Patents by Inventor Richard H. McCue

Richard H. McCue 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).

  • METHOD FOR PRODUCING OLEFINS BY DILUTE FEED CRACKING OF REFINERY OFF-GAS AND OTHER LIGHT HYDROCARBONS
    Publication number: 20120053383
    Abstract: The present invention is directed to a method for producing, inter alia, olefins from refinery saturated and unsaturated off-gas. Furthermore, said refinery streams are not required to undergo deoxygenation reaction in a separate reactor system provided they are fed to the pyrolysis furnace. The refinery off-gases are treated to produce olefins such as ethylene and propylene. Gases from petrochemical facilities, gas separation plants and similar facilities that produce light gases containing ethane and propane are useful in the present method.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Applicant: Stone & Webster Process Technology, Inc.
    Inventors: Wadie MALATY, Richard H. McCue, David J. Brown, William Larson
  • Process based mixed refrigerants for ethylene plants
    Patent number: 5768913
    Abstract: A process and system for providing cooling service (refrigerant) for a gas separation process wherein the refrigerant is obtained from the system process fluid and after serving as refrigerant is returned to the process side for separation into product.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: June 23, 1998
    Assignee: Stone & Webster Engineering Corp.
    Inventors: Richard H. McCue, Jr., Mark Whitney, John L. Pickering, Jr., David Chen
  • Mixed phase front end C.sub.2 acetylene hydrogenation
    Patent number: 5414170
    Abstract: The present invention provides an improved process for selectively hydrogenating acetylenes in an olefin plant process stream by selectively hydrogenating the acetylenes downstream of a front end depropanizer and upstream of further separation zones such as a demethanizer and/or de-ethanizer.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: May 9, 1995
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Richard H. McCue, Edna B. Hicks
  • Cryogenic separation of gaseous mixtures
    Patent number: 5035732
    Abstract: A cryogenic technique for recovering ethene from a gaseous mixture containing methane, ethane, etc. Operating methods and apparatus are provided for passing the gas feed through a chilling train having a series of dephlegmator-type exchange units to condense liquid rich in ethene and ethane, while separating a major portion of methane and lighter gas. A multizone demethanizer removes condensed methane from the C.sub.2 fraction to provide multiple methane free liquid streams of varying ethene to ethane ratio at least one of which is essentially C.sub.3 free.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: July 30, 1991
    Assignee: Stone & Webster Engineering Corporation
    Inventor: Richard H. McCue, Jr.
  • Cryogenic separation of gaseous mixtures
    Patent number: 4900347
    Abstract: A cyrogenic technique for recovering ethene from a gaseous mixture containing methane, ethane, etc. Operating methods and apparatus are provided for passing the gas feed through a chilling train having a series of dephlegmator-type exchange units to condense liquid rich in ethene and ethane, while separating a major portion of methane and lighter gas. A multizone demethanizer removes condensed methane from the C.sub.2 fraction to provide a pure product economically.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: February 13, 1990
    Assignee: Mobil Corporation
    Inventors: Richard H. McCue, Jr., John L. Pickering, Jr.