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:
Jan. 01, 1991
Filed:
Sep. 28, 1989
Abstract
Process for separating a gaseous mixture by adsorption includes the steps of: (a) a cocurrent isobaric production (f.sub.p1 -f.sub.p2); (b) a pressure equalization between the adsorber undergoing decompression and another adsorber undergoing countercurrent recompression (f.sub.c1 -N.sub.4); (c) a cocurrent partial emptying to a reservoir (f); (d) a final countercurrent decompression (f.sub.a); (e) a countercurrent scavenging by the gas of the reservoir (f.sub.b); (f) a countercurrent partial recompression by at least one pressure equalization (f'.sub.e); (g) a countercurrent final recompression (f'.sub.di -F'.sub.d2); in which process the sum of the duration of the operations according to (c) and (d) is less than said phase shift and the sum of the durations of the operations according to (c), (d) and (e) is less than twice said phase shift; (h) at least two adsorbers are simultaneously in isobaric production, wherein: (i) the number of adsorbers is at least equal to four and less than 3+x+y, x and y being respectively the number of adsorbers in production and the number of pressure equalizations; (j) the emptying is introduced into the storage reservoir; (k) each pressure equalization is 'direct'.