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:
Jun. 03, 1986
Filed:
May. 29, 1985
Applicant:
Inventors:
Ravindra F Pahade, North Tonawanda, NY (US);
John B Saunders, Tonawanda, NY (US);
James J Maloney, Tonawanda, NY (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 31 ; 62 34 ; 62 40 ;
Abstract
A process for the separation of methane and nitrogen in a cryogenic distillation column driven by a closed loop recirculating fluid heat pump wherein additional column refrigeration is generated by rejecting process heat into a product stream thereby reducing the need for expansion of process streams and enabling recovery of product at relatively high pressure.