Patents by Inventor Christine N. Elia

Christine N. Elia 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).

  • Publication number: 20200031737
    Abstract: Disclosed are processes for conversion of a feedstock comprising C8+ aromatic hydrocarbons to lighter aromatic products in which the feedstock and optionally hydrogen are contacted in the presence of the catalyst composition under conversion conditions effective to dealkylate and transalkylate said C8+ aromatic hydrocarbons to produce said lighter aromatic products comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite, a first metal, and a second metal, and is treated with a source of sulfur and/or a source of steam.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Christine N. Elias, Wenyih F. Lai, Hari Nair, Joshua I. Cutler, Chuansheng Bai, Nicholas S. Rollman
  • Publication number: 20200031740
    Abstract: Disclosed are processes for conversion of a feedstock comprising C8+ aromatic hydrocarbons to lighter aromatic products in which the feedstock and optionally hydrogen are contacted in the presence of a first and a second catalyst composition under conversion conditions effective to produce said lighter aromatic products comprising benzene, toluene and xylene. In the process, the C8+ aromatic hydrocarbons are dealkylated to form C6-C7 aromatic hydrocarbon and the C2+ olefins formed are saturated. The remaining C8+ aromatic hydrocarbons are transalkylated with the C6-C7 aromatic hydrocarbon. The first and second catalyst compositions each comprise a zeolite, a first metal, and optionally a second metal, and are treated with a source of sulfur and/or a source of steam.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Christine N. Elias, Wenyih F. Lai, Hari Nair, Joshua I. Cutler, Chuansheng Bai, Nicholas S. Rollman
  • Patent number: 10118165
    Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a first zeolite having a constraint index of 3 to 12, a second zeolite comprising a mordenite zeolite synthesized from TEA or MTEA, at least one first metal of Group 10 of the IUPAC Periodic Table, and at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 6, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih F. Lai, Christine N. Elia, Jane C. Cheng, Shifang L. Luo, Hari Nair, Joshua I. Cutler, Doron Levin
  • Patent number: 10058853
    Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a mordenite zeolite synthesized from TEA or MTEA, optionally at least one first metal of Group 10 of the IUPAC Periodic Table, and optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: August 28, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih F. Lai, Christine N. Elia, Jane C. Cheng, Shifang L. Luo, Hari Nair, Joshua I. Cutler, Doron Levin, Chuansheng Bai
  • Patent number: 10058854
    Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 28, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Shifang L. Luo, Hari Nair, Wenyih F. Lai, Robert G. Tinger
  • Patent number: 10053403
    Abstract: Disclosed are catalyst compositions and their use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite which comprises a MOR framework structure and a MFI and/or MEL framework structure, (b) at least one first metal of Group 10 of the IUPAC Periodic Table, and (c) optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table. In one or more embodiments, the MOR framework structure comprises mordenite, preferably a mordenite zeolite having small particle size. The MFI framework structure preferably comprises ZSM-5, and the MEL framework structure preferably comprises ZSM-11.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 21, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih Frank Lai, Christine N. Elia, Nicholas S. Rollman, Joshua I. Cutler
  • Publication number: 20180134637
    Abstract: Disclosed are catalyst compositions and their use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite which comprises a MOR framework structure and a MFI and/or MEL framework structure, (b) at least one first metal of Group 10 of the IUPAC Periodic Table, and (c) optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table. In one or more embodiments, the MOR framework structure comprises mordenite, preferably a mordenite zeolite having small particle size. The MFI framework structure preferably comprises ZSM-5, and the MEL framework structure preferably comprises ZSM-11.
    Type: Application
    Filed: October 20, 2017
    Publication date: May 17, 2018
    Inventors: Wenyih Frank Lai, Christine N. Elia, Nicholas S. Rollman, Joshua I. Cutler
  • Publication number: 20180029025
    Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene.
    Type: Application
    Filed: September 25, 2017
    Publication date: February 1, 2018
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Shifang L. Luo, Hari Nair, Wenyih F. Lai, Robert G. Tinger
  • Patent number: 9856186
    Abstract: A process is described for converting at least one isomer of a dialkyl-substituted biphenyl compound, such as at least one 2,X? dialkylbiphenyl isomer (where X? is 2?, 3? and/or 4?), into at least one different isomer, 3,3?, 3,4? and/or 4,4? dialkylbiphenyl isomer. The process comprises contacting a feed comprising the dialkyl-substituted biphenyl compound isomer with an acid catalyst under isomerization conditions.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: January 2, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael Salciccioli, Jihad M. Dakka, Emiel de Smit, Neeraj Sangar, Scott J. Weigel, Sumathy Raman, Terry E. Helton, Lorenzo C. DeCaul, Christine N. Elia, Chuansheng Bai, Ranjita Ghose
  • Publication number: 20170368540
    Abstract: In a process for the catalytic alkylation of an olefin with an isoparaffi, an olefin-containing feed is contacted with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of at least one of the MWW and MOR framework types, wherein the solid acid catalyst is substantially free of amorphous alumina.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 28, 2017
    Inventors: Matthew S. METTLER, Jihad M. DAKKA, Ivy D. JOHNSON, Stefani PRIGOZHINA, Charles M. SMITH, William W. LONERGAN, Brett LOVELESS, Christine N. ELIA, Wenyih F. LAI
  • Patent number: 9802181
    Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 31, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Shifang L. Luo, Hari Nair, Wenyih F. Lai, Robert G. Tinger
  • Publication number: 20160221897
    Abstract: A process for producing xylene comprises contacting a first feed comprising C9+ aromatic hydrocarbons and hydrogen with a first catalyst composition comprising a first molecular sieve having a Constraint Index of 3 to 12 and at least one hydrogenation component. The first catalyst composition dealkylates at least part of the C9+ aromatic hydrocarbons containing C2+ alkyl groups and to saturate the resulting C2+ olefins to produce a second feed. The second feed is then contacted with a second catalyst composition under conditions effective to transalkylate at least part of the C9+ aromatic hydrocarbons in the second feed to produce a product comprising xylene. The second catalyst composition comprises a second molecular sieve having a Constraint Index less than 3 and a third molecular sieve having a Constraint Index of 3 to 12.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 4, 2016
    Inventors: Christine N. Elia, Wenyih F. Lai, Shifang L. Luo, Jeevan S. Abichandani, Robert G. Tinger, Gary D. Mohr, Xiaobo Zheng
  • Publication number: 20160221895
    Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a mordenite zeolite synthesized from TEA or MTEA, optionally at least one first metal of Group 10 of the IUPAC Periodic Table, and optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 4, 2016
    Inventors: Wenyih F. Lai, Christine N. Elia, Jane C. Cheng, Shifang L. Luo, Hari Nair, Joshua I. Cutler, Doron Levin, Chuansheng Bai
  • Publication number: 20160221896
    Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 4, 2016
    Inventors: Christine N. Elia, Shifang L. Luo, Hari Nair, Wenyih F. Lai, Robert G. Tinger
  • Publication number: 20160220987
    Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a first zeolite having a constraint index of 3 to 12, a second zeolite comprising a mordenite zeolite synthesized from TEA or MTEA, at least one first metal of Group 10 of the IUPAC Periodic Table, and at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.
    Type: Application
    Filed: September 30, 2015
    Publication date: August 4, 2016
    Inventors: Wenyih F. Lai, Christine N. Elia, Jane C. Cheng, Shifang L. Luo, Hari Nair, Joshua I. Cutler, Doron Levin
  • Publication number: 20150175897
    Abstract: Methods are provided for performing a conversion reaction using a catalyst steamed under mild steaming conditions. Steaming a conversion catalyst under mild steaming conditions can provide an increased conversion activity and/or an increased run length for the catalyst during conversion of an oxygenate feed to aromatic hydrocarbons, such as benzene or xylene. Suitable conversion catalysts can include alumina bound catalysts including a medium pore molecular sieve.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 25, 2015
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Brett Loveless, Christine N. Elia, Stephen J. McCarthy
  • Patent number: 8703635
    Abstract: This disclosure relates to a catalyst composition comprising (a) MCM-22 family material; and (b) a binder comprising at least 1 wt. % of a titanium compound based on the weight of said catalyst composition, wherein said titanium compound was anatase and rutile phases.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: April 22, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Publication number: 20130267406
    Abstract: This disclosure relates to a catalyst composition comprising (a) MCM-22 family material; and (b) a binder comprising at least 1 wt.% of a titanium compound based on the weight of said catalyst composition, wherein said titanium compound was anatase and rutile phases.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 10, 2013
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Patent number: 8524967
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang
  • Patent number: 8500991
    Abstract: A process is described of producing an MTT framework type molecular sieve by crystallizing a mixture capable of forming said molecular sieve, wherein the mixture comprises sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), water and a directing agent (R) of the formula (CH3)3N+CH2CH2CH2N+(CH3)2CH2CH2CH2N+(CH3)3, and has a composition, in terms of mole ratios, within the following ranges. YO2/X2O3 less than 45 H2O/YO2 5 to 100 OH?/YO2 0.05 to 0.5 M/YO2 0.05 to 0.5 and R/YO2 >0 to <0.5.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 6, 2013
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Wenyih F. Lai, Christine N. Elia