文献类型：期刊文献

中文题名：乙苯脱氢制苯乙烯工艺流程模拟

英文题名：Process Simulation for Ethylbenzene Dehydrogenation to Styrene

作者：丁中海[1];顾雄毅[1];隋志军[1];周兴贵[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2009

卷号：38

期号：4

起止页码：412

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金重点项目(20736011);教育部创新团队发展计划项目(IRT0721)

语种：中文

中文关键词：乙苯;苯乙烯;脱氢;氧化;工艺流程;模拟

外文关键词：ethylbenzene ; styrene ; dehydrogenation ; oxidation ; technological process; simulation

摘要：采用AspenPlus化工流程模拟软件对乙苯两段脱氢、乙苯三段脱氢、乙苯脱氢-氧化和乙苯脱氢-氧化-换热4种乙苯脱氢制苯乙烯工艺的流程进行模拟。模拟结果表明,乙苯脱氢-氧化和乙苯脱氢-氧化-换热工艺脱氢过程的蒸汽用量比乙苯两段脱氢工艺降低35%和37%;乙苯脱氢-氧化和乙苯脱氢-氧化-换热工艺由于氢气氧化反应器的存在,尾气中氢气的量较少,尾气压缩机的功耗比乙苯两段脱氢工艺降低38%和67%;乙苯脱氢-氧化工艺和乙苯脱氢-氧化-换热工艺乙苯的单程转化率达到80%以上,循环乙苯量较乙苯两段脱氢工艺大幅降低,因此这两种工艺分离过程的蒸汽用量比乙苯两段脱氢工艺减少15%和17%。
Four processes for ethylbenzene dehydrogenation to styrene including the ethylbenzene two-stage dehydrogenation, ethylbenzene three-stage dehydrogenation, ethylbenzene dehydrogenationoxidation and ethylbenzene dehydrogenation-oxidation-heat exchange processes were simulated by using Aspen Plus software for the sake for providing a guidance of selecting a more economical process in new plant design. The comparison of the processes were mainly directed against traditional ethylbenzene two stage dehydrogenation. The steam consumption of the two dehydrogenation-oxidation processes could be saved by 35% and 37% in comparing with ethylbezene two-stage dehydrogenation process. The installation of hydrogen burning reactor obviously decreased hydrogen in tail-gas. The compressor power consumptions of the two processes therefore decreased 38% and 67%. Single pass conversion of ethylbenzene in both processes reached more than 80%, so the cycling ethylbenzene of both processes decreased substantially. The related steam consumptions of distillation part dropped by 15% and 17%.