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采用平推流反应器 ,在三种不同的Cu ZnO Al2 O3催化剂上对甲醇的蒸气重整制备氢气反应进行了研究。在常压 ,温度 180℃～ 2 4 0℃的条件下 ,在三种不同催化剂上对反应的动力学进行了测定 ,所获结果符合反应速率幂数模型 ,不同的催化剂相对于甲醇和水的反应级数分别均为 0 60及 0 4 5 ,对于ICI5 2 1,ICI5 3 1以及MDK 2 0催化剂所获得的活化能分别为 :92 8kJ mol、96 2kJ mol及 87 9kJ mol,与文献值吻合较好。所获动力学模型为甲醇重整反应条件优化以及反应器的数学模拟提供了一定的基础。
The reaction of steam reforming of methanol with hydrogen over the three different Cu ZnO Al 2 O 3 catalysts was studied using a push-flow reactor. The kinetics of the reaction was measured on three different catalysts under the conditions of normal pressure and temperature from 180 ℃ to 240 ℃, and the results were in accordance with the power rate model of reaction rate. Different catalysts showed higher catalytic activity than methanol and water The reaction orders were 0 60 and 0 4 5, respectively. The activation energies obtained for the catalysts ICI5 2 1, ICI5 3 1 and MDK 2 0 were 92 8 kJ mol, 96 2 kJ mol, and 87 9 kJ mol, respectively, in agreement with the literature values better. The kinetic model obtained provides a basis for the optimization of methanol reforming reaction conditions and the mathematical simulation of the reactor.