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:
Apr. 09, 1996
Filed:
Mar. 24, 1995
Shinichi Kaji, Hyogo, JP;
Kazuo Haruna, Hyogo, JP;
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Abstract
A method of separating nitrogen-enriched gas is performed by PSA with the use of an apparatus which comprises a plurality of adsorbers (1, 2), a balance tank (3), and a product receiver (4). The method is characterized by comprising the steps of (a) passing, at a predetermined flow rate, high-purity nitrogen gas from the balance tank (3) to an outlet of an adsorber (2) undergoing regeneration; (b) establishing communication between the outlets of both adsorbers (1, 2) through a pressure equalization line while opening the inlets of both adsorbers to atmospheric pressure; (c) after the above step (b), causing a predetermined amount of high-purity nitrogen gas in the balance tank (3) to reversely pass via the outlet of the adsorber (2) which is to be switched from regeneration to adsorption while also supplying the crude gas through its inlet.