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:
Aug. 30, 1988
Filed:
Apr. 04, 1986
Applicant:
Inventor:
Fred Apffel, Houston, TX (US);
Assignee:
Flexivol, Inc., , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 24 ; 62 34 ; 62 40 ; 62 42 ; 62 44 ;
Abstract
A process for separating a nitrogen rich hydrocarbon stream is disclosed. The process includes cooling the stream in a series of indirect heat exchanges to separate successively lighter components from heavier components of the stream. After the first cooling stage, the stream is separated into a heavy component stream and a light component stream. The heavy component is distilled to form a heavy product stream and a first methane rich gas stream. The lighter component stream is successively cooled and split into a second methane rich gas stream and a nitrogen rich, low heating value stream.