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膜分离与吸收稳定系统耦合脱除乙苯原料气中的丙烯

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2007-12-15

Journal: 石油化工

Included Journals: Scopus、CSCD、ISTIC、PKU

Volume: 36

Issue: 12

Page Number: 1255-1260

ISSN: 1000-8144

Key Words: 乙苯;丙烯;催化裂化;吸收稳定;膜分离器;HYSYS软件

Abstract: 为使乙苯原料气中丙烯的摩尔分数降至0.3%,对吸收稳定系统工艺流程进行了改进,提出了膜分离与吸收稳定系统耦合的3种新工艺--吸收塔前串联膜分离器、吸收塔后串联膜分离器和再吸收塔后串联膜分离器;并用HYSYS流程模拟软件对新工艺进行了模拟计算.模拟计算结果表明,新工艺的冷负荷和热负荷分别比现有工艺降低了42.4%,28.2%,29.2%和44.5%,31.3%,31.6%.综合考虑各方案的冷热负荷、塔负荷和经济效益,吸收塔前串联膜分离器是脱除乙苯原料气中丙烯的最佳方案.

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