Abstract: The pyrolysis of coconut shell, coconut shell residue and de-ashed coconut shell residue was studied with the thermogravimetric technique, and the pyrolysis kinetics models were established.It was found that for coconut shell residue and de-ashed coconut shell residue, pyrolysis mainly occurred between 280—370℃, and there was only a single peak in their DTG curves.But in the case of raw coconut shell, two stages of 230—300℃ and 300—350℃, were involved in the pyrolysis process, which resulted in two peaks in the DTG curve.Apparent activation energies for the pyrolysis of these three materials were estimated, and the difference of apparent activation energies in the low temperature range was more evident than in the high temperature range and the highest reaction rate appeared in the high temperature stage.When used for making activated carbon, coconut shell residue and de-ashed coconut shell residue have more advantages than coconut shell.The pyrolysis temperature is in a narrow range.The pyrolysis process is easy to control and is noted for energy saving.

摘要： 用热重技术分析了椰壳类活性炭原料的热解过程，采用Coats-Redfern积分法求解了热解反应动力学模型。椰壳渣及脱灰椰壳渣热解失重过程主要集中在280~370℃之间，在热失重速率曲线上呈单峰，而椰壳热解失重主要集中在230~300℃和300~350℃两个温度范围，在热失重速率曲线上呈双峰。在低温段三者热解反应表观活化能差别较大，高温段差别较小，且最大反应速率均出现高温段。