Patents Assigned to Chemica Research & Licensing Company
  • Recovery of alcohol from hydrocarbon streams
    Patent number: 5430197
    Abstract: Excess alcohol, e.g. methanol contained in a C.sub.4 -C.sub.6 hydrocarbon stream is removed in process using less water and energy than a conventional water wash by subjecting the stream to a first single stage water wash with 2 to 10 wt % water based on the hydrocarbon where most of the alcohol is removed and then washing the raffinate having reduced methanol therefrom subjected to multistage water wash to remove the remainder of the alcohol.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 4, 1995
    Assignee: Chemica Research & Licensing Company
    Inventor: Edward M. Jones, Jr.