Patents by Inventor Lisa M. Wolschlag
Lisa M. Wolschlag 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: 10974238Abstract: A counter-current catalyst regenerator with at least two stages of counter-current contact is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits upward movement of catalyst to mitigate back mixing and approximate true counter-current contact and efficient combustion of coke from catalyst.Type: GrantFiled: July 18, 2018Date of Patent: April 13, 2021Assignee: UOP LLCInventors: Zhihao Fei, Lisa M. Wolschlag, Brian W. Hedrick
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Patent number: 10563135Abstract: Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.Type: GrantFiled: November 2, 2016Date of Patent: February 18, 2020Assignee: UOP LLCInventors: Zhihao Fei, Steven L. Krupa, Hosoo Lim, Charles P. Luebke, Robert Mehlberg, Christopher P. Nicholas, Lisa M. Wolschlag
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Publication number: 20180318821Abstract: A counter-current catalyst regenerator with at least two stages of counter-current contact is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits upward movement of catalyst to mitigate back mixing and approximate true counter-current contact and efficient combustion of coke from catalyst.Type: ApplicationFiled: July 18, 2018Publication date: November 8, 2018Inventors: Zhihao Fei, Lisa M. Wolschlag, Brian W. Hedrick
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Publication number: 20170240821Abstract: Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.Type: ApplicationFiled: November 2, 2016Publication date: August 24, 2017Inventors: Zhihao Fei, Steven L. Krupa, Hosoo Lim, Charles P. Luebke, Robert Mehlberg, Christopher P. Nicholas, Lisa M. Wolschlag
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Publication number: 20160168050Abstract: A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.Type: ApplicationFiled: December 12, 2014Publication date: June 16, 2016Inventors: Zhihao Fei, Charles P. Luebke, Robert L. Mehlberg, Hosoo Lim, Lisa M. Wolschlag, Paolo Palmas
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Publication number: 20160083660Abstract: A process for increasing the yields of propylene is presented. The process is an FCC process for producing light olefins, and utilizes a smaller secondary reactor that uses the same catalyst, or a different catalyst as in the FCC reactor. The FCC effluent is separated, and C4 and C5 olefins are recovered. The C4 and C5 olefins are passed to the secondary reactor for cracking to generate increased light olefin yields.Type: ApplicationFiled: September 24, 2014Publication date: March 24, 2016Inventors: Zhihao Fei, Charles P. Luebke, Hosoo Lim, Paolo Palmas, Lisa M. Wolschlag
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Patent number: 8815082Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: GrantFiled: December 12, 2011Date of Patent: August 26, 2014Assignee: UOP LLCInventors: Lisa M. Wolschlag, Lev Davydov, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Patent number: 8747657Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: GrantFiled: December 12, 2011Date of Patent: June 10, 2014Assignee: UOP LLCInventors: Lev Davydov, Lisa M. Wolschlag, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Patent number: 8747759Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: GrantFiled: December 12, 2011Date of Patent: June 10, 2014Assignee: UOP LLCInventors: Lisa M. Wolschlag, Lev Davydov, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Patent number: 8747758Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: GrantFiled: December 12, 2011Date of Patent: June 10, 2014Assignee: UOP LLCInventors: Lev Davydov, Lisa M. Wolschlag, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Publication number: 20130148464Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: UOP LLCInventors: Lev Davydov, Lisa M. Wolschlag, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Publication number: 20130148463Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: UOP LLCInventors: Lev Davydov, Lisa M. Wolschlag, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Publication number: 20130148465Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: UOP LLCInventors: Lisa M. Wolschlag, Lev Davydov, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Publication number: 20130150233Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: UOP LLCInventors: Lisa M. Wolschlag, Lev Davydov, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
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Patent number: 8173567Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.Type: GrantFiled: December 16, 2008Date of Patent: May 8, 2012Assignee: UOP LLCInventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
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Patent number: 7947230Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.Type: GrantFiled: December 16, 2008Date of Patent: May 24, 2011Assignee: UOP LLCInventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
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Publication number: 20100152020Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.Type: ApplicationFiled: December 16, 2008Publication date: June 17, 2010Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
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Publication number: 20100150788Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.Type: ApplicationFiled: December 16, 2008Publication date: June 17, 2010Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
