【摘要】 本文进行了葡萄糖在拉内镍(Raney nickel)存在下的加氢反应动力学研究,反应温度383～413K,反应压力2.0～6.OMPa.根据实验结果筛选出一个合适的反应模型,即为吸附在催化剂表面上的葡萄糖分子和氢分子间进行的反应,产物山梨醇的脱附为速度控制步骤.本征动力学方程为;r=kK_Gc_GaK_Hp_H/(1+K_Gc_G+aK_Hp_H)更多还原

【Abstract】 Kinetics study on the hydrogenation of glucose to sorbitol on Raney nickel was undertaken at 110 K to 140 K and under pressure 2.0 MPa to 6.0 MPa. Based on the experimental result, a suitable reaction model was selected, i. e. the desorption of sorbitol with reaction between molecularly absorbed hydrogen and absorbed glucose on the catalyst surface could be the controlling step. The intrinsic kinetic equation could be written as:更多还原