Patents by Inventor Quanchang Li
Quanchang Li 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: 20160168172Abstract: Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z1OZ2SiCH2]3 (I), wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer and each Z2 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C6 alkyl group or an oxygen atom bonded to a silicon atom of another monomer and at least one other monomer are provided herein. Processes of using the organosilica materials, e.g., gas separation, etc., are also provided herein.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Quanchang Li, David Charles Calabro, Paul Podsiadlo, Jean Willem Lodewijk Beeckman, Preeti Kamakoti, Matu J. Shah, Doug F. Colmyer
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Publication number: 20160168173Abstract: Provided herein are organosilica materials, which is a polymer of at least one monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein each Z1 and Z2 independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer. Processes of using the organosilica materials, e.g., for gas separation, are also provided herein.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Quanchang Li, David Charles Calabro, Paul Podsiadlo, Jean Willem Lodewijk Beeckman, Kanmi Mao
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Publication number: 20160168174Abstract: Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein Z1 and Z2 each independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer and at least one other monomer is provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal etc., are also provided herein.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Quanchang LI, Preeti KAMAKOTI, David Charles CALABRO, Mary Kathryn LEE, Stephen M. CUNDY, Kanmi MAO, Matu J. SHAH, Dennis George PEIFFER, Daniel P. LETA
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Publication number: 20160168484Abstract: Methods for separating an aromatic compound from a lube base stock are provided herein. The method includes contacting a lube base stock containing an aromatic compound with an organosilica material as provided herein.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Scott J. Weigel, Lei Zhang, Quanchang Li, Darryl Donald Lacy, Paul Podsiadlo, David Charles Calabro, Bal Kaul, James William Gleeson
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Publication number: 20160167016Abstract: Methods for coating a substrate with a coating including an adsorbent material and a binder comprising an organosilica material which is a polymer comprising independent units of Formula [Z3Z4SiCH2]3 (I), wherein each Z3 represents a hydroxyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another unit or an active site on the substrate and each Z4 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C4 alkyl group, an oxygen atom bonded to a silicon atom of another unit or an active site on the substrate are provided. Methods of gas separation are also provided.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Quanchang LI, Randall D. PARTRIDGE
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Publication number: 20160168485Abstract: Methods for fabricating a membrane with an organosilica material which is a polymer comprising independent units of Formula [Z3Z4SiCH2]3 (I), wherein each Z3 represents a hydroxyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another unit or an active site on the support and each Z4 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C4 alkyl group, an oxygen atom bonded to a silicon atom of another unit or an active site on the support are provided. Methods of removing a contaminant from a hydrocarbon stream are also provided.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Quanchang LI, Dhaval Ajit BHANDARI, Benjamin A. McCOOL
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Publication number: 20160168333Abstract: Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each R1 is a Z1OZ2Z3SiZ4 group, wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z2 and Z3 independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Paul Podsiadlo, Quanchang Li, David Charles Calabro, Lei Zhang, Kiara M. Benitez, Himanshu Gupta, Xiaochun Xu, Scott J. Weigel, Darryl Donald Lacy, Bal Kaul, James William Gleeson, Wenyih Frank Lai
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Patent number: 9333484Abstract: Methods are provided for synthesizing novel types of self-assembled siloxanes, such as polysiloxanes, with a sufficiently high density of amine functional groups to be useful for CO2 capture and release processes. Additionally, it has been unexpectedly found that some self-assembled polysiloxanes can be used for high temperature adsorption of CO2.Type: GrantFiled: November 25, 2013Date of Patent: May 10, 2016Assignee: ExxonMobil Research and Engineering CompanyInventors: David C. Calabro, Quanchang Li, Dennis G. Peiffer, Mobae Afeworki, Stephen M. Cundy, Charanjit S. Paur, Peter I. Ravikovitch
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Publication number: 20160038872Abstract: A method is described for separating CO2 and/or H2S from a mixed gas stream by contacting the gas stream with a non-aqueous, liquid absorbent medium of a primary and/or secondary aliphatic amine, preferably in a non-aqueous, polar, aprotic solvent under conditions sufficient for sorption of at least some of the CO2. The solution containing the absorbed CO2 can then be treated to desorb the acid gas. The method is usually operated as a continuous cyclic sorption-desorption process, with the sorption being carried out in a sorption zone where a circulating stream of the liquid absorbent contacts the gas stream to form a CO2-rich sorbed solution, which is then cycled to a regeneration zone for desorption of the CO2 (advantageously at <100° C.). Upon CO2 release, the regenerated lean solution can be recycled to the sorption tower. CO2:(primary+secondary amine) adsorption molar ratios >0.5:1 (approaching 1:1) may be achieved.Type: ApplicationFiled: October 16, 2015Publication date: February 11, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: David Charles CALABRO, Lisa Saunders Baugh, Pavel Kortunov, Benjamin A. McCool, Michael Siskin, Dennis George Peiffer, Quanchang Li
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Patent number: 9186617Abstract: A method is described for separating CO2 and/or H2S from a mixed gas stream by contacting the gas stream with a non-aqueous, liquid absorbent medium of a primary and/or secondary aliphatic amine, preferably in a non-aqueous, polar, aprotic solvent under conditions sufficient for sorption of at least some of the CO2. The solution containing the absorbed CO2 can then be treated to desorb the acid gas. The method is usually operated as a continuous cyclic sorption-desorption process, with the sorption being carried out in a sorption zone where a circulating stream of the liquid absorbent contacts the gas stream to form a CO2-rich sorbed solution, which is then cycled to a regeneration zone for desorption of the CO2 (advantageously at <100° C.). Upon CO2 release, the regenerated lean solution can be recycled to the sorption tower. CO2:(primary+secondary amine) adsorption molar ratios >0.5:1 (approaching 1:1) may be achieved.Type: GrantFiled: September 9, 2011Date of Patent: November 17, 2015Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: David C. Calabro, Lisa S. Baugh, Pavel Kortunov, Benjamin A. McCool, Michael Siskin, Dennis G. Peiffer, Quanchang Li
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ORGANO-AMINE ACID GAS ADSORPTION-DESORPTION POLYMERS, PROCESSES FOR PREPARING SAME, AND USES THEREOF
Publication number: 20150307661Abstract: An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having a weight average molecular weight of from about 500 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material, and linear organo-amine polymeric materials having a weight average molecular weight of from about 160 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material. This disclosure also relates in part to processes for preparing the crosslinked organo-amine materials and linear organo-amine materials.Type: ApplicationFiled: July 6, 2015Publication date: October 29, 2015Applicant: ExxonMobil Research and Engineering CompanyInventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki, Stephen M. Cundy -
Patent number: 9169370Abstract: This disclosure involves an adsorption-desorption material, e.g., crosslinked polyvinyl-amine material having an Mw from about 500 to about 1×106, total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO2 adsorption capacity of at least about 0.2 millimoles per gram of crosslinked material, and/or linear polyvinyl-amine material having an Mw from about 160 to about 1×106, total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO2 adsorption capacity of at least about 0.2 millimoles per gram of linear material. This disclosure also involves processes for preparing the crosslinked polyvinyl-amine materials and linear polyvinyl-amine materials, as well as selective removal of CO2 and/or other acid gases from a gaseous stream using the polyvinyl-amine materials.Type: GrantFiled: December 21, 2011Date of Patent: October 27, 2015Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki
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Patent number: 9169369Abstract: An adsorption-desorption material, in particular, crosslinked vinylepoxide-amine polymeric materials having an Mw from about 500 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material, and linear vinylepoxide-amine polymeric materials having an Mw from about 140 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material. This disclosure also relates to processes for preparing the crosslinked and linear vinylepoxide-amine materials, as well as to selective removal of CO2 and/or other acid gases from a gaseous stream using the vinylepoxide materials.Type: GrantFiled: December 21, 2011Date of Patent: October 27, 2015Assignee: ExxonMobil Research and Engineered CompanyInventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki
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Organo-amine acid gas adsorption-desorption polymers, processes for preparing same, and uses thereof
Patent number: 9115260Abstract: An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having an Mw from about 500 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material, and linear organo-amine polymeric materials having an Mw from about 160 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles adsorbed CO2 per gram of adsorption-desorption material. This disclosure also relates to processes for preparing the crosslinked and linear organo-amine materials, as well as to selective removal of CO2 and/or other acid gases from a gaseous stream using the adsorption-desorption materials.Type: GrantFiled: December 21, 2011Date of Patent: August 25, 2015Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki, Stephen M. Cundy -
Publication number: 20140186246Abstract: Methods are provided for synthesizing novel types of self-assembled siloxanes, such as polysiloxanes, with a sufficiently high density of amine functional groups to be useful for CO2 capture and release processes. Additionally, it has been unexpectedly found that some self-assembled polysiloxanes can be used for high temperature adsorption of CO2.Type: ApplicationFiled: November 25, 2013Publication date: July 3, 2014Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: David C. Calabro, Quanchang Li, Dennis G. Peiffer, Mobae Afeworki, Stephen M. Cundy, Charanjit S. Paur, Peter I. Ravikovitch
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Patent number: 8715397Abstract: A CO2 amine scrubbing process uses an absorbent mixture combination of an amine CO2 sorbent in combination with a non-nucleophilic, relatively stronger, typically nitrogenous, base. The weaker base(s) are nucleophilic and have the ability to react directly with the CO2 in the gas stream while the relatively stronger bases act as non-nucleophilic promoters for the reaction between the CO2 and the weaker base. The sorption and desorption temperatures can be varied by selection of the amine/base combination, permitting effective sorption temperatures of 70 to 90° C., favorable to scrubbing flue gas.Type: GrantFiled: September 9, 2011Date of Patent: May 6, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Pavel Kortunov, Lisa S. Baugh, David C. Calabro, Michael Siskin, Preeti Kamakoti, Quanchang Li
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Patent number: 8598071Abstract: Improved CO2 sorbents comprised of a mesoporous silica functionalized with a polyamine are obtained by the in-situ polymerization of azetidine. Also included herein are processes utilizing the improved CO2 sorbents wherein CO2 is chemisorbed onto the polyamine portion of the sorbent and the process is thermally reversible.Type: GrantFiled: May 17, 2013Date of Patent: December 3, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Lisa S. Baugh, David C. Calabro, Quanchang Li, Enock Berluche
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Patent number: 8598070Abstract: Improved CO2 sorbents comprised of a mesoporous silica functionalized with a polyamine are obtained by the in-situ polymerization of azetidine. Also included herein are processes utilizing the improved CO2 sorbents wherein CO2 is chemisorbed onto the polyamine portion of the sorbent and the process is thermally reversible.Type: GrantFiled: May 17, 2013Date of Patent: December 3, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Lisa S. Baugh, David C. Calabro, Quanchang Li, Enock Berluche
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Publication number: 20130313473Abstract: Improved CO2 sorbents comprised of a mesoporous silica functionalized with a polyamine are obtained by the in-situ polymerization of azetidine. Also included herein are processes utilizing the improved CO2 sorbents wherein CO2 is chemisorbed onto the polyamine portion of the sorbent and the process is thermally reversible.Type: ApplicationFiled: May 17, 2013Publication date: November 28, 2013Applicant: ExxonMobil Research amd Engineering CompanyInventors: Lisa S. Baugh, David C. Calabro, Quanchang Li, Enock Berluche
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Publication number: 20130317180Abstract: Improved CO2 sorbents comprised of a mesoporous silica functionalized with a polyamine are obtained by the in-situ polymerization of azetidine. Also included herein are processes utilizing the improved CO2 sorbents wherein CO2 is chemisorbed onto the polyamine portion of the sorbent and the process is thermally reversible.Type: ApplicationFiled: May 17, 2013Publication date: November 28, 2013Applicant: ExxonMobil Research and Engineering CompanyInventors: Lisa S. Baugh, David C. Calabro, Quanchang Li, Enock Berluche