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. 14, 2026
Filed:
Apr. 27, 2023
Mitsubishi Chemical Corporation, Tokyo, JP;
Naoki Noguchi, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A gas separation method including performing a gas separation operation that separates a source gas into a primary-side gas and a secondary-side gas with a membrane of a membrane module. The source gas contains a combustible component. The gas separation operation includes pressurizing the source gas and supplying the source gas to a primary side of the membrane module and depressurizing a secondary side of the membrane module to a pressure lower than an atmospheric pressure. The primary-side gas has a higher concentration of the combustible component than the secondary-side gas, and the gas separation method further includes detecting a composition of the secondary-side gas and stopping the gas separation operation in an instance in which the composition enters a specified range.