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:
Jun. 29, 2021
Filed:
Jul. 07, 2016
Mitsubishi Power, Ltd., Yokohama, JP;
Tomotsugu Masuda, Yokohama, JP;
Masanao Yonemura, Tokyo, JP;
Masanori Demoto, Yokohama, JP;
Kazuhiro Iwamoto, Tokyo, JP;
Toshinobu Yasutake, Tokyo, JP;
Makoto Yokoyama, Yokohama, JP;
MITSUBISHI POWER, LTD., Yokohama, JP;
Abstract
Provided are: a cleaning agent for a denitration catalyst; and a denitration catalyst regeneration method and a denitration catalyst regeneration system which make it possible to efficiently remove matter adhering to a surface of a catalyst and to greatly restore catalytic performance. The regeneration method includes: a prewashing step (S) of washing a denitration catalyst with water; a liquid agent cleaning step (S) of immersing the denitration catalyst washed with water in a liquid agent containing an inorganic acid and a fluorine compound; a step of recovering the denitration catalyst from the liquid agent; and a finish washing step (S) of washing the denitration catalyst recovered from the liquid agent with a finish cleaning liquid which is water or sulfamic acid-containing water.