中文摘要：

基于Gibbs自由能最小化法，利用HSC Chemistry软件对木材热解过程进行了热化学平衡计算。讨论了温度对热化学平衡产物组成和比例的影响，并把热解过程划分为4个阶段。首次根据自发反应的判据即反应的Gibbs自由能变与温度关系讨论了产物相互之间反应，由此确定热解各个阶段可能发生的反应。最后总结了文献中实验研究温度对木材热解产物影响情况，并与计算结果比较，结果表明，所预测的不同温度下木材热解产物分布特性与前人的实验结果相似。

英文摘要：

Based on the Gibbs free energy minimization method, HSC chemistry software was used to calculate the thermochemical equilibrium of wood pyrolysis. The effect of temperature on composition and proportion of products of wood pyrolysis was discussed and pyrolysis process was divided into four zones. According to the criterion of spontaneous reaction （the relationship between Gibbs free energy and temperature）, the reaction among products was discussed for the first time, and then the proper reactions at each zone were determined. At last, the effect of temperature on the wood pyrolysis products reported in literature is summarized, and the calculation results were found to be similar with experimental results of prior authors.