CAJ | 학술논문

针对O2/CO2燃烧技术适于采用炉内喷钙脱硫方式脱硫而钙利用率仍有较大提升空间的问题，采用木醋废液调质改性石灰石，并利用热分析方法对木醋调质石灰石在O2/CO2气氛下的直接硫化反应特性进行了试验研究。试验结果表明石灰石经木醋调质后直接硫化反应性能显著提高，反应温度、吸收剂粒径以及反应气氛中SO2和O2的浓度都对直接硫化反应存在影响，分析认为调质对石灰石热解固体产物微观结构的改善是脱硫性能得以显著提升的主因。
침대O2/CO2연소기술괄우채용로내분개탈류방식탈류이개이용솔잉유교대제승공간적문제，채용목작폐액조질개성석회석，병이용열분석방법대목작조질석회석재O2/CO2기분하적직접류화반응특성진행료시험연구。시험결과표명석회석경목작조질후직접류화반응성능현저제고，반응온도、흡수제립경이급반응기분중SO2화O2적농도도대직접류화반응존재영향，분석인위조질대석회석열해고체산물미관결구적개선시탈류성능득이현저제승적주인。
Calcium injection desulfurization method is suitable for O2/CO2 combustion technology. However,calci-um use ratio during sorbent injection desulfurization stil has a large room to improve. This research attempted to modify limestone by wood vinegar,an organic acid waste. Direct sulfation characteristics of limestone modified by wood vinegar were studied through thermal analysis method. Experimental results show that direct sulfation performance of limestone could be significantly improved after modified by wood vinegar. Temperature,particle size,SO2 and O2 concentrations could affect the direct sulfation reaction of limestone modified by wood vinegar. lmprovement of solid productsˊmicrostructure was considered to be the main reason improved desulfurization performance of limestone after modified by wood vinegar.