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:
Dec. 01, 1987
Filed:
Mar. 20, 1986
Applicant:
Inventors:
Rainer Sapper, Neuried, DE;
Helmut Kick, Irschenhausen, DE;
Assignee:
Linde Aktiengesellschaft, Wiesbaden, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 28 ; 62 41 ; 62 42 ;
Abstract
A process for the separation of CO.sub.2 from gases containing light hydrocarbons and a relatively high proportion of CO.sub.2 comprises a two stage fractionation procedure. In a first fractionating stage, the entire amount of C.sub.1 and C.sub.2 hydrocarbons are separated from the gaseous mixture; the resultant bottoms fraction, which contains the C.sub.3+ hydrocarbons and CO.sub.2, is pumped to a higher pressure and further distilled in a second fractionating stage. During this process, the head cooling of the second fractionating stage is coupled with the bottoms heating of the first fractionating stage.