CATALYST CLEANING METHOD, CATALYST CLEANING DEVICE, AND PROGRAM

Title:

CATALYST CLEANING METHOD, CATALYST CLEANING DEVICE, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2021/100609

Kind Code:

A1

Abstract:

A catalyst cleaning method including: a step for supporting a honeycomb-structured catalyst above a cleaning liquid so that an opening surface of the catalyst and the liquid surface of the cleaning liquid face each other; and a step for lowering the catalyst and immersing the catalyst in the cleaning liquid. In the immersing step, the length of time from when the catalyst touches the cleaning liquid until the entirety of the catalyst is immersed in the cleaning liquid is at least 5 minutes. The cleaning liquid thereby slowly penetrates from the opening surface on the lower side of the catalyst, and air contained in ash inside the catalyst bleeds out from the opening surface on the upper side of the catalyst.

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Inventors:

NOCHI KATSUMI (JP)
IWAMOTO KAZUHIRO (JP)
YONEMURA MASANAO (JP)
WATANABE YOSHIHARU (JP)
MUKAI DAISUKE (JP)

Application Number:

PCT/JP2020/042287

Publication Date:

May 27, 2021

Filing Date:

November 12, 2020

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Assignee:

MITSUBISHI POWER LTD (JP)

International Classes:

B01J38/62

Foreign References:

JP2005199108A	2005-07-28
JP2011031237A	2011-02-17
JPH03135A	1991-01-07
JPH04225842A	1992-08-14
JP2019010635A	2019-01-24

Attorney, Agent or Firm:

MATSUNUMA Yasushi et al. (JP)

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