Patents Assigned to Butts Propertties, Ltd.
  • System and method for producing LNG from contaminated gas streams
    Patent number: 9016088
    Abstract: A system and method for removing nitrogen and producing liquefied natural gas (“LNG”) from methane without the need for external refrigeration. The invention also relates to a system and method for removing nitrogen from methane and for producing liquefied nitrogen in addition to LNG. The system and method of the invention are particularly suitable for use in recovering and processing comparatively small volumes of methane from coal mines or from flash gas captured at an LNG loading site.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 28, 2015
    Assignee: Butts Propertties, Ltd.
    Inventor: Rayburn C. Butts