Patents by Inventor EH Deng

EH Deng 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).

  • Methods and apparatus for high propane recovery
    Patent number: 6601406
    Abstract: Methods and configurations for improved propane recovery plant employ an absorber column, and a deethanizer column with an overhead condenser that produces a reflux condensate. The reflux condensate is recycled to both the absorber column and the deethanizer column, and a third recycling loop feeds propane from the absorber column into the deethanizer column in a gaseous form. The overhead condenser employs cold reject gas from the absorber and/or propane as a refrigerant, and preferred deethanizer columns include an integral water removal contactor.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: August 5, 2003
    Assignee: Fluor Corporation
    Inventors: Eh Deng, John Mak, Richard B. Nielsen
  • Cryogenic expander recovery process
    Patent number: 4272269
    Abstract: A process is described for the separation and recovery of C.sub.3 and heavier hydrocarbons from a gaseous hydrocarbon containing feed stream such as natural gas or refinery gas in which the gaseous feed stream is cryogenically expanded and the expanded gas is brought into contact with an absorption medium. The C.sub.3 and heavier components are liquefied and subsequently subjected to distillation and recovered as liquid product.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: June 9, 1981
    Assignee: Fluor Corporation
    Inventors: James D. Hammond, EH Deng