Patents by Inventor Christine E. Kliewer

Christine E. Kliewer 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).

  • Patent number: 11890599
    Abstract: The present disclosure provides an active material comprising a mixed metal oxide in a hydrotalcite derived rocksalt structure, a processes to convert paraffins to corresponding olefins and or heavier hydrocarbons using the active material, and a method of preparing the active material.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: February 6, 2024
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Kun Wang, Yi Du, Bradley D. Wooler, Jonathan E. Mitchell, Christine E. Kliewer
  • Publication number: 20230119666
    Abstract: The present disclosure provides an active material comprising a mixed metal oxide in a hydrotalcite derived rocksalt structure, a processes to convert paraffins to corresponding olefins and or heavier hydrocarbons using the active material, and a method of preparing the active material.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventors: Kun Wang, Yi Du, Bradley D. Wooler, Jonathan E. Mitchell, Christine E. Kliewer
  • Publication number: 20230095045
    Abstract: Methods are provided for forming supported catalyst compositions and/or corresponding intermediate catalyst products. The catalyst compositions have improved activity for hydroprocessing of distillate boiling range feeds under hydroprocessing conditions where the hydrogen partial pressure in the hydroprocessing environment is reduced or minimized. The catalyst compositions can correspond to supported CoMo catalysts. The improved activity for hydroprocessing under lower pressure conditions is unexpectedly achieved by using a plurality of treatments with organic compounds during the catalyst formation process. A first treatment with an organic compound can occur prior to, during, and/or after exposing the support to metal precursors for depositing metals on the support. After both the first organic compound and the metal precursors are available in the presence of the support, a first heating and/or carbonizing step can be used to form dispersed metal carbides on the support.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Yi Du, Bradley D. Wooler, Christine E. Kliewer, Stuart Soled
  • Publication number: 20210331146
    Abstract: This application relates to preparation of mono and bimetallic group V, VI, and VII containing carbide catalysts and the methods of using the carbide catalysts in hydroprocessing applications. A method of producing a carbide catalyst comprising: depositing a precursor metal, an acid or an amine, and an organic compound on a support thereby forming an impregnated support, wherein the organic compound has a carbon number of 10 or greater; and carbonizing the impregnated support thereby forming a carbide phase on the support.
    Type: Application
    Filed: February 25, 2021
    Publication date: October 28, 2021
    Inventors: Yi Du, Bradley D. Wooler, Stuart L. Soled, Sabato Miseo, Christine E. Kliewer
  • Patent number: 10974962
    Abstract: A method for producing a metal nitride and/or a metal carbide, a metal nitride and/or metal carbide optionally produced according to the method, and the use of the metal nitride and/or carbide in catalysis optionally catalytic hydroprocessing. Optionally, the method comprises: i) contacting at least one metal oxide comprising at least one first metal M1 with a cyanometallate comprising at least one second metal M2 to form a reaction mixture; and, ii) subjecting the reaction mixture to a temperature of at least 300° C. for a reaction period. Optionally, the metal nitride and/or metal carbide is a metal nitride comprising tungsten nitride.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 13, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Partha Nandi, Quddus A. Nizami, Christine E. Kliewer, Andrew J. Stella, Jihad M. Dakka, Himanshu Gupta
  • Patent number: 10662068
    Abstract: A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 26, 2020
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Allen W. Burton, Christine E. Kliewer, Mobae Afeworki
  • Patent number: 10427147
    Abstract: A process is disclosed for producing small crystal, high surface area crystalline materials having the MFI and/or MEL framework-type, designated as EMM-30, using as a structure directing agent tetrabutylammonium cations and/or tetrabutylphosphonium cations, or 1,5-bis(N-tributylammonium)pentane dications, and/or 1,6-bis(N-tributylammonium)hexane dications. The compositions made according to that process, as well as the various dication compositions themselves, are also disclosed.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 1, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Allen W. Burton, Karl G. Strohmaier, Mobae Afeworki, Christine E. Kliewer
  • Publication number: 20190144774
    Abstract: Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 16, 2019
    Inventors: Michael P. LANCI, Stuart L. SOLED, Javier GUZMAN, Sabato MISEO, Thomas E. GREEN, Joseph E. BAUMGARTNER, Lei ZHANG, Christine E. KLIEWER, Lukasz KOZIOL, Kanmi MAO, Tracie OWENS, Gary P. SCHLEICHER
  • Patent number: 10227535
    Abstract: Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 12, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Michael P. Lanci, Stuart L. Soled, Javier Guzman, Sabato Miseo, Thomas E. Green, Joseph E. Baumgartner, Lei Zhang, Christine E. Kliewer, Lukasz Koziol, Kanmi Mao, Tracie L. Owens, Gary P. Schleicher, Xiaochun Xu
  • Patent number: 10227539
    Abstract: Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 12, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Michael P. Lanci, Stuart L. Soled, Javier Guzman, Sabato Miseo, Thomas E. Green, Joseph E. Baumgartner, Lei Zhang, Christine E. Kliewer, Lukasz Koziol, Kanmi Mao, Tracie L. Owens, Gary P. Schleicher
  • Publication number: 20190062171
    Abstract: A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Inventors: Allen W. Burton, Christine E. Kliewer, Mobae Afeworki
  • Patent number: 10081552
    Abstract: A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: September 25, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Allen W. Burton, Christine E. Kliewer, Mobae Afeworki
  • Patent number: 10017448
    Abstract: A process for ring hydrogenation of a benzenepolycarboxylic acid or derivative thereof, includes contacting a feed stream comprising the acid or derivative thereof with a hydrogen containing gas in the presence of a catalyst under hydrogenation conditions to produce a hydrogenated product, wherein the catalyst contains rhodium and ruthenium.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 10, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stuart L. Soled, Sabato Miseo, Joseph E. Baumgartner, Christine E. Kliewer, Hans K. T. Goris
  • Publication number: 20170291867
    Abstract: A process for ring hydrogenation of a benzenepolycarboxylic acid or derivative thereof, includes contacting a feed stream comprising the acid or derivative thereof with a hydrogen containing gas in the presence of a catalyst under hydrogenation conditions to produce a hydrogenated product, wherein the catalyst contains rhodium and ruthenium.
    Type: Application
    Filed: October 9, 2015
    Publication date: October 12, 2017
    Inventors: Stuart L. Soled, Sabato Miseo, Joseph E. Baumgartner, Christine E. Kliewer, Hans K. T. Goris
  • Publication number: 20170240431
    Abstract: A process is disclosed for producing small crystal, high surface area crystalline materials having the MFI and/or MEL framework-type, designated as EMM-30, using as a structure directing agent tetrabutylammonium cations and/or tetrabutylphosphonium cations, or 1,5-bis(N-tributylammonium)pentane dications, and/or 1,6-bis(N-tributylammonium)hexane dications. The compositions made according to that process, as well as the various dication compositions themselves, are also disclosed.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 24, 2017
    Inventors: Allen W. BURTON, Karl G. STROHMAIER, Mobae AFEWORKI, Christine E. KLIEWER
  • Publication number: 20170051708
    Abstract: Catalyst compositions suitable for use in the exhaust gas recycle stream of an internal combustion engine are provided. Such catalyst compositions typically provide significant amounts of methane in addition to syngas. A reformer incorporating such a catalyst for use in an exhaust gas recycle portion of an internal combustion engine powertrain is described. A powertrain incorporating such a reformer, a method of increasing the octane rating of an exhaust gas recycle stream, and a method of operating an internal combustion engine using methane-assisted combustion are also described.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicants: ExxonMobil Research and Engineering Company, Toyota Central Research And Development Labs, Inc.
    Inventors: Brian M. WEISS, Waltr WEISSMAN, Tilman W. BEUTEL, John F. BRODY, Eugine CHOI, Wenjun LI, Paul D. MADIARA, Christine E. KLIEWER, Karl G. STROHMAIER, Scott J. WEIGEL, Brett LOVELESS, Makota KIOKE, Hiroshi MIAGAWA
  • Publication number: 20160304795
    Abstract: Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Inventors: Michael P. LANCI, Stuart L. SOLED, Javier GUZMAN, Sabato MISEO, Thomas E. GREEN, Joseph E. BAUMGARTNER, Lei ZHANG, Christine E. KLIEWER, Lukasz KOZIOL, Kanmi MAO, Tracie L. OWENS, Gary P. SCHLEICHER
  • Publication number: 20160304792
    Abstract: Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Inventors: Michael P. LANCI, Stuart L. SOLED, Javier GUZMAN, Sabato MISEO, Thomas E. GREEN, Joseph E. BAUMGARTNER, Lei ZHANG, Christine E. KLIEWER, Lukasz KOZIOL, Kanmi MAO, Tracie L. OWENS, Gary P. SCHLEICHER, Xiaochun XU
  • Patent number: 9382171
    Abstract: A process is described for producing a catalyst composition comprising an iridium component dispersed on a support. In the process, silica- o group to form an organic iridium complex on the support. The treated support is then heated in an oxidizing atmosphere at a temperature of about 325° C. to about 475° C. to partially decompose the organic metal complex on the support. The treated support is then heated in a reducing atmosphere at a temperature of about 350° C. to about 500° C. to convert the partially decomposed organic iridium complex into the desired iridium component.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: July 5, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stuart L. Soled, Sabato Miseo, Joseph E. Baumgartner, Christine E. Kliewer, Jane C. Cheng
  • Publication number: 20150298981
    Abstract: A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 22, 2015
    Inventors: Allen W. Burton, Christine E. Kliewer, Mobae Afeworki