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:
Feb. 26, 1985
Filed:
Jul. 15, 1983
Applicant:
Inventor:
Ravindra F Pahade, North Tonawanda, NY (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 28 ; 62 31 ; 62 33 ; 62 34 ; 62 40 ;
Abstract
A cryogenic process to more efficiently separate nitrogen from a nitrogen-containing hydrocarbon stream wherein the separate recovery of natural gas liquids is increased and the final nitrogen removal from natural gas is accomplished at lower than conventional pressures. The nitrogen-methane separation column is driven by a closed loop heat pump circuit that utilizes a nitrogen-methane mixture.