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. 03, 2001
Filed:
May. 05, 1999
Shunsuke Nakanishi, Ichihara, JP;
Masao Kikuchi, Ichihara, JP;
Yoshihiro Kusuki, Ichihara, JP;
Tatsuo Yamamoto, Ube, JP;
Mitsuo Maeda, Ube, JP;
Ube Industries, Ltd., Yamaguchi, JP;
Abstract
A mixed gas-separating membrane module having a high separating efficiency includes a cylindrical container having a mixed gas-feed section, a non-permeated gas-delivery section, and a middle section; a bundle of a plurality of hollow fibers each extending through the middle section and each having an end portion opening to the mixed gas-feed section and an opposite end portion opening to the non-permeated gas-delivery section; a pair of a first disk supporting the hollow fiber end portion opening to the mixed gas-feed section and partitioning the middle section from the mixed gas-feed section, and a second disk supporting the opposite hollow fiber end portions opening to the non-permeated gas-delivery section and partitioning the middle section from the non-permeated gas-delivery section, the first and second disks supporting the hollow fibers so that the hollow fibers are spaced from each other, to leave a continuous space between the hollow fibers; and a cylindrical film member surrounding the hollow fiber bundle to such an extent that the continuous space formed between the hollow fibers is connected to a permeated gas-delivery outlet of the middle section, the middle section, having a permeated gas-delivery outlet located close to the first disk and a carrier gas-feed inlet located close to or in the second disk, to allow the carrier gas fed into the middle section to flow through the continuous space, countercurrently to the flow of the mixed gas through the hollow fibers.