Fluor Corporation

Eh Deng

John Mak

Richard B Nielsen

James D Hammond

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.

Methods and apparatus for high propane recovery

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.

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Irvine, CA, United States of America

Eh Deng