Patents by Inventor Peter I. Ravikovitch
Peter I. Ravikovitch 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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Publication number: 20230249121Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: ApplicationFiled: March 31, 2023Publication date: August 10, 2023Inventors: Peter I. Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti
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Publication number: 20230249120Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: ApplicationFiled: March 31, 2023Publication date: August 10, 2023Inventors: Peter I. Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti
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Patent number: 11642619Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: GrantFiled: July 10, 2020Date of Patent: May 9, 2023Assignees: Georgia Tech Research Corporation, EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Peter I. Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti
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Patent number: 11433346Abstract: Disclosed are processes and systems for the removal of water from a feed stream utilizing swing adsorption processes including an adsorbent bed comprising an adsorbent material which is a cationic zeolite RHO. The cationic zeolite RHO comprises at least one, preferably two, metal cations selected from Group 1 and 2 elements (new Group 1-18 IUPAC numbering). The swing adsorption processes and systems utilizing the cationic zeolite RHO have an adsorption selectivity for water and are useful in selective dehydration of commercial feed streams. The cationic zeolite RHO additionally has an exceptionally high water adsorption stability for use in feed streams with wet acid gas environments operating under cyclic swing adsorption conditions.Type: GrantFiled: October 14, 2020Date of Patent: September 6, 2022Assignee: ExxonMobil Upstream Research CompanyInventors: Yu Wang, Barbara Carstensen, Daniel P. Leta, Peter I. Ravikovitch, Harry W. Deckman, Scott J. Weigel
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Patent number: 11318413Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.Type: GrantFiled: February 17, 2020Date of Patent: May 3, 2022Assignee: ExxonMobil Upstream Research CompanyInventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
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Publication number: 20210113952Abstract: Disclosed are processes and systems for the removal of water from a feed stream utilizing swing adsorption processes including an adsorbent bed comprising an adsorbent material which is a cationic zeolite RHO. The cationic zeolite RHO comprises at least one, preferably two, metal cations selected from Group 1 and 2 elements (new Group 1-18 IUPAC numbering). The swing adsorption processes and systems utilizing the cationic zeolite RHO have an adsorption selectivity for water and are useful in selective dehydration of commercial feed streams. The cationic zeolite RHO additionally has an exceptionally high water adsorption stability for use in feed streams with wet acid gas environments operating under cyclic swing adsorption conditions.Type: ApplicationFiled: October 14, 2020Publication date: April 22, 2021Inventors: Yu Wang, Barbara Carstensen, Daniel P. Leta, Peter I. Ravikovitch, Harry W. Deckman, Scott J. Weigel
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Publication number: 20200338495Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: ApplicationFiled: July 10, 2020Publication date: October 29, 2020Inventors: Peter I. Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti
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Patent number: 10744449Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: GrantFiled: November 15, 2016Date of Patent: August 18, 2020Assignees: Exxonmobil Upstream Research Company, Georgia Tech Research CorporationInventors: Peter I Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti
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Publication number: 20200179870Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.Type: ApplicationFiled: February 17, 2020Publication date: June 11, 2020Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
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Patent number: 10603626Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.Type: GrantFiled: August 4, 2017Date of Patent: March 31, 2020Assignee: ExxonMobil Upstream Research CompanyInventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
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Patent number: 10464817Abstract: EMM-26 is a novel synthetic crystalline material having a single crystalline phase with a unique T-atom connectivity and X-ray diffraction pattern which identify it as a novel material. EMM-26 has a two-dimensional pore system defined by 10-membered rings of tetrahedrally coordinated atoms having pore dimensions of ˜6.3 ?ט3.2 ?. EMM-26 may be prepared with a organic structure directing agent, such as 1,6-bis(N-methylpyrrolidinium) hexane dications and/or 1,6-bis(N-methylpiperidinium) hexane dications. EMM-26 may be used in organic compound conversion and/or sorptive processes.Type: GrantFiled: August 28, 2015Date of Patent: November 5, 2019Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Allen Burton, Karl Strohmaier, Hilda Vroman, Mobae Afeworki, Peter I. Ravikovitch, Charanjit S. Paur, Xiaodong Zou, Peng Guo, Junliang Sun
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Patent number: 10259711Abstract: Systems and methods are provided for separating oxygen from air using a sorption/desorption cycle that includes a reduced or minimized difference between the maximum and minimum pressures involved in the sorption/desorption cycle. The reduced or minimized difference in pressures can be achieved in part by using valves that can allow for commercial scale flow rates while avoiding large pressure drops for flows passing through the valves. A rotary wheel adsorbent is an example of a system that can allow for a sorption/desorption cycle with reduced and/or minimized pressure drops across valves associated with the process. Stationary adsorbent beds can also be used in combination with commercially available valves that have reduced and/or minimized pressure drops.Type: GrantFiled: March 22, 2017Date of Patent: April 16, 2019Assignee: ExxonMobil Research and Engineering CompanyInventors: Ramesh Gupta, Robert A. Johnson, Thomas N. Anderson, Harry W. Deckman, Peter I. Ravikovitch
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Patent number: 10093597Abstract: In a process for separating one or more 3,3?-, 3,4?- and 4,4?-dimethyl biphenyl isomers, a feed comprising the isomers is contacted with an adsorbent containing a zeolite having a largest diffuse along dimension of at least 4 Angstroms. The adsorbents provide selective adsorption of 4,4?-dimethyl biphenyl.Type: GrantFiled: February 1, 2018Date of Patent: October 9, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Changyub Paek, Michael P. Lanci, Randall D. Partridge, Allen W. Burton, Peter I. Ravikovitch, Sumathy Raman
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Patent number: 10035096Abstract: The present application is directed to a method and system for preparing gaseous utility streams from gaseous process streams, particularly, removing oil contamination from such streams prior to use in a dry gas seal. The methods and systems may include at least one kinetic swing adsorption process including pressure swing adsorption, temperature swing adsorption, calcination, and inert purge processes to treat gaseous streams for use in dry gas seals of rotating equipment such as compressors, turbines and pumps and other utilities. The adsorbent materials used include a high surface area solid structured microporous and mesoporous materials.Type: GrantFiled: July 23, 2015Date of Patent: July 31, 2018Assignee: ExxonMobil Upstream Research CompanyInventors: Harry W. Deckman, Preeti Kamakoti, Peter I. Ravikovitch, Bruce T. Kelley, P. Scott Northrop, Peter C. Rasmussen, Paul L. Tanaka, Martin N. Webster, Wieslaw J. Roth, Edward W. Corcoran, Jr.
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Publication number: 20180056235Abstract: The present disclosure describes the use of a specific adsorbent material in a rapid cycle swing adsorption to perform dehydration of a gaseous feed stream. The adsorbent material includes a zeolite 3A that is utilized in the dehydration process to enhance recovery of hydrocarbons.Type: ApplicationFiled: August 4, 2017Publication date: March 1, 2018Inventors: Yu Wang, Harry W. Deckman, Ashley M. Wittrig, Karl G. Strohmaier, Daniel P. Leta, Peter I. Ravikovitch
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Publication number: 20170305744Abstract: Systems and methods are provided for separating oxygen from air using a sorption/desorption cycle that includes a reduced or minimized difference between the maximum and minimum pressures involved in the sorption/desorption cycle. The reduced or minimized difference in pressures can be achieved in part by using valves that can allow for commercial scale flow rates while avoiding large pressure drops for flows passing through the valves. A rotary wheel adsorbent is an example of a system that can allow for a sorption/desorption cycle with reduced and/or minimized pressure drops across valves associated with the process. Stationary adsorbent beds can also be used in combination with commercially available valves that have reduced and/or minimized pressure drops.Type: ApplicationFiled: March 22, 2017Publication date: October 26, 2017Inventors: Ramesh Gupta, Robert A. Johnson, Thomas N. Anderson, Harry W. Deckman, Peter I. Ravikovitch
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Patent number: 9738539Abstract: This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1?g)SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.Type: GrantFiled: June 19, 2015Date of Patent: August 22, 2017Assignee: ExxonMobil Research and Engineering CompanyInventors: Edward W. Corcoran, Jr., Pavel Kortunov, Charanjit S. Paur, Peter I. Ravikovitch, Yu Wang, Avelino Corma Canos, Fernando Rey Garcia, Susana Valencia Valencia, Angel Cantín Sanz, Miguel Palomino Roca
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Patent number: 9695056Abstract: This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1?g)SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.Type: GrantFiled: June 19, 2015Date of Patent: July 4, 2017Assignee: ExxonMobil Research and Engineering CompanyInventors: Edward W. Corcoran, Jr., Pavel Kortunov, Charanjit S. Paur, Peter I. Ravikovitch, Yu Wang, Avelino Corma Canos, Fernando Rey Garcia, Susana Valencia Valencia, Angel Cantin Sanz, Miguel Palomino Roca
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Patent number: 9688542Abstract: This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1?g)SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.Type: GrantFiled: June 19, 2015Date of Patent: June 27, 2017Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Edward W. Corcoran, Jr., Pavel Kortunov, Charanjit S. Paur, Peter I. Ravikovitch, Yu Wang, Avelino Corma Canos, Fernando Rey Garcia, Susana Valencia Valencia, Angel Cantin Sanz, Miguel Palomino Roca
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Publication number: 20170136405Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.Type: ApplicationFiled: November 15, 2016Publication date: May 18, 2017Inventors: Peter I. Ravikovitch, David Sholl, Charanjit Paur, Karl G. Strohmaier, Hanjun Fang, Ambarish R. Kulkarni, Rohan V. Awati, Preeti Kamakoti