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:
Mar. 26, 2024
Filed:
Mar. 30, 2020
Ube Corporation, Ube, JP;
Tomohide Nakamura, Ube, JP;
Nobuhiko Fukuda, Ube, JP;
UBE CORPORATION, Ube, JP;
Abstract
A gas separation system includes: a first gas separation membrane unit; a second gas separation membrane unit; a material gas feed line connected to a gas inlet port of the unit; a first compressor interposed to the line; a first connection line connecting a permeated gas discharge port of the unit and a gas inlet port of the unit; and a second connection line connecting a non-permeated gas discharge port of the unit and the line. The unit and unit each have a gas separation selectivity of 30 or greater. The CHrecovery rate is 98% or higher. The COcontent in non-permeated gas of the unit is 5 mol % or less. The flow rate of gas fed to the unit is 60% or less of the flow rate of material gas fed to the unit.