Catalytic Dehydrogenation of para-Diethyl Benzene to para-Divinyl Benzene over Iron Oxide Supported Catalyst

*Vivek Kumar Srivastava  -  Reliance Research and Development Center, India
Nagesh Sharma  -  Reliance Research and Development Center, India
Raksh V. Jasra  -  Reliance Research and Development Center, India
Received: 18 Jul 2018; Revised: 28 Nov 2018; Accepted: 17 Dec 2018; Published: 1 Aug 2019; Available online: 30 Apr 2019.
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The vapor-phase catalytic dehydrogenation of para-diethyl benzene (PDEB) to para-divinyl benzene (PDVB) with super-heated steam as a diluent was investigated using alumina supported iron oxide catalyst system. During the catalytic dehydrogenation reaction, ethyl styrene (EST) and thermal cracking products were observed as side products. It was found that various reaction parameters influence the rate of dehydrogenation reaction. However, the reaction is favored by high temperature and low reaction pressure. Moreover, addition of potassium into iron-oxide catalyst acts as a promoter and thereby increases the efficiency of the catalyst. The conversion of PDEB and yield of PDVB also increases as the Water/PDEB flow ratio increases. Copyright © 2019 BCREC Group. All rights reserved


Keywords: Dehydrogenation; para-Diethyl Benzene; para-Divinyl Benzene; Supported Iron Catalyst

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