The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1987
Filed:
Jul. 08, 1986
George J Montgomery, IV, Houston, TX (US);
Hafez K Aghili, Katy, TX (US);
McDermott International, Inc., New Orleans, LA (US);
Abstract
A method for extracting natural gas liquids from a gas stream that has a high content of hydrogen and carbon dioxide is shown. This gas stream is scrubbed, dehydrated, filtered compressed and chilled prior to entering a demethanizer where the overhead residue gas consisting of hydrogen, nitrogen and methane are separated from the demethanizer bottoms product. Ths bottoms product is then warmed prior to entering a de-ethanizer where ethane, ethylene, and carbon dioxide are separated from the de-ethanizer bottoms product which consists of the heavier compounds of propylene, propane, butane, pentane and the like. The cold demethanizer residue gas is used to cool the incoming inlet gas stream via an inlet gas cooler, and expanded vapor from a high pressure separator is cross exchanged with the de-ethanizer overhead product stream.