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:
Sep. 16, 2025
Filed:
Sep. 23, 2020
Sekisui Chemical Co., Ltd., Osaka, JP;
Tomoya Hasegawa, Tokyo, JP;
Kazuto Natsuyama, Tokyo, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
Provided are a method for producing a purified gas, which, when a valuable material is generated from a waste-derived raw material gas, can efficiently remove a phase transitioning impurity contained in the raw material gas, a method for producing a valuable material, a gas purification apparatus, and an apparatus for producing a valuable material. A method for producing a purified gas, comprising removing an impurity in a waste-derived raw material gas, the method comprising: a solid-phased impurity removing step Sof passing the raw material gas through a phase transitioning impurity removing unit to remove a solid-phased phase transitioning impurity in the raw material gas; and an impurity removing step Sof passing the raw material gas after the solid-phased impurity removing step through a pressure swing adsorption apparatus combined with a vacuum pump to remove an impurity in the raw material gas.