摘要
对于在固定床催化反应器中进行的强放热反应,当初始条件达到或超过某一限度时,反应系统瞬间产生的热量超过了反应系统本身所能承受的限度或负荷,造成热点温度急剧升高,导致反应系统失去控制,对反应的转化率、选择性以及催化剂的活性和寿命等都有不良影响。对反应系统参数敏感性的研究,实质上就是从理论上揭示出反应系统安全操作上限,使之由于温度升高引起的不良后果能在反应器的设计中和操作前就能避免。文中对上述问题进行了详尽而完整的概括,对今后的发展提出了建议。
For a strong exothermic reaction in a fixed catalytic bed reactor, when the inlet parameters reach or surpass the certain limit, the heat generated by chemical reaction will greatly surpass the heat removed from reaction system, it brings about hot spot temperature to jump up rapidly and be out of control. So there are bad influences on process conversion, selectivity, catalytic activity and span-life. To study the parametric sensitivity is mainly to reveal a safe operation upper limit in theory, thus these bed effects can be avoided in the earlier stages of reactor design and before operation. This paper gives a detail and full summarization for the above problems and advice on henceforth development.
出处
《化工进展》
EI
CAS
CSCD
1999年第3期36-39,共4页
Chemical Industry and Engineering Progress
基金
中国石化总公司和天津市青年科学基金资助项目
