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:
Nov. 30, 1993
Filed:
Jun. 26, 1992
Applicant:
Inventors:
John B Stone, Kingwood, TX (US);
George N Jones, Houston, TX (US);
Assignee:
Exxon Production Research Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 20 ; 62 24 ;
Abstract
A process for obtaining ethane and propane refrigerant from a lean feed gas is disclosed. Said process involves the addition of a small amount of propane to a stream of said lean feed gas, thus widening the phase envelope and increasing the ease of separation of the methane and nitrogen from heavier components.