• 关键词：脱氯半焦  固体衍生燃料  热重-红外联用  热解  分布活化能模型  动力学  废物处理

• 基金项目：湖南省研究生创新基金项目（No.CX2015B559）；湖南省湖南工业大学研究生创新基金项目；湖南工业大学"绿色包装与安全"博士生专项项目（No.2016ZBLB01）；湖南工业大学"绿色包装与安全"博士科研项目（No.D2014001）

• 刘珍
• 湖南工业大学长株潭两型社会研究院, 株洲 412007

• 王汉青
• 南华大学, 衡阳 421001

• 周跃云
• 湖南工业大学长株潭两型社会研究院, 株洲 412007

• 刘建文
• 湖南工业大学长株潭两型社会研究院, 株洲 412007

• 张晓东
• 长沙隆泰微波热工有限公司, 长沙 410125

• 摘要：利用热重红外分析仪（TG-FTIR）对包装废弃物添加了4种不同比例脱氯半焦制备而成的固体衍生燃料（SRF）的热解特性及热反应动力学进行了研究分析.研究发现，4种燃料热解过程主要包括4个阶段，其中300~400℃和400~500℃为两个主要失重阶段.前一阶段，SRF-1失重显著高于SRF-2、SRF-3和SRF-4，而后一阶段失重分别呈2、3、4倍增加.4种燃料热解残余量的顺序为SRF-4 < SRF-3 < SRF-2 < SRF-1，即添加了脱氯半焦的燃料热解程度越高.FTIR分析表明，添加了脱氯半焦的SRF燃料第三失重峰处不产生氯代烃.随脱氯半焦添加量的增加，第二失重峰CO₂产生的浓度减少；第三失重峰CH₄析出浓度增加；第四失重峰CO₂析出的浓度增加.采用DEAM分布活化能法得到，转化率α<0.3时，SRF-2和SRF-3的活化能均高于SRF-1的活化能，0.3 < α < 0.9时（α为0.6时除外），SRF-2、SRF-3和SRF-4 3种燃料的活化能低于SRF-1，且SRF-1的活化能呈升高的趋势，而其他3种燃料呈相反趋势.脱氯半焦的添加有利于SRF燃料的热解.

• Abstract：Experimental research on pyrolysis characteristics and thermal reaction kinetics of four kinds of solid recovered fuel (SRF) was conducted with thermo-gravimetric-Fourier transform infrared spectrometer (TG-FTIR). These SRFs were added with different ratio of dechlorinated char(0,5%,10%,15%)formed by low temperature microwave irradiation dechlorination of mixture chlorinated waste. It was found that the pyrolysis process could be divided into four stages, two main stages corresponding to the decomposition of biomass components(300~400℃)and plastic substances(400~500℃). At the former stage, the weight loss of SRF-1 was far more higher than that of SRF-2,SRF-3 and SRF-4, while at the latter stage the weight loss of SRF-2,SRF-3 and SRF-4 were two, there and four times increased respectively. The residual content order of the four SRFs was SRF-4 < SRF-3 < SRF-2 < SRF-1 indicating that the SRF with dechlorinated char had been more highly pyrolyzed. According to FTIR analysis, no chlorinated hydrocarbon was produced at the third weight loss peak. In addition, with the increasing dosage of dechlorinated char, the concentration of CO₂ in the second weight loss peak was reduced, the concentration of CH₄ in the third weight loss peak was increased and the concentration of CO₂ in the fourth weight loss peak was increased. The activation energy obtained by the DEAM method revealed that when α < 0.3, the E of SRF-2 and SRF-3 were higher than that of SRF-1, while when 0.3 <α< 0.9, the E of SRF-2, SRF-3 and SRF-4 were much lower than that of SRF-1. Moreover, the E of SRF-1 was on a rise while that of another three SRFs were on the decline. Anyway, adding of dechlorinated char was beneficial for the SRF pyrolysis.

• Key words：dechlorinated char  solid recovered fuel  TG-FTIR  pyrolysis  DEAM  kinetics  waste treatment

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