Patents by Inventor Christopher F. Dean
Christopher F. Dean 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: 9458394Abstract: A process for producing a product stream consisting primarily of the lower olefins ethylene, propylene and butylenes, and of gasoline is provided. The process includes cracking a mixture of paraffinic naphtha feedstream and regenerated catalyst in a downflow reactor. The reaction product stream is separated from the spent catalyst and subsequently fractionated into individual product streams, while the spent catalyst is regenerated and recycled.Type: GrantFiled: July 27, 2012Date of Patent: October 4, 2016Assignee: Saudi Arabian Oil CompanyInventors: Christopher F. Dean, Allan Birkett Fox, Daniel C. Longstaff
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Patent number: 9403155Abstract: The present invention concerns a novel additive composition for reducing sulfur content of a catalytically cracked gasoline fraction. This additive composition comprises a support consisting of porous clay into which a first metal from group IVB is incorporated and a second metal from group IIB is impregnated. Preferably, the first incorporated metal is zirconium and the second impregnated metal is zinc. The sulfur reduction additive is used in the form of a separate particle in combination with a conventional cracking catalyst in a fluidized catalytic cracking process to convert hydrocarbon feed stocks into gasoline having comparatively lower sulfur content and other liquid products.Type: GrantFiled: February 7, 2013Date of Patent: August 2, 2016Assignees: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALInventors: Christopher F. Dean, Musaed Salem Musaed Al-Ghrami Al-Ghamdi, Khurshid K. Alam, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Patent number: 9211525Abstract: Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit.Type: GrantFiled: July 30, 2009Date of Patent: December 15, 2015Assignees: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM & MINERALSInventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Patent number: 8927451Abstract: Compositions and processes for their use as additives for reducing the sulfur content of FCC gasoline employ a support material montmorillonite clay material. A fluid catalytic cracking (FCC) mixture, therefore, is provided comprising an FCC catalyst and separate particles of sulfur reduction additive consisting of porous montmorillonite clay.Type: GrantFiled: December 26, 2013Date of Patent: January 6, 2015Assignees: Saudi Arabian Oil Company, King Fahd University of Pertroleum & MineralsInventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Patent number: 8877042Abstract: The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a heavy oil feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the heavy oil and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to heavy oils that can be processed under relatively harsher conditions, while minimizing production of undesired by-products.Type: GrantFiled: May 19, 2011Date of Patent: November 4, 2014Assignees: Saudi Arabian Oil Company, Nippon Oil CorporationInventors: Christopher F. Dean, Yuichiro Fujiyama, Takata Okuhara
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Publication number: 20140106958Abstract: Compositions and processes for their use as additives for reducing the sulfur content of FCC gasoline employ a support material montmorillonite clay material. A fluid catalytic cracking (FCC) mixture, therefore, is provided comprising an FCC catalyst and separate particles of sulfur reduction additive consisting of porous montmorillonite clay.Type: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Applicants: King Fahd University of Petroleum & Minerals, Saudi Arabian Oil CompanyInventors: Abdennour BOURANE, Omer Refa KOSEOGLU, Musaed Salem AL-GHRAMI, Christopher F. DEAN, Mohammed Abdul Bari SIDDIQUI, Shakeel AHMED
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Patent number: 8623199Abstract: Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit.Type: GrantFiled: July 30, 2009Date of Patent: January 7, 2014Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Publication number: 20130210613Abstract: The present invention concerns a novel additive composition for reducing sulfur content of a catalytically cracked gasoline fraction. This additive composition comprises a support consisting of porous clay into which a first metal from group IVB is incorporated and a second metal from group IIB is impregnated. Preferably, the first incorporated metal is zirconium and the second impregnated metal is zinc. The sulfur reduction additive is used in the form of a separate particle in combination with a conventional cracking catalyst in a fluidized catalytic cracking process to convert hydrocarbon feed stocks into gasoline having comparatively lower sulfur content and other liquid products.Type: ApplicationFiled: February 7, 2013Publication date: August 15, 2013Applicants: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Saudi Arabian Oil CompanyInventors: Christopher F. DEAN, Musaed Salem Musaed Al-Ghrami AL-GHAMDI, Khurshid K. ALAM, Mohammed Abdul Bari SIDDIQUI, Shakeel AHMED
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Publication number: 20130137909Abstract: A process for producing a product stream consisting primarily of the lower olefins ethylene, propylene and butylenes, and of gasoline is provided. The process includes cracking a mixture of paraffinic naphtha feedstream and regenerated catalyst in a downflow reactor. The reaction product stream is separated from the spent catalyst and subsequently fractionated into individual product streams, while the spent catalyst is regenerated and recycled.Type: ApplicationFiled: July 27, 2012Publication date: May 30, 2013Inventors: Christopher F. DEAN, Allan Birkett FOX, Daniel C. LONGSTAFF
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Patent number: 8409428Abstract: The present invention concerns a novel additive composition for reducing sulfur content of a catalytically cracked gasoline fraction. This additive composition comprises a support consisting of porous clay into which a first metal from group IVB is incorporated and a second metal from group IIB is impregnated. Preferably, the first incorporated metal is zirconium and the second impregnated metal is zinc. The sulfur reduction additive is used in combination with a conventional cracking catalyst in a fluidized catalytic cracking process to convert hydrocarbon feed stocks into gasoline having comparatively lower sulfur content and other liquid products.Type: GrantFiled: June 28, 2006Date of Patent: April 2, 2013Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and MineralsInventors: Christopher F. Dean, Musaed Salem Musaed Al-Ghrami Al-Ghamdi, Khurshid K. Alam, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Publication number: 20110240520Abstract: The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a virgin paraffinic naphtha feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the naphtha and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to paraffinic naphtha that can be processed under relatively harsher conditions, while minimizing production of undesired by-products and reducing the formation of coke on the catalyst.Type: ApplicationFiled: June 9, 2011Publication date: October 6, 2011Inventor: Christopher F. Dean
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Publication number: 20110226668Abstract: The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a heavy oil feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the heavy oil and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to heavy oils that can be processed under relatively harsher conditions, while minimizing production of undesired by-products.Type: ApplicationFiled: May 19, 2011Publication date: September 22, 2011Inventors: Christopher F. DEAN, Yuichiro Fujiyama, Takata Okuhara
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Publication number: 20110120912Abstract: Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit.Type: ApplicationFiled: July 30, 2009Publication date: May 26, 2011Inventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Publication number: 20100032343Abstract: Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit.Type: ApplicationFiled: July 30, 2009Publication date: February 11, 2010Inventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Publication number: 20080011645Abstract: The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a virgin paraffinic naphtha feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the naphtha and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to paraffinic naphtha that can be processed under relatively harsher conditions, while minimizing production of undesired by-products and reducing the formation of coke on the catalyst.Type: ApplicationFiled: July 13, 2006Publication date: January 17, 2008Inventor: Christopher F. Dean
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Publication number: 20080011644Abstract: The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a heavy oil feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the heavy oil and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to heavy oils that can be processed under relatively harsher conditions, while minimizing production of undesired by-products.Type: ApplicationFiled: July 13, 2006Publication date: January 17, 2008Inventors: Christopher F. Dean, Yuichiro Fujiyama, Takata Okuhara