Adsorption of SO2 over Alkali Metal Ion-exchanged ZSM-5 zeolites.

Masahiro Katoh; Ichiro SAWAYAMA; Tatsuya Yamazaki; Sentaro Ozawa

doi:10.1246/nikkashi.1995.177

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Adsorption of SO2 over Alkali Metal Ion-exchanged ZSM-5 zeolites.

Masahiro Katoh Ichiro SAWAYAMA Tatsuya Yamazaki Sentaro Ozawa

Year: 1995 Journal: NIPPON KAGAKU KAISHI Pages: 177-183 Publisher: Chemical Society of Japan

DOI: 10.1246/nikkashi.1995.177

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Abstract

種々のアルカリ金属イオンでイオン交換したZSM--5にSO2を吸着させ,吸着量測定,および種々の分光学的測定(IR,XPS,XRF)と吸着相互作用ポテソシャルの理論計算を行い,吸着状態の解明を行った.理論計算結果は物理吸着したSO2に二つの安定な吸着構造が存在することを示唆し,IR測定によってその存在が確認された.分光学的手法で求められた不可逆吸着量は,吸着量測定において観測された値よりもかなり小さく,微量の強く吸着したSO2,または含硫黄吸着種がゼオライトの内部や細孔の入口に閉塞空間を生じ吸着を阻害しているものと考えられた.

Keywords:

Alkali metal ZSM-5 Adsorption Chemistry Zeolite Inorganic chemistry Ion Ion exchange Molecular sieve Organic chemistry Catalysis

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Zeolite Catalysis and Synthesis

Physical Sciences → Chemistry → Inorganic Chemistry

Chemical Synthesis and Characterization

Physical Sciences → Environmental Science → Industrial and Manufacturing Engineering

Industrial Gas Emission Control

Physical Sciences → Engineering → Mechanical Engineering

Adsorption of SO2 over Alkali Metal Ion-exchanged ZSM-5 zeolites.

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