Patents by Inventor Michael A. Steckel

Michael A. Steckel 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: 7799956
    Abstract: A process for producing phenol and methyl ethyl ketone comprises contacting benzene with a C4 alkylating agent under alkylation conditions with catalyst comprising zeolite beta or a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom to produce an alkylation effluent comprising sec-butylbenzene. The sec-butylbenzene is then oxidized to produce a hydroperoxide and the hydroperoxide is decomposed to produce phenol and methyl ethyl ketone.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: September 21, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jane Chi-ya Cheng, John S. Buchanan, Doron Levin, Michael A. Steckel, Jihad M. Dakka, James P. Stokes, John L. Robbins, Jon E. Stanat, Charles M. Smith, José G. Santiesteban
  • Patent number: 6730625
    Abstract: There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diffraction pattern including the following d-spacing maxima 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: May 4, 2004
    Assignee: ExxonMobil Oil Corporation
    Inventors: Clarence D. Chang, Jane C. Cheng, Terry E. Helton, Michael A. Steckel, Scott A. Stevenson
  • Patent number: 6489529
    Abstract: There is described a process for the transalkylation of a polycycloalkyl aromatic compound, particularly the transalkylation of dicyclohexylbenzene to produce monocyclohexylbenzene. The process comprises contacting the polycycloalkyl aromatic compound with benzene in the presence of a catalyst selected from the group consisting of an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIBA metal oxide, TEA-mordenite, zeolite beta and a porous crystalline material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. Preferably the catalyst is a WOx/ZrO2 material.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: December 3, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Jane C. Cheng, Jose G. Santiesteban, Michael A. Steckel, James C. Vartuli
  • Patent number: 6049018
    Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-68, a method and novel polycyclic organic cation for its preparation and its use in catalytic conversion of organic compounds. The new crystalline material exhibits a distinctive X-ray diffraction pattern and has a unique crystal structure which contains at least one channel system, in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms, and at least two further, independent channel systems, in each of which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms, wherein the number of unique 10-membered ring channels is twice the number of 12-membered ring channels.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: April 11, 2000
    Assignee: Mobil Corporation
    Inventors: David C. Calabro, Jane C. Cheng, Robert A. Crane, Jr., Charles T. Kresge, Sandeep S. Dhingra, Michael A. Steckel, David L. Stern, Simon C. Weston
  • Patent number: 6037513
    Abstract: There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diffraction pattern including the following d-spacing maxima 12.4.+-.0.25, 6.9.+-.0.15, 3.57.+-.0.07 and 3.42.+-.0.07.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: March 14, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Jane C. Cheng, Terry E. Helton, Michael A. Steckel, Scott A. Stevenson