Catalytic effect of selenium and selenium dioxide on the devolatilization of Yallourn coal.
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Devolatilization of Yallourn coal with selenium and selenium dioxide were examined under nitrogen atmosphere in the temperature range of 653 to 873 K using thermogravimetric method. The H<SUB>2</SUB>, CH<SUB>4</SUB> and CO released from coal were analyzed in the temperature range. It has been shown that selenium and selenium dioxide catalysts accel-erate the volatilization reaction above 723 K. Particularly, the CO evolution was promoted at 773 K and the amount of CO released from coal with the catalysts was about 8 or 12 times as much as without the catalysts. Furthermore, the CO/CH<SUB>4</SUB> volumetric ratio over the both catalysts was larger than that in the absence of the catalysts, namely the catalysts accelerated CO evolution selectively.
- 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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