Physical Property and Activity for NO Reduction with NH<SUB>3</SUB> over V<SUB>2</SUB>O<SUB>5</SUB>-CaO-Al<SUB>2</SUB>O<SUB>3</SUB> Catalyst (I)
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Effects of the range of mean pore radius, pore volume and surface area over V<SUB>2</SUB>O<SUB>5</SUB>-CaO-Al<SUB>2</SUB>O<SUB>3</SUB> catalysts for NO reduction with NH<SUB>3</SUB> has been studied using a conventional flow reactor in the temperature range from 250 to 450°C under atmospheric pressure. Inlet gas concentration was 150ppm NO, 150ppm NH<SUB>3</SUB>, 3% O<SUB>2</SUB>, 1, 000 ppm SO<SUB>2</SUB>, 7.5% H<SUB>2</SUB>O (N<SUB>2</SUB> balance) and the space velocity was 15, 000h<SUP>-1</SUP>. The activities of the catalysts depend on a pore size, in particular, V<SUB>2</SUB>O<SUB>5</SUB>-CaO-Al<SUB>2</SUB>O<SUB>3</SUB> catalyst with peaks at 60-70 and 700Å revealed high NO reduction efficiencies in the temperature range from 250 to 450°C, furthermore, the catalytic activity did not change for 1, 000h at 350°C in the presence of SO<SUB>x</SUB> and H<SUB>2</SUB>O.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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