Patents by Inventor William A. Wachter
William A. Wachter 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: 8715487Abstract: This invention relates to the composition, method of making and use of a fluidized catalytic cracking (“FCC”) catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 ? (angstrom) range as determined by nitrogen adsorption measurements. FCC catalysts made from this new zeolite exhibit improved rates of heavy oil cracking heavy oil bottoms conversions and gasoline conversions. The fluidized catalytic cracking catalysts herein are particularly useful in fluidized catalytic cracking (“FCC”) processes for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms.Type: GrantFiled: February 17, 2011Date of Patent: May 6, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Jianxin Jason Wu, William A. Wachter, Colin L. Beswick, Edward Thomas Habib, Jr., Terry G. Roberie, Ruizhong Hu
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Publication number: 20130131419Abstract: A fluid catalytic cracking catalyst exhibiting reduced coke make comprises a zeolite cracking component in a matrix of gibbsite having a median particle size of not more than 0.4 microns and preferably not more than 0.3 microns. The zeolite cracking component will normally be a faujasite, with preference to zeolite Y in its various forms such as Y, HY, REY, REHY, USY, REUSY and secondary zeolite additives may be present, including ZSM-5.Type: ApplicationFiled: November 22, 2011Publication date: May 23, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: John Scott Buchanan, William A. Wachter, Kun Wang, Kathryn L. Peretti, Daniel Mark Giaquinta, Hongyi Hou
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Publication number: 20110224068Abstract: This invention relates to the composition, method of making and use of a fluidized catalytic cracking (“FCC”) catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 ? (angstrom) range as determined by nitrogen adsorption measurements. FCC catalysts made from this new zeolite exhibit improved rates of heavy oil cracking heavy oil bottoms conversions and gasoline conversions. The fluidized catalytic cracking catalysts herein are particularly useful in fluidized catalytic cracking (“FCC”) processes for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms.Type: ApplicationFiled: February 17, 2011Publication date: September 15, 2011Applicant: W.R. Grace & Co.-Conn.Inventors: Edward T. Habib, JR., Ruizhong Hu, Terry G. Roberie, Jianxin Jason Wu, William A. Wachter, Colin L. Beswick
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Publication number: 20110220549Abstract: This invention relates to the composition, method of making and use of a fluidized catalytic cracking (“FCC”) catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 ? (angstrom) range as determined by nitrogen adsorption measurements. FCC catalysts made from this new zeolite exhibit improved rates of heavy oil cracking heavy oil bottoms conversions and gasoline conversions. The fluidized catalytic cracking catalysts herein are particularly useful in fluidized catalytic cracking (“FCC”) processes for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms.Type: ApplicationFiled: February 17, 2011Publication date: September 15, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Jianxin Jason Wu, William A. Wachter, Colin L. Beswick, Edward Thomas Habib, JR., Terry G. Roberie, Ruizhong Hu
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Publication number: 20110152062Abstract: Catalysts for experimentation are produced having a controlled matrix pore structure. The manufacturing process utilizes tape casting in the drying procedure in which a catalyst slurry is cast on a substrate and dried at a temperature of between about 50° C. to 200° C. for a period of time of about 0.1 to 1.0 hour. The dried catalyst particles can be removed from the substrate by several techniques, including scraping, burning, and deforming the substrate material, The resulting catalytic particles can be produced in an amount of about ca. 3 g to 300 g from slurries with volumes between 5 cc to 500 cc, which are suitable for small scale FCC reactors and for high throughput experimentation.Type: ApplicationFiled: December 1, 2010Publication date: June 23, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: William A. Wachter, Brenda A. Raich, Theodore E. Datz, David O. Marler, Nicholas Rollman, Jeffrey T. Elks, Gordon F. Stuntz
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Patent number: 7867937Abstract: Catalysts for experimentation are produced having a controlled matrix pore structure. The manufacturing process utilizes tape casting in the drying procedure in which a catalyst slurry is cast on a substrate and dried at a temperature of between about 50° C. to 200° C. for a period of time of about 0.1 to 1.0 hour. The dried catalyst particles can be removed from the substrate by several techniques, including scraping, burning, and deforming the substrate material. The resulting catalytic particles can be produced in an amount of about ca. 3 g to 300 g from slurries with volumes between 5 cc to 500 cc, which are suitable for small scale FCC reactors and for high throughput experimentation.Type: GrantFiled: December 11, 2007Date of Patent: January 11, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: William A. Wachter, Jeffrey T. Elks, Brenda A. Raich, Theodore E. Datz, Mary T. Van Nostrand, Gordon F. Stuntz, David O. Marler, Nicholas Rollman
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Publication number: 20090139900Abstract: This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 ? to about 10 ? and pores ranging in diameter from about 40 ? to about 500 ?, wherein in the pore range from 50 ? to 250 ?, there is a single maximum in differential pore volume distribution over the 50 ? to 250 ? range.Type: ApplicationFiled: February 3, 2009Publication date: June 4, 2009Inventors: William A. Wachter, Stephen J. McCathy, Jeffrey S. Beck, David L. Stern
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Publication number: 20090082193Abstract: This invention relates to a mesoporous catalytic cracking catalyst, a process for the production of such catalysts, and a process utilizing such catalysts in cracking operations. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises an amorphous, porous matrix having pores ranging in diameter from about 1 ? to about 10 ? and ranging in diameter from about 40 ? to about 500 ?, but substantially free of pores ranging in diameter from about 10 ? to about 40 ?.Type: ApplicationFiled: October 7, 2008Publication date: March 26, 2009Inventor: William A. Wachter
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Patent number: 7504021Abstract: This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 ? to about 10 ? and pores ranging in diameter from about 40 ? to about 500 ?, wherein in the pore range from 50 ? to 250 ?, there is a single maximum in differential pore volume distribution over the 50 ? to 250 ? range.Type: GrantFiled: April 14, 2005Date of Patent: March 17, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: William A. Wachter, Stephen J. McCarthy, Jeffrey S. Beck, David L. Stern
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Patent number: 7456123Abstract: This invention relates to a mesoporous catalytic cracking catalyst, a process for the production of such catalysts, and a process utilizing such catalysts in cracking operations. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises an amorphous, porous matrix having pores ranging in diameter from about 1 ? to about 10 ? and ranging in diameter from about 40 ? to about 500 ?, but substantially free of pores ranging in diameter from about 10 ? to about 40 ?.Type: GrantFiled: April 14, 2005Date of Patent: November 25, 2008Assignee: Exxonmobil Research and Engineering CompanyInventor: William A. Wachter
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Publication number: 20080146435Abstract: Catalysts for experimentation are produced having a controlled matrix pore structure. The manufacturing process utilizes tape casting in the drying procedure in which a catalyst slurry is cast on a substrate and dried at a temperature of between about 50° C. to 200° C. for a period of time of about 0.1 to 1.0 hour. The dried catalyst particles can be removed from the substrate by several techniques, including scraping, burning, and deforming the substrate material. The resulting catalytic particles can be produced in an amount of about ca. 3g to 300g from slurries with volumes between 5 cc to 500 cc, which are suitable for small scale FCC reactors and for high throughput experimentation.Type: ApplicationFiled: December 11, 2007Publication date: June 19, 2008Inventors: William A. Wachter, Jeffrey T. Elks, Brenda A. Raich, Theodore E. Datz, Mary T. Van Nostrand, Gordon F. Stuntz, David O. Marler, Nicholas Rollman
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Patent number: 7261807Abstract: The propylene production of a fluid catalytic cracking unit employing a large pore zeolite cracking catalyst, produces more propylene by adding a naphtha cracking riser and a medium pore zeolite catalytic component to the unit, and recycling at least a portion of the naphtha crackate to the naphtha riser. The large pore size zeolite preferably comprises a USY zeolite and the medium pore size is preferably ZSM-5. Propylene production per unit of naphtha feed to the naphtha riser is maximized, by using the 60–300° F. naphtha crackate as the feed.Type: GrantFiled: April 24, 2002Date of Patent: August 28, 2007Assignee: ExxonMobil Research and Engineering Co.Inventors: B. Erik Henry, William A. Wachter, George A. Swan, III
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Publication number: 20050269246Abstract: This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 ? to about 10 ? and pores ranging in diameter from about 40 ? to about 500 ?, wherein in the pore range from 50 ? to 250 ?, there is a single maximum in differential pore volume distribution over the 50 ? to 250 ? range.Type: ApplicationFiled: April 14, 2005Publication date: December 8, 2005Inventors: William Wachter, Stephen McCarthy, Jeffrey Beck, David Stern
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Publication number: 20050272593Abstract: This invention relates to a mesoporous catalytic cracking catalyst, a process for the production of such catalysts, and a process utilizing such catalysts in cracking operations. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises an amorphous, porous matrix having pores ranging in diameter from about 1 ? to about 10 ? and ranging in diameter from about 40 ? to about 500 ?, but substantially free of pores ranging in diameter from about 10 ? to about 40 ?.Type: ApplicationFiled: April 14, 2005Publication date: December 8, 2005Inventor: William Wachter
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Patent number: 6803494Abstract: A process for producing polypropylene from olefins selectively produced from a catalytically cracked or thermally cracked naphtha stream is disclosed herein. The naphtha stream is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500° C. to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia. The catalyst may be pre-coked with a carbonaceous feed. Alternatively, the carbonaceous feed used to coke the catalyst may be co-fed with the naphtha feed.Type: GrantFiled: May 19, 2000Date of Patent: October 12, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul K. Ladwig, John E. Asplin, Gordon F. Stuntz, William A. Wachter, Brian Erik Henry, Shun C. Fung
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Publication number: 20020189973Abstract: The propylene production of a fluid catalytic cracking unit employing a large pore zeolite cracking catalyst, produces more propylene by adding a naphtha cracking riser and a medium pore zeolite catalytic component to the unit, and recycling at least a portion of the naphtha crackate to the naphtha riser. The large pore size zeolite preferably comprises a USY zeolite and the medium pore size is preferably ZSM-5. Propylene production per unit of naphtha feed to the naphtha riser is maximized, by using the 60-300° F. naphtha crackate as the feed.Type: ApplicationFiled: April 24, 2002Publication date: December 19, 2002Inventors: B. Erik Henry, William A. Wachter, George A. Swan
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Patent number: 6339180Abstract: A process for producing polypropylene from olefins selectively produced from a catalytically cracked or thermally cracked naphtha stream is disclosed herein. The naphtha stream is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500° C. to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia.Type: GrantFiled: March 2, 2000Date of Patent: January 15, 2002Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Paul K. Ladwig, John E. Asplin, Gordon F. Stuntz, William A. Wachter, B. Erik Henry
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Publication number: 20020003103Abstract: The propylene production of a fluid catalytic cracking unit employing a large pore zeolite cracking catalyst, produces more propylene by adding a naphtha cracking riser and a medium pore zeolite catalytic component to the unit, and recycling at least a portion of the naphtha crackate to the naphtha riser. The large pore size zeolite preferably comprises a USY zeolite and the medium pore size is preferably ZSM-5. Propylene production per unit of naphtha feed to the naphtha riser is maximized, by using the 60-300° F. naphtha crackate as the feed.Type: ApplicationFiled: December 30, 1998Publication date: January 10, 2002Inventors: B. ERIK HENRY, WILLIAM A. WACHTER, GEORGE A. SWAN
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Patent number: 6313366Abstract: A process for producing propylene from a catalytically cracked or thermally cracked naphtha stream is disclosed herein. The naphtha stream is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500° C. to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia. A separate stream containing aromatics may be co-fed with the naphtha stream.Type: GrantFiled: May 19, 2000Date of Patent: November 6, 2001Assignee: ExxonMobile Chemical Patents, Inc.Inventors: Paul K. Ladwig, John E. Asplin, Gordon F. Stuntz, William A. Wachter, Brian Erik Henry, Shun C. Fung, Tan-Jen Chen, Jay F. Carpency, Ronald G. Searle
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Patent number: 6258257Abstract: A process for producing polymers from olefins selectively produced by a two stage process for selectively producing C2 to C4 olefins from a gas oil or resid is disclosed herein. The gas oil or resid is reacted in a first stage comprising a fluid catalytic cracking unit wherein it is converted in the presence of conventional large pore zeolitic catalyst to reaction products, including a naphtha boiling range stream. The naphtha boiling range stream is introduced into a second stage comprising a process unit containing a reaction zone, a stripping zone, a catalyst regeneration zone, and a fractionation zone. The naphtha feed is contacted in the reaction zone with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures ranging from about 500 to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia.Type: GrantFiled: March 2, 2000Date of Patent: July 10, 2001Assignee: ExxonMobil Research and Engineering CompanyInventors: George A. Swan, III, Michael W. Bedell, Paul K. Ladwig, John E. Asplin, Gordon F. Stuntz, William A. Wachter, B. Erik Henry