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Research on the control of fluoride emissions from coal combustion is necessary to solve a serious fluoride pollution problem. In this work, CaCO<SUB>3</SUB> and Ca (OH) <SUB>2</SUB> were used as defluorination agents to decrease fluoride emissions during coal combustion. When the molar equivalency of Ca to F<SUB>2</SUB>+S equaled 1.8, the resulting defluorination efficiency of Ca (OH) <SUB>2</SUB> was 50% and deSO<SUB>2</SUB> efficiency was 63% at 900°C. Experimental results showed that defluorination efficiency increased with increasing fuel ratio of coals or decreasing temperature.<BR>White-coal, made by coating the surface of a coal briquette with a thin layer of Ca (OH) <SUB>2</SUB>, was tested as a new solid fuel. The result shows that the white-coal emits less fluorides and SO<SUB>2</SUB> in both volatile content combustion and char combustion.
- 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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