煤粉作为再燃燃料还原NO时，煤焦的异相机理起主要作用。
The heterogeneous mechanisms may be a main contribution to NO reduction using coals as reburning fuel.
而先进再燃达到相当的脱硝率则需要消耗超过15%的再燃燃料。
However, the advanced reburning will need over and above more than 15% of reburning fuel to reach a corresponding denitration efficiency.
褐煤作为再燃燃料时，煤焦的异相还原机理对NO还原起重要作用。
In the reburning zone using lignites as reburning fuels, the heterogeneous mechanisms may be an important contributor to NO reduction.
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