Patents by Inventor John W. Colton

John W. Colton 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).

  • Pretreatment of raw natural gas prior to liquefaction
    Patent number: 4150962
    Abstract: High pressure raw natural gas is prepared for liquefaction by first removing water and acid gases and then expanding the gas from the wellhead pressure to remove shaft horsepower. The expanded gas is scrubbed with a C.sub.4 rich liquid previously separated from the gas to remove heavy hydrocarbons and then further dried and passed to the liquefaction zone.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: April 24, 1979
    Assignee: UOP Inc.
    Inventor: John W. Colton
  • Pretreatment of raw natural gas prior to liquefaction
    Patent number: 4070165
    Abstract: High pressure raw natural gas is prepared for liquefaction by first removing water and acid gases and then expanding the gas from the wellhead pressure to remove shaft horsepower. The expanded gas is scrubbed with a C.sub.4 rich liquid previously separated from the gas to remove heavy hydrocarbons and then further dried and passed to the liquefaction zone.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: January 24, 1978
    Assignee: UOP Inc.
    Inventor: John W. Colton