Patents by Inventor Ram N. Bhatia

Ram N. Bhatia 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: 5120893
    Abstract: The present invention provides a highly selective catalytic cracking process for the conversion of feedstocks containing a predominant content of C.sub.10 and higher mixed olefins into C.sub.9 and lower olefin products at efficiencies of greater than 20%. said products further characterized in that the content C.sub.6 to C.sub.9 olefins is maximized while the content of C.sub.2 to C.sub.4 olefins is minimized. The process involves contacting an olefin feedstock mixture containing at least about 50 weight %, more preferably at least about 70 weight %, of C.sub.10 and higher olefins under cracking conditions with a catalyst selected from the group consisting of amorphous precipitated silica, selected crystalline silicates and aluminosilicates, namely beta, mordenite and ZSM-5 types, as well as ion exchanged or acid variants thereof. Cracking conditions include a temperature within the range of from about 250.degree. up to about 450.degree. C.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: June 9, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Joseph W. Gabriel, Alexandr P. Glivicky, Nur R. Gurak, Norman C. Murtaugh, Wilfried J. Mortier, David E. Vaughan, Ram N. Bhatia
  • Patent number: 5072057
    Abstract: A catalytic process for the hydroformylation of olefinic, sulfur containing thermally cracked petroleum streams to produce aldehydes and/or alcohols is disclosed. The catalysts are homogeneous transition metal carbonyl complexes. Especially preferred catalysts for low and medium pressure hydroformylation are cobalt and rhodium carbonyl hydride complexes in which some of the carbonyl ligands have been replaced by trivalent phosphorus ligands. In a preferred high pressure hydroformylation, the sulfur-containing naphtha and gas oil distillate feeds are produced from vacuum residua by high temperature thermal cracking. Such feeds contain more than 20% olefins with 1-n-olefins as the single major types. These olefin components are hydroformylated in the presence of a cobalt carbonyl complex to produce a novel type of semilinear aldehyde and/or alcohol product containing an average of less than one alkyl branch per molecule.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 10, 1991
    Assignee: Exxon Research & Engineering Co.
    Inventors: Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Alexandr P. Glivicky, Barry G. Brueggeman, John R. Hooton, Charles M. Smith
  • Patent number: 5030774
    Abstract: A catalytic process for the hydroformylation of olefinic, sulfur containing thermally cracked petroleum streams to produce aldehydes and/or alcohols is disclosed. The catalysts are homogeneous transition metal carbonyl complexes. Especially preferred catalysts for low and medium pressure hydroformylation are cobalt and rhodium carbonyl hydride complexes in which some of the carbonyl ligands have been replaced by trivalent phosphorus ligands. In a preferred high pressure hydroformylation, the sulfur-containing naphtha and gas oil distillate feeds are proudced from vacuum residue by high temperature thermal cracking. Such feeds contain more than 20% olefins with 1-n-olefins as the single major types. These olefin components are hydroformylated in the presence of a cobalt cabonyl complex to produce a novel type of semilinear aldehyde and/or alcohol product containing an average of less than one alkyl branch per molecule.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: July 9, 1991
    Assignee: Exxon Research and Engineering Co.
    Inventors: Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Alexandr P. Glivicky, Barry G. Brueggeman, John R. Hooton, Charles M. Smith, Chang S. Hsu
  • Patent number: 4973764
    Abstract: There are disclosed novel compositions of matter comprising monoalkylphenols prepared by selectively alkylating the olefin component of a thermally cracked sulfur-containing petroleum distillate derived from residua. The monoalkylphenols have certain ortho to para ratios and may be used to prepare a number of useful derivatives such as ethoxylated and propoxylated surfactants, sulfoalkylated products, sulfurized antioxidants, overbased phenates, dithiophosphate derivatives, formaldehyde reaction products and similar methylene bridged products which are useful demulsifiers.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: November 27, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Darrell W. Brownawell, Thomas L. Ashcraft
  • Patent number: 4922028
    Abstract: A catalytic process for the hydroformylation of olefinic, sulfur containing thermally cracked petroleum streams to produce aldehydes and/or alcohols is disclosed. The catalysts are homogeneous transition metal carbonyl complexes. Especially preferred catalysts for low and medium pressure hydroformylation are cobalt and rhodium carbonyl hydride complexes in which some of the carbonyl ligands have been replaced by trivalent phosphorus ligands. In a preferred high pressure hydroformylation, the sulfur-containing naphtha and gas oil distillate feeds are produced from vacuum residue by high temperature thermal cracking. Such feeds contain more than 20% olefins with 1-n-olefins as the single major types. These olefin components are hydroformylated in the presence of a cobalt carbonyl complex to produce a novel type of semilinear aldehyde and/or alcohol product containing an average of less than one alkyl branch per molecule.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: May 1, 1990
    Assignee: Exxon Research & Engineering Company
    Inventors: Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Alexandr P. Glivicky, Barry G. Brueggeman, John R. Hooton, Charles M. Smith, Chang S. Hsu
  • Patent number: 4914246
    Abstract: There are disclosed novel compositions of matter comprising monoalkylphenols prepared by selectively alkylating the olefin component of a thermally cracked sulfur-containing petroleum distillate derived from residua. The monoalkylphenols have certain ortho to para ratios and may be used to prepare a number of useful derivatives such as ethoxylated and propoxylated surfactants, sulfoalkylated products, sulfurized antioxidants, overbased phenates, dithiophosphate derivatives, formaldehyde reaction products and similar methylene bridged products which are useful demulsifiers.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: April 3, 1990
    Assignee: Exxon Research & Engineering Company
    Inventors: Alexis A. Oswald, Ram N. Bhatia, Edmund J. Mozeleski, Darrell W. Brownawell, Thomas L. Ashcraft
  • Patent number: 4711968
    Abstract: This invention is a catalytic process for the hydroformylation of olefinic, sulfur-containing thermally cracked petroleum streams to produce aldehydes and/or alcohols. The catalysts are homogeneous transition metal carbonyl complexes. Especially preferred catalysts for low and medium pressure hydroformylation are cobalt and rhodium carbonyl hydride complexes in which some of the carbonyl ligands have been replaced by trivalent phosphorus ligands. In a preferred high pressure hydroformylation, the sulfur-containing gas oil distillate feed is produced from vacuum residua by high temperature thermal cracking. Such a feed contains more than 20% olefins with 1-n-olefins as the single major types. These olefin components are hydroformylated in the presence of a cobalt carbonyl complex to produce a novel type of semilinear aldehyde or alcohol product containing an average of less than one alkyl branch per molecule.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: December 8, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventors: Alexis A. Oswald, Ram N. Bhatia