Ammoniacal, E.g., Cu Ammonium Acetate (caa), Etc. Patents (Class 585/846)
Triple-bond compound separated (Class 585/847)
  • Continuous process for the removal of water from a hydrocarbon stream
    Patent number: 7077950
    Abstract: Process for the continuous drying of a hydrocarbon stream at a temperature being effective in drying the stream with an ionic liquid drying agent comprising a salt of sulphuric acid being in liquid or melted form at the drying temperature.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: July 18, 2006
    Assignee: Haldor Topsoe A/S
    Inventor: Sven Ivar Hommeltoft
  • Deep selective hydrogenation process
    Patent number: 6297414
    Abstract: The present invention provides an improved method for deep selective hydrogenation for use in recovering high purity olefins from cracked gas effluents or other paraffin/olefin gaseous mixtures by use of a chemical absorption process.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 2, 2001
    Assignee: Stone & Webster Process Technology, Inc.
    Inventors: Richard Barchas, Peter Bell
  • Chemical absorption process for recovering olefins from cracked gases
    Patent number: 5859304
    Abstract: The present invention provides an improved method for recovering high purity olefins from cracked gas effluents or other parafin/olefin gaseous mixtures by use of a chemical absorption process.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: January 12, 1999
    Assignee: Stone & Webster Engineering Corp.
    Inventors: Richard Barchas, Richard McCue, Jr., Christopher Wallsgrove, Mark Whitney