Patents Assigned to American Gas & Technology, Inc.
  • Patent number: 5386699
    Abstract: Method for liquifying natural gas comprising regulating the pressure of the natural gas from a pressure ranging from 0-25 psig. Contaminants are filtered out of the regulated natural gas. The natural gas is then compressed to a higher pressure. At least a one-stage heat exchange is performed with the compressed natural gas by utilizing a coolant to provide a cooled compressed natural gas. A Joule Thompson valve is used to liquify at least a portion of the cooled compressed natural gas. The liquified natural gas is stored in a dewar. Unliquified natural gas passing from the dewar is utilized to provide cooling of the natural gas during the heat exchange. The unliquified natural gas is then recompressed. The recompressed natural gas is subjected to the same steps to liquify an additional portion of the recompressed natural gas.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: February 7, 1995
    Assignee: American Gas & Technology, Inc.
    Inventors: Albert H. Myers, Raymond E. Tate, Jr., Harold M. Lee, Dragos Sfinteanu
  • Patent number: 5327730
    Abstract: Method for liquifying natural gas comprising regulating the pressure of the natural gas from a pressure ranging from 0-25 psig. Contaminants are filtered out of the regulated natural gas. The natural gas is then compressed to a higher pressure. At least a one-stage heat exchange is performed with the compressed natural gas by utilizing a coolant to provide a cooled compressed natural gas. A Joule Thompson valve is used to liquify at least a portion of the cooled compressed natural gas. The liquified natural gas is stored in a dewar. Unliquified natural gas passing from the dewar is utilized to provide cooling of the natural gas during the heat exchange. The unliquified natural gas is then recompressed. The recompressed natural gas is subjected to the same steps to liquify an additional portion of the recompressed natural gas.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: July 12, 1994
    Assignee: American Gas & Technology, Inc.
    Inventors: Albert H. Myers, Raymond E. Tate, Jr., Harold M. Lee, Dragos Sfinteanu