Catalyst as ignition source of an explosion inside a microreactor
Catalyst as ignition source of an explosion inside a microreactor
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DOI：
10.1016/j.ces.2012.08.049
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发表时间：
2012-12
影响因子：
4.7
通讯作者：
S. Heinrich;F. Edeling;C. Liebner;H. Hieronymus;T. Lange;E. Klemm
中科院分区：
文献类型：
--
作者：
S. Heinrich;F. Edeling;C. Liebner;H. Hieronymus;T. Lange;E. Klemm
本期报告了连续流动微反应器中多相催化乙烯氧化的安全工程的一个具体方面。在不同的反应器温度和总流量下，用化学计量的乙烯/氧气混合物进行全氧化，监测了乙烯转化率和相应的催化剂表面温度。高放热氧化的安全操作是可能的，但不是在整个参数范围内。在较高的反应器温度和流量下，首次观察到催化剂表面热斑引起的微反应器内爆炸。
The present issue reports on a specific aspect of safety engineering of the heterogeneously catalysed oxidation of ethene in a continuous-flow microreactor. Conversion of ethene and the corresponding surface temperature of the catalyst were monitored for different reactor temperatures and total flow rates with a stoichiometric ethene/oxygen mixture for total oxidation. Safe operation of the highly exothermic oxidation was possible, but not in the whole parameter range. At high reactor temperatures and flow rates, ignition of an explosion inside the microreactor caused by a hot spot on the surface of the catalyst was observed for the first time.