Experimental and numerical study of biomass flash pyrolysis in an entrained flow reactor.
Experimental and numerical study of biomass flash pyrolysis in an entrained flow reactor.
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DOI：
10.1016/j.biortech.2009.12.092
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发表时间：
2010-05
影响因子：
11.4
通讯作者：
Shaozeng Sun;Hongming Tian;Yijun Zhao;R. Sun;Hao Zhou
中科院分区：
文献类型：
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作者：
Shaozeng Sun;Hongming Tian;Yijun Zhao;R. Sun;Hao Zhou
在气流床反应器中对生物质(稻壳和木屑)在不同温度(700~1000℃)下进行了闪速热解实验。结果表明，温度对生物质闪速热解反应有较大影响。随着温度的升高，气体产率增加，而焦产率和液体产率下降。在热解初期，气体产率逐渐增加，这可能是由于低温下CO和CH4产率的增加，而高温下CO和H_2产率的增加。采用一级动力学模型描述了生物质闪速热解特性，确定了相应的动力学参数。对热解过程进行了数值模拟，预测的产气量与实验数据吻合较好。
Experiments on flash pyrolysis of biomass (rice husk and sawdust) were performed in an entrained flow reactor at different temperatures (700–1000°C). Results show that temperature has great impact on the biomass flash pyrolysis reactions. With the increase of temperature, the gas yield increased, while the yields of char and liquid decreased. After the early stage of pyrolysis, the gas yield increased gradually which could be attributed to the increase of CO and CH4yields at low temperature, while to the increase of CO and H2yields at high temperature. A first order kinetic model was employed to describe biomass flash pyrolysis characteristics and the relevant kinetic parameters were determined. Numerical simulation of pyrolysis process was carried out, the predicted yields of produced gases agreed reasonably with the experimental data.