环己烷连续脱氢反应研究  

Dehydrogenation of Cyclohexane under Multiphase Condition

作　　者：刘凯[1] 安越[1] 徐国华[1] 陈长聘[1] 

机构地区：[1]浙江大学材料与化学工程学院,杭州310027

出　　处：《西安交通大学学报》2007年第12期1495-1498,共4页Journal of Xi'an Jiaotong University

基　　金：国家重点基础研究发展计划资助项目(2007CB209700);浙江省重大科技计划资助项目(2006C11233)

摘　　要：以Raney-Ni为催化剂,在多相态反应模式下,对环己烷多滴连续进料的脱氢反应过程进行了研究,考察了单滴反应液用量对环己烷脱氢速率和脱氢转化率的影响.实验发现,当环己烷单滴用量较小时,前一滴环己烷的脱氢反应对后续加入的环己烷的脱氢反应基本没有影响,但当单滴用量较大时,后续加入的环己烷在脱氢量及脱氢速率方面明显下降.通过对实验过程的分析认为,多相态反应模式的关键是对系统能量平衡的控制.The dehydrogenation of cyclohexane catalyzed by Raney-Ni in a multi-dropwise manner under wet-dry multiphase conditions for on-board hydrogen source system is investigated. The effects of reactant supply on the conversion and evolution rate of cyclohexane and the dehydrogenation kinetics of cyclohexane are discussed. The experimental results reveal that the former introduced cycolhexane exerts slight influence on dehydrogenation of the following ones when the reactant supply is small while the influence becomes obvious with the increasing reactant supply, which indicates that the energy balance serves as the key to multiphase reaction.

关 键 词：环己烷 脱氢 多相态 

分 类 号：TK91[动力工程及工程热物理]