Research on Coal Pyrolysis Property for Polygeneration Technology

摘要：

A circulating fluidized bed heat-power-gas-tar polygeneration technology has been developed which is based on the property of coal pyrolysis. To study the effect of temperature and coal type on pyrolysis behavior, the pyrolysis process of four different types of coal was investigated by TG-FT1R. The results showed that, at the heating rate of 25 ℃/rain, pyrolysis process could be divided into four stages, namely drying stage, preheating stage, primary pyrolysis stage and secondary pyrolysis stage. Primary pyrolysis process was described as first-order reaction model and kinetic parameters were calculated by Coats-Redfern method at different temperature ranges. TG-FTIR coupled with kinetic analysis revealed the formation mechanism and variation of gas products, such as CO, CO2, CH4, during pyrolysis process. Pyrolysis laws provided a reference for achieving the target gas products by controlling temperature and selecting suitable coal type during polygeneration process.

关键词： pyrolysis TG FTIR kinetic polygeneration

作者: Su Wenjuan Fang Mengxiang Cen Jianmeng Luo Zhongyang

作者单位: State Key Laboratory of Clean Energy Utilization Institute for Thermal Power Egineering, Zhejiang Un State Key Laboratory of Clean Energy Utilization Institute for Thermal Power Engineering, Zhejiang U

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 191-197

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）