logo

For the Inventor, By the Inventor

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.:

US 12458949 B1

PDFFull Text
Date of Patent:
Nov. 04, 2025

Filed:

Sep. 14, 2022

Gas separation method and zeolite membrane

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Katsuya Shimizu, Kasugai, JP;

Makiko Ichikawa, Nagoya, JP;

Kenji Yajima, Nagoya, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:

BURR PATENT LAW, PLLC

Primary Examiner:

Frank M Lawrence, Jr

Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 53/04 (2006.01); B01D 53/62 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/02 (2006.01); B01J 20/18 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
B01J 20/18 (2013.01); B01D 53/04 (2013.01); B01D 53/62 (2013.01); B01D 69/108 (2022.08); B01D 69/1213 (2022.08); B01D 69/1218 (2022.08); B01D 71/0215 (2022.08); B01J 20/28033 (2013.01); B01D 2253/108 (2013.01); B01D 2257/504 (2013.01);
Abstract

A gas separation method includes supplying a mixed gas to a zeolite membrane complex and permeating a high permeability gas through the zeolite membrane complex to separate the high permeability gas from other gases. The mixed gas includes a high permeability gas and a trace gas that is lower in concentration than the high permeability gas. The trace gas contains an organic substance whose molar concentration in the mixed gas is higher than or equal to 1.0 mol %. The adsorption equilibrium constant of the organic substance on the zeolite membrane is less than 150 times the adsorption equilibrium constant of the high permeability gas.

Find Patent Forward Citations

Shimizu, Katsuya. (2025). Gas separation method and zeolite membrane (U.S. Patent No. 12458949). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12458949

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…