废轮胎热裂解技术研究现状与进展

结合目前废旧轮胎资源化处理现状及研究成果，本文对热解机理、热解技术进行分析、对比，着重介绍了热解温度、升温速率、物料粒径、催化剂等工艺参数对热解产物产率的影响，分析表明Coast-Redfern积分法所得动力学模型较准确，平均反应活化能为129.5kJ/mol；现有的研究表明，热解温度对产物产率影响最大，气相产物与液相产物产率随温度升高而增加，其中液相产物产率相对较高的热解温度在500~550℃范围内，固相产物品质较高的热解温度在500~650℃范围内。其次对其固、液、气三相产物特性及应用和污染物（S、PAHs）的分布与控制方法做了归纳总结，为废旧轮胎热解技术向工业化发展提供技术依据。

Research status and progress of waste tire pyrolysis technology

According to the current research of waste tire treatment, the pyrolysis mechanisms and technologies were analyzed and compared. The effects of process parameters such as pyrolysis temperature, heating rate, material particle size and catalyst on the yield of pyrolysis products were discussed seriously. It indicated that the kinetic model proposed by the Coast-Redfern integration method was more accurate relatively, and the average reaction activation energy was about 129.5kJ/mol. The current research indicated that the pyrolysis temperature had the greatest influence on the products yield, and the yield of gas and liquid products increased with increasing temperature. Relative higher yield of liquid products and higher quality of solid products were able to be achieved in the pyrolysis temperature ranges of 500—550℃ and 500—650℃, respectively. Furthermore, the characteristics and applications of the solid, liquid and gas three-phase products were analyzed and summarized, as well as the distributions and control methods of pollutants (S, PAHs), to provide a technical basis for the industrial development of waste tire pyrolysis technology. The technology references for the industrial application of waste tire pyrolysis were concluded consequently.