Ca(OH)_2を含む石炭ブリケットの燃焼における脱フッ素特性

概要

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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_3 and Ca(OH)_2 were used as defluorination agents to decrease fluoride emissions during coal combustion. When the molar equivalency of Ca to F_2+S equaled 1.8, the resulting defluorination efficiency of Ca(OH)_2 was 50% and deSO_2 efficiency was 63% at 900℃. Experimental results showed that defluorination efficiency increased with increasing fuel ratio of coals or decreasing temperature. White-coal, made by coating the surface of a coal briquette with a thin layer of Ca(OH)_2, was tested as a new solid fuel. The result shows that the white-coal emits less fluorides and SO_2 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
2004-05-20