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. 21, 1994
Filed:
Jul. 19, 1993
Paulino Forte, Yonkers, NY (US);
UOP, Des Plaines, IL (US);
Abstract
A process is disclosed for the purification of natural gas in which the reduction of the nitrogen content of a natural gas stream is achieved by a combination of absorption, purification, flashing, and reflux steps. More specifically, the process achieves the rejection of inert components such as nitrogen from hydrocarbon gas streams without operating in the cryogenic temperature range. The process uses a lean solvent to absorb the non-rejected components in a recovery zone of an absorber and uses a cooled light gas stream to purify the rich solvent in a purification zone of the absorber. The process can be employed to reject hydrogen and recover C.sub.3 +hydrocarbons from a dehydrogenation reaction zone integrated with an etherification zone for the production of ethers to improve recovery and lower operating costs.