利用水平管式炉对两种高钙煤灰在氧/燃料燃烧条件下的碳酸盐化特性进行了研究,重点探究了H2O和SO2浓度对煤灰碳酸盐化反应的影响规律,并利用HSC Chemistry对实验现象进行了合理解释.研究结果表明,在无SO2的情况下,H2O的存在促进了煤灰的碳酸盐化反应,且碳酸盐化程度随H2O浓度的增大而增大;在相同H2O浓度下,SO2的加入对煤灰的碳酸盐化反应具有强烈抑制作用,且H2O浓度越高,这种抑制作用越明显;同时,SO2存在条件下,煤灰中Ca的反应程度明显降低.
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