DENITRATION CATALYST REGENERATION METHOD AND DENITRATION CATALYST REGENERATION SYSTEM

Provided are a denitration catalyst regeneration method and a denitration catalyst regeneration system, which are capable of recovering denitration performance to a high level and reducing the SO2 oxidation rate of a catalyst. A denitration catalyst regeneration method according to the present inven...

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Bibliographic Details
Main Authors Nochi, Katsumi, Watanabe, Yoshiharu, Iwamoto, Kazuhiro, Yonemura, Masanao, Demoto, Masanori
Format Patent
LanguageEnglish
Published 19.05.2022
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Provided are a denitration catalyst regeneration method and a denitration catalyst regeneration system, which are capable of recovering denitration performance to a high level and reducing the SO2 oxidation rate of a catalyst. A denitration catalyst regeneration method according to the present invention includes: a chemical solution cleaning step for immersing a denitration catalyst in a chemical solution containing a fluorine compound and an inorganic acid; a step for extracting the denitration catalyst from the chemical solution; and a finish washing step for washing the denitration catalyst extracted from the chemical solution with a finish cleaning solution containing an organic acid.
Bibliography:Application Number: US201917441358