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1. (WO2018142651) ACID GAS TREATMENT AGENT

Pub. No.:    WO/2018/142651    International Application No.:    PCT/JP2017/028719
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Aug 09 01:59:59 CEST 2017
IPC: B01J 20/04
B01D 53/50
B01D 53/68
B01D 53/83
B01J 20/28
Applicants: KURITA WATER INDUSTRIES LTD.
栗田工業株式会社
Inventors: MIZUSHINA Keiichi
水品 恵一
Title: ACID GAS TREATMENT AGENT
Abstract:
Provided is an acid gas treatment agent: with which it is possible, even with a small quantity, to efficiently treat acid gas; with which it is possible to considerably improve consolidation and an increase in the differential pressure at a bag filter; and that is also superior in terms of cost. The acid gas treatment agent according to the present invention contains sodium hydrogen carbonate. Also, the median diameter (D50) of the sodium hydrogen carbonate is 11 to 25 μm inclusive, and the ratio (Dm/D50) of the mode diameter (Dm) with respect to the median diameter is equal to or less than 2.0. It is preferable that the difference between the median diameter (D50) and cumulative weight at 30% diameter (D30) be equal to or less than 15 μm, and it is preferable that the difference between the cumulative weight at 70% diameter (D70) and the median diameter (D50) be equal to or less than 15 μm.