Acidic gas absorption material and method for manufacturing same

This acidic gas absorption material that reversibly absorbs acidic gas contained in a gas to be treated comprises porous metal oxide particles and an acidic gas absorption agent supported in the porous particles. The porous particles have bimodal pores that include mesopores having pore sizes in the...

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Hauptverfasser:	NUMAGUCHI, Ryohei, SHIMOMURA, Ikuo, OKUMURA, Takeshi, YOSHIZAWA, Katsuhiro, NISHIBE, Shohei, NEGAMI, Masahiro
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	This acidic gas absorption material that reversibly absorbs acidic gas contained in a gas to be treated comprises porous metal oxide particles and an acidic gas absorption agent supported in the porous particles. The porous particles have bimodal pores that include mesopores having pore sizes in the nanometer region with diameters 2-200 nm inclusive, and macropores having pore sizes in the micrometer region with diameters exceeding 0.2 μm. The macropores are empty and the mesopores are filled with the acidic gas absorption agent.