Honeywell International Inc.

Uop Lcc

David Farr

Jan De Ren

William J Whyman

Jeffrey Garrison

Manu Gustaaf Rosa Van Leuvenhaege

David M Thom

A design is provided to convert a gas subcooled process plant to a recycle split vapor process for recovering ethane and propane from natural gas. When in operation, the recovery of ethane and propane can exceed 97 to 99 wt. % of the stream being processed. A second smaller demethanizer column is added to the gas subcooled process plant as well as the addition of several cryogenic pumps.

Gas subcooled process conversion to recycle split vapor for recovery of ethane and propane

Processes for natural gas production are described. The processes involve combining a membrane separation system and a thermal oxidizing system. The high and low hydrocarbon permeate streams from the membrane separation system are introduced into the thermal oxidizing system separately. The high hydrocarbon permeate stream provides fuel for the thermal oxidizing system, allowing a reduction in external fuel usage. The reduction in total fuel required yields increased gas production for the total plant. A solvent based acid gas removal system can optionally be included.

Process for natural gas production

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Tulsa, OK, United States of America

David Farr