Patents by Inventor Xiaobing Feng

Xiaobing Feng 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: 7759535
    Abstract: In a process for converting methane to higher hydrocarbons including aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst under conditions effective to convert said methane to aromatic hydrocarbons and produce a first effluent stream comprising aromatic hydrocarbons and hydrogen, wherein said first effluent stream comprises at least 5 wt % more aromatic hydrocarbons than said feed. At least part of the hydrogen from said first effluent stream is then reacted with an oxygen-containing species, such as carbon dioxide, to produce a second effluent stream having a reduced hydrogen content compared with said first effluent stream.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: July 20, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Xiaobing Feng, Matthew J. Vincent, Elizabeth L. Stavens
  • Patent number: 7655823
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: February 2, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gary D. Mohr, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Larry L. Iaccino, Shifang L. Luo
  • Publication number: 20090012338
    Abstract: This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.
    Type: Application
    Filed: September 10, 2008
    Publication date: January 8, 2009
    Inventors: Jihad Mohammed Dakka, John Scott Buchanan, Robert Andrew Crane, Christine Nicole Elia, Xiaobing Feng, Larry Lee Iaccino, Gary David Mohr, Brenda Anne Raich, Jose' Guadalupe Santiesteban, Lei Zhang
  • Patent number: 7453018
    Abstract: This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: November 18, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad Mohammed Dakka, John Scott Buchanan, Robert Andrew Crane, Christine Nicole Elia, Xiaobing Feng, Larry Lee Iaccino, Gary David Mohr, Brenda Anne Raich, Jose′ Guadalupe Santiesteban, Lei Zhang
  • Patent number: 7396967
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: July 8, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeevan S. Abichandani, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Shifang L. Luo, Gary D. Mohr
  • Patent number: 7393990
    Abstract: A method is provided for converting oxygenates, e.g., methanol, to olefins, e.g., ethylene and propylene, comprising contacting said oxygenates and an aromatics co-feed, e.g., xylenes, with a framework gallium-containing molecular sieve catalyst comprising pores having a size ranging from about 5.0 Angstroms to about 7.0 Angstroms, e.g., ZSM-5, under production conditions effective to produce olefins. A catalyst composition is also provided, comprising a ZSM-5 zeolite-bound ZSM-5 zeolite having a bound zeolite of framework Ga-containing zeolite having a Si/Ga molar ratio ranging from 5 to 500 and a binder of Ga-modified, e.g., Ga-exchanged and/or Ga-impregnated, zeolite having a Si/Ga molar ratio ranging from 5 to ?.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 1, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Teng Xu, Jeffrey L. White, Xiaobing Feng, Gary D. Mohr, Brenda A. Raich
  • Publication number: 20070260098
    Abstract: In a process for converting methane to higher hydrocarbons including aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst under conditions effective to convert said methane to aromatic hydrocarbons and produce a first effluent stream comprising aromatic hydrocarbons and hydrogen, wherein said first effluent stream comprises at least 5 wt % more aromatic hydrocarbons than said feed. At least part of the hydrogen from said first effluent stream is then reacted with an oxygen-containing species, such as carbon dioxide, to produce a second effluent stream having a reduced hydrogen content compared with said first effluent stream.
    Type: Application
    Filed: December 2, 2005
    Publication date: November 8, 2007
    Inventors: Larry Iaccino, Xiaobing Feng, Matthew Vincent, Elizabeth Stavens
  • Publication number: 20070093683
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: December 12, 2006
    Publication date: April 26, 2007
    Inventors: Larry Iaccino, Jeevan Abichandani, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Shifang Luo, Gary Mohr
  • Patent number: 7186873
    Abstract: A process is provided for the production of xylenes from reformate by reactive distillation. The process is carried out by methylating the benzene/toluene present in the reformate in a reactive distillation zone and under reactive distillation conditions to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: March 6, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobing Feng, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Larry L. Iaccino, Gary D. Mohr
  • Patent number: 7179367
    Abstract: A process for reforming wherein ethylbenzene formed during the reforming is converted to xylenes. The process is carried out by reforming a feed containing precursors of ethylbenzene with a reforming catalyst under conditions effective to reform said feed; wherein the reforming catalyst is contained in a reactor which contains a second catalyst effective under said conditions to convert ethylbenzene to xylenes. The resulting product contains reduced amounts of ethylbenzene and increased amounts of xylenes.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: February 20, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobing Feng, Jain-Kai Hung, Gary D. Mohr, Krishna Kulai Rao
  • Patent number: 7176339
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: February 13, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeevan S. Abichandani, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Shifang L. Luo, Gary D. Mohr
  • Patent number: 7119239
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: October 10, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David L. Johnson, Robert G. Tinger, Robert A. Ware, John S. Buchanan, Xiaobing Feng, Shifang Luo, Gary D. Mohr
  • Patent number: 7081556
    Abstract: There is provided a process for aromatics conversion by contacting a feed suitable for aromatics conversion under conversion condition and in the presence of a catalyst comprising ITQ-13. Examples of such conversion processes include isomerization of aromatic (xylenes) feedstock, disproportionation of toluene to benzene and xylenes, alkylation and transalkylation of aromatics, conversion of light paraffins and light olefins to aromatics, conversion of naphtha to aromatics, and conversion of alcohol to aromatics.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: July 25, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John Scott Buchanan, Jihad Mohammed Dakka, Xiaobing Feng, Jose Guadalupe Santiesteban
  • Publication number: 20060149104
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: February 27, 2006
    Publication date: July 6, 2006
    Inventors: Gary Mohr, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Larry Iaccino, Shifang Luo
  • Patent number: 7067052
    Abstract: A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8 isoalkane and/or C8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit comprised of a plurality of operatively connected reactors comprising at least one lead reforming reactor and a tail reforming reactor. The process is carried out by reforming the feed in at least one lead reactor which contains a first reforming catalyst and a catalyst effective for converting ethylbenzene and further reforming the product of the lead reactor in the tail reactor that contains a second reforming catalyst.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: June 27, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jain-Kai Hung, Thomas H. Colle, Xiaobing Feng, Gary D. Mohr, Krishna Kulai Rao
  • Patent number: 7053258
    Abstract: A process is disclosed for selectively producing one or more aromatic compounds selected from benzene, toluene, para-xylene, meta-xylene, ortho-xylene, ethylbenzene and mixtures thereof from a feed containing C6–C20 hydrocarbons and/or C6–C8 alcohols. The feed is initially subjected to a chemical conversion step to increase the concentration of C6–C8 paraffin and/or olefin precursors of said one or more aromatic compounds and then resulting precursor-enriched feed is then contacted with a dehydrocyclization catalyst under conditions of temperature and hydrogen partial pressure sufficient to effect dehydrocyclization of said paraffin and/or olefin precursors. A product rich in the desired aromatic compound(s) can then be recovered from the dehydrocyclization effluent.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: May 30, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobing Feng, Thomas Herman Colle, Gary David Mohr
  • Patent number: 7026264
    Abstract: There is provided a process for converting hydrocarbons using a catalyst comprising macrostructures having a three-dimensional network of particles comprised of porous inorganic material. The particles of the macrostructures occupy less than 75% of the total volume of the macrostructures and are joined together to form a three-dimensional interconnected network comprised of pores having diameters greater than about 20 ?. The macrostructures can be made by forming an admixture containing a porous organic ion exchanger and a synthesis mixture capable of forming the porous inorganic material; converting the synthesis mixture to the porous inorganic material; and removing the porous organic ion exchanger from the inorganic material.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: April 11, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gary David Mohr, Wilfried Jozef Mortier, Xiaobing Feng, Per Johan Sterte, Lubomira Borislavova Tosheva
  • Patent number: 6946583
    Abstract: A process for selectively producing para-xylene from a feedstock enriched in C8 isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization conditions wherein the molecular sieve has a channel size ranging from about 5-8 Angstroms and a 10 to 12 membered ring structure containing at least two elements selected from the group consisting of Si, Al, P, Ge, Ga and Ti.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: September 20, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobing Feng, Thomas H. Colle, Gary D. Mohr
  • Publication number: 20050143613
    Abstract: This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.
    Type: Application
    Filed: November 12, 2004
    Publication date: June 30, 2005
    Inventors: Jihad Dakka, John Buchanan, Robert Crane, Christine Elia, Xiaobing Feng, Larry Iaccino, Gary Mohr, Brenda Raich, Jose Santiesteban, Lei Zhang
  • Publication number: 20050075524
    Abstract: A process is provided for the production of xylenes from reformate by reactive distillation. The process is carried out by methylating the benzene/toluene present in the reformate in a reactive distillation zone and under reactive distillation conditions to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 7, 2005
    Inventors: Xiaobing Feng, John Buchanan, Robert Crane, Jihad Dakka, Larry Iaccino, Gary Mohr