Patents Assigned to Chem Group, Inc.
  • Process for recovery of alkanolamines used in amine sweetening processes
    Patent number: 8921601
    Abstract: A process for recovering an alkanolamine from a used gas scrubbing stream wherein a dynamic reaction system is employed to maximize conversion of bis-urea compounds typically formed in the gas scrubbing operation into the alkanolamine and minimize the formation of amino ethers which irreversibly convert the alkanolamine. A method of removing waste products from the system by the use of a wiped film evaporator.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 30, 2014
    Assignee: Chem Group, Inc.
    Inventor: Michael G. Millard