C207铜基催化剂常压甲醇分解反应动力学(Ⅱ)催化剂效率因子正交配置解

Reaction Kinetics of Methanol Decomposition over C207 Cu-Based Catalyst (Ⅱ) Orthogonal Collocation Solution for Effectiveness Factor

在内循环无梯度反应器中常压下测定了工业颗粒C207催化剂甲醇分解反应宏观速率,测定了催化剂孔径分布和曲节因子,获得了催化剂效率因子的实测值。探讨了计算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,颗粒催化剂存在中心平衡死区。在相同反应条件下,催化剂效率因子模型计算值与实测值的相对误差的绝对值的平均值在11%以内,结果表明计算模型是可行的。

The global reaction rates of methanol decomposition over ψ5×5mm cylindrical pellets of C207 Cu-based catalyst under atmospheric pressure in an internal recycle gradientless reactor, the pore size distribution and the tortuosity factor of catalyst were measured. The effectiveness factors obtained experimentally are between 0.1938 and 0.5226. The single component model and multicomponent model for catalyst effectiveness factor are presented and solved by the orthogonal collocation method. The dead zone of center equilibrium exists in pellets. The average of absolute value of relative deviations between experimental values and model calculated values of effectiveness factor is less than 11 per cent. The models are feasible for the calculation of catalyst effectiveness factor.