Patents by Inventor Nancy C. Benkalowycz

Nancy C. Benkalowycz 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: 7166742
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 23, 2007
    Assignee: The Standard Oil Company
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Publication number: 20040106822
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Publication number: 20020058833
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Application
    Filed: October 17, 2001
    Publication date: May 16, 2002
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5710318
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding a gaseous mixture comprising ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: January 20, 1998
    Assignee: The Standard Oil Company
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5550281
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding a gaseous mixture comprising ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: August 27, 1996
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5300684
    Abstract: Disclosed is a process for oxidizing ethane to acetic acid which comprises feeding ethane and a recycle gas to a fluidized bed reaction zone containing fluidized particulate solid oxidation catalyst, feeding a molecular oxygen-containing gas separately from said ethane to said reaction zone so that said molecular oxygen-containing gas first mixes with the major portion of the combustible hydrocarbon feed gases within the fluidized bed, said process including the steps of (1) cooling the gaseous effluent from the reaction zone, (2) separating most of the acetic acid in liquid form from the effluent gases, leaving a gaseous stream containing nearly all of the carbon oxides contained in said effluent, (3) purging a small portion of said gaseous stream and recycling most of said gaseous stream as part of the feed to said reaction zone,wherein said purging serves to prevent build-up of carbon oxides in the reaction zone, and said recycling serves to maintain a high proportion of carbon oxides in said reaction zone
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: April 5, 1994
    Assignee: The Standard Oil Company
    Inventors: Nancy C. Benkalowycz, Patricia R. Blum, David R. Wagner