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. 08, 1987
Filed:
Dec. 19, 1986
Shanmuk Sharma, Houston, TX (US);
Donnie K Hill, Woodlands, TX (US);
Charles A Durr, Houston, TX (US);
The M. W. Kellogg Company, Houston, TX (US);
Abstract
A process for separation of a high pressure gas stream such as refinery gas in which the starting gas mixture is cooled and separated into a first vapor portion and a first liquid portion which is expanded to an intermediate pressure. The first vapor portion is further cooled and separated into a second vapor portion which may be further processed for ultimate recovery of, for example, a methane-rich product gas and a second liquid portion which is expanded to essentially the same intermediate pressure and combined with the expanded first liquid portion. The resulting mixed intermediate pressure stream or a portion thereof is then employed as refrigerant.