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:
Dec. 27, 2022
Filed:
Apr. 18, 2019
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Kenichi Noda, Nagoya, JP;
Takeshi Hagio, Inazawa, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 67/00 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0095 (2013.01); B01D 67/00 (2013.01);
Abstract
A drying method for a separation membrane includes supplying a gas for drying to the separation membrane so that a value obtained by dividing the difference between a maximum value and a minimum value of a flow rate of the gas for drying on a membrane surface of the separation membrane by the minimum value of the flow rate is less than or equal to 15%. The gas for drying is less than or equal to 40 degree C. and contains a water-soluble gas that has a solubility in 1 cmof water of greater than or equal to 0.5 cmin conditions of 40 degree C. and 1 atmosphere.