Patents by Inventor Sebastien P. B. Kremer

Sebastien P. B. Kremer 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).

  • Methods for determining efficacy of metal oxide co-catalysts for oxygenates-to-olefins reactions
    Patent number: 8415519
    Abstract: The invention involves a process for converting an oxygenate-containing feed into an olefin-containing product comprising: (a) providing a co-catalyst oxide of a metal from Groups 2-4 of the Periodic Table of Elements, Lanthanides, Actinides, and combinations thereof, (b) contacting the metal oxide with nitromethane under conditions sufficient for the nitromethane to adsorb onto the metal oxide; (c) analyzing the nitromethane-adsorbed metal oxide using NMR to determine a basic site density of the metal oxide; (d) providing a catalyst system comprising a primary catalyst comprising aluminosilicates, aluminophosphates, silicoaluminophosphates, and metal-containing derivatives and combinations thereof, and the co-catalyst metal oxide whose basic site density is ?0.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 9, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen N. Vaughn, Sebastien P. B. Kremer, Teng Xu
  • Molecular sieves having micro and mesoporosity, their synthesis and their use in the organic conversion reactions
    Patent number: 8383079
    Abstract: A crystalline molecular sieve comprises at least [AlO4] and [PO4] tetrahedral units and comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from about 0.3 to less than 2 nanometers and further comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 50 nanometers. The first framework structure is preferably of the CHA framework type.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: February 26, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sebastien P. B. Kremer, Machteld Maria Mertens, Luc R.M. Martens
  • Methods For Determining Efficacy Of Metal Oxide Co-Catalysts For Oxygenates-To-Olefins Reactions
    Publication number: 20100152514
    Abstract: The invention involves a process for converting an oxygenate-containing feed into an olefin-containing product comprising: (a) providing a co-catalyst oxide of a metal from Groups 2-4 of the Periodic Table of Elements, Lanthanides, Actinides, and combinations thereof, (b) contacting the metal oxide with nitromethane under conditions sufficient for the nitromethane to adsorb onto the metal oxide; (c) analyzing the nitromethane-adsorbed metal oxide using NMR to determine a basic site density of the metal oxide; (d) providing a catalyst system comprising a primary catalyst comprising aluminosilicates, aluminophosphates, silicoaluminophosphates, and metal-containing derivatives and combinations thereof, and the co-catalyst metal oxide whose basic site density is ?0.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Stephen N. Vaughn, Sebastien P.B. Kremer, Teng Xu
  • Porous composite materials having micro and meso/macroporosity
    Patent number: 7678955
    Abstract: A composite material comprises: (a) a porous crystalline inorganic oxide material comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from 0.3 to less than 2 nanometers and comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 200 nanometers and (b) a co-catalyst within the second set of pores of the porous crystalline inorganic oxide material (a).
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: March 16, 2010
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Luc R. M. Martens, Sebastien P. B. Kremer
  • Molecular sieves having micro and mesoporosity, their synthesis and their use in the organic conversion reactions
    Publication number: 20070244341
    Abstract: A crystalline molecular sieve comprises at least [AlO4] and [PO4] tetrahedral units and comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from about 0.3 to less than 2 nanometers and further comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 50 nanometers. The first framework structure is preferably of the CHA framework type.
    Type: Application
    Filed: March 2, 2007
    Publication date: October 18, 2007
    Inventors: Sebastien P.B. Kremer, Machteld Maria Mertens, Luc R.M. Martens
  • Porous composite materials having micro and meso/macroporosity
    Publication number: 20070087934
    Abstract: A composite material comprises: (a) a porous crystalline inorganic oxide material comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from 0.3 to less than 2 nanometers and comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 200 nanometers and (b) a co-catalyst within the second set of pores of the porous crystalline inorganic oxide material (a).
    Type: Application
    Filed: October 13, 2005
    Publication date: April 19, 2007
    Inventors: Luc R.M. Martens, Sebastien P.B. Kremer