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:
May. 22, 2012
Filed:
Dec. 27, 2007
Tomohide Nakamura, Ube, JP;
Nozomu Tanihara, Ube, JP;
Shunsuke Nakanishi, Ube, JP;
Ube Industries, Ltd., Ube-shi, JP;
Abstract
A gas separation membrane module has a vessel housing a hollow fiber element including a hollow fiber bundle consisting of a number of hollow fiber membranes () and a tube sheet () holding one end of the hollow fiber bundle. The interior of the vessel is partitioned by the tube sheet () into two spaces consisting of a raw gas chamber and a permeate gas chamber. A high-pressure mixed gas is fed into the raw gas chamber where gas separation is carried out. The gas separation membrane module has a configuration where during operation, the tube sheet () is supported by means of a perforated plate () in the vessel by a pressure from the mixed gas fed to maintain airtightness between the two spaces and when the tube sheet () receives a pressure in the reverse direction to that applied during the operation of the gas separation membrane module, the tube sheet () is forced to move within the vessel by the pressure in the reverse direction, thereby losing airtightness between the two spaces.