【摘要】 对多相态条件下环己烷的连续脱氢反应进行研究,考察盐浴温度、进料速率以及催化剂(Raney-Ni)用量对环己烷连续脱氢反应的影响。研究发现:当盐浴温度370℃,进料速率25mL/h,催化剂用量3g时,环己烷连续脱氢反应系统的综合性能达到最佳,其产氢速率可达27mL/min,生成氢气的纯度为88%,环己烷的脱氢转化率为8.2%。对290～410℃盐浴温度下环己烷连续脱氢表观反应动力学的研究表明,反应的表观活化能约为12.57kJ/mol。更多还原

【Abstract】 The continuous dehydrogenation of cyclohexane catalyzed by Raney-Ni under multi-phase reaction conditions was studied.The influences of the salt bath temperature,feeding rate of cyclohexane and catalyst dosage on the continuous dehydrogenation reaction were investigated systematically.The experimental results showed that under the conditions of the salt bath temperature at 370℃,feeding rate of 25mL/h and catalyst dosage of 3g,the overall performance of the reaction system achieved its optimal,with the hydrogen evolution rate of 27mL/min,purity of hydrogen 88% and conversion of cyclohexane 8.2%.The apparent kinetic study on the continuous dehydrogenation reaction of cyclohexane showed that,within the salt bath temperature ranged from 290℃ to 410℃,the apparent activation energy of the continuous dehydrogenation reaction was 12.57kJ/mol.更多还原