalline zeolite Beta having a broad range of silica-to-alumina mole ratios, i.e. 20->1000. The zeolite Beta catalyst is synthesized with a nitrogenous organic chelating agent, such as a tertiary alkanolamine, preferably triethanolamine, in the synthesis mixture along with at least one source of organic directing agent such as tetraethylammonium hydroxide, tetraethylammonium bromide and tetraethylammonium fluoride. The zeolite Beta can be used as a stand alone catalyst or an additive catalyst for hydrocarbon cracking reactions along with another molecular seive type catalyst such as a faujasite catalyst or ZSM-5. The large crystal zeolite Beta can also be treated with a source of phosphorus to enhance the properties of the zeolite.Type: GrantFiled: June 14, 1991Date of Patent: August 3, 1993Assignee: Mobil Oil CorporationInventors: Robert P. L. Absil, Joseph A. Herbst, Jocelyn A. Kowalski, Mae K. Rubin
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Patent number: 5126298Abstract: The present invention is directed to a novel catalyst useful in the cracking of hydrocarbons. The catalyst of the present invention is formed with at least one zeolite, a first clay having a first average particle size and a second clay having a smaller average particle size than the first clay, wherein at least one of the clays or the zeolite is first treated with a source of phosphorus, such as phosphoric acid. These components are mixed in a slurry and spray dried at a low pH. Thus the present invention is also directed to a process for preparing a zeolite catalyst. The catalysts of the present invention advantageously do not require calcination in order to obtain low attritability.Type: GrantFiled: March 12, 1991Date of Patent: June 30, 1992Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Jocelyn A. Kowalski