Abstract: The global reaction rates of methanol decomposition of C207 Cu-based catalyst under atmospheric pressure were determined in an internal recycle gradientless reactor and mlet. 7.19×10-4) with addition of H2S for 4 hours, 8 hours and 12 hours respectively. The pore size distribution, and the tortuosity factors of φ 5 × 5mm cyindrica catalyst pellets were also measured. Hydrogen sulfide poisoning of commerial catalyst is considered as surface poisoning. The experimental values of non-poisoned dimensionless radius xc by Auger Electron Spectroscopy were 0.038 0.916 and 0.960 with addition of H2S for 4 hours, 8 hours and 12 hours respectively, which agreed with the values calculated by intrinsic deactivation kinetics. The single component model and multicomponent model of effectiveness factor ξd of surface poisoned catalyst were presented and solved by orthogonal collocation and Broyden method. Not only surface poisoning but also center equilibrium dead zone was found in catalyst pellets. The average of absolute values of relative deviations between experimental values and calculated values lor ξd was less than 11%. The models can be used to calculate the effectiveness factor of surface poisoned catalyst.

摘要： 在常压下内循环无梯度反应器中测定了工业颗粒C207铜基化剂在入口硫化氢含量7.19×10~(-4)通硫化氢4、8、12h后甲醇分解反应宏观速率,测定了催化剂孔径分布和曲折因子.由俄歇电子能谱测定获得,通H_2S 4h未中毒比半径x_c为0.938,通H_2S 8h为0.916,通H_2S 12h为0.896,与由本征失活动力学获得的计算值相符合.探讨了计算表面中毒催化剂效率因子的甲醇单组分模型和多组分模型的正交配置解,解决了颗粒催化剂存在表面中毒和中心平衡死区的效率因子的求解问题,中毒催化剂效率因子的实验值与模型计算值的相对误差,其绝对值的平均值在11%以内,表明表面中毒催化剂效率因子的计算模型是可行的.