Selective reduction of nitrogen oxides with hydrocarbons over solid acid catalysts in oxygen-rich atmospheres |
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Authors: | Yoshiaki Kintaichi Hideaki Hamada Mitsunori Tabata Motoi Sasaki Takehiko Ito |
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Affiliation: | (1) National Chemical Laboratory for Industry, Higashi, Tsukuba, 305 Ibaraki, Japan;(2) Cosmo Research Institute, Gongendo, Satte, 340-01 Saitama, Japan |
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Abstract: | Highly selective reduction of nitrogen oxides to dinitrogen occurs to a high level in oxygen-rich atmospheres by using a small amount of propane as a reducing agent over alumina, silica-alumina, titania and zirconia catalyst. Judging from the data of activity and ammonia TPD measurement on a series of silica-alumina catalysts, acidity is suggested to be one of the main factors that determine catalytic activity. |
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Keywords: | Nitrogen oxides selective reduction hydrocarbon propane solid acid catalysts alumina silica-alumina zirconia titania |
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