乙烷裂解制乙苯/苯乙烯项目粗分离装置工艺流程探讨

乙烯工业 ›› 2022, Vol. 34 ›› Issue (3): 17-20.

乙烷裂解制乙苯/苯乙烯项目粗分离装置工艺流程探讨

秦婷婷

中国石化工程建设有限公司，北京 100101

收稿日期:2022-01-26 修回日期:2022-02-26 出版日期:2022-09-25 发布日期:2022-09-20
作者简介:秦婷婷，女，2015年毕业于天津大学化学工艺专业，工学硕士，主要从事乙烯工艺的设计工作,工程师。

Discussion on Processes of Crude Separation Unit in Ethane Cracking to Ethylbenzene/Styrene Project

Qin Tingting

SINOPEC Engineering Incorporation, Beijing, P.C.100101

Received:2022-01-26 Revised:2022-02-26 Online:2022-09-25 Published:2022-09-20

摘要/Abstract

摘要：

为充分利用炼厂干气，采用小型裂解炉将炼厂干气中的乙烷进行热裂解，然后对裂解气进行粗分离，再用稀乙烯气制乙苯技术生产乙苯，进而生产苯乙烯，不仅能利用炼厂干气中的乙烷和乙烯资源，同时能推动炼油企业向化工转型，提高企业经济效益。对于稀乙烯法制乙苯苯乙烯项目中的粗分离装置，以某装置乙烯年产量120 kt/a的裂解气原料为基础，通过模拟对比苯吸收流程和中冷分离流程的能耗，探讨较优的工艺路线。

关键词: 乙烷裂解 , 乙苯/苯乙烯 , 粗分离装置 , 工艺流程 , 能耗

Abstract:

To make full use of refinery dry gas, ethane in refinery dry gas is cracked in a small cracking furnace, crude separation of the cracked gas is carried out, and dilute ethylene to ethylbenzene technology is used to produce ethylbenzene and then styrene. This can not only utilize the ethane and ethylene in refinery dry gas, but also promote the transformation from refining to chemical and improve the economic benefit of the enterprise. Based on a 120 kt/a ethylene plant, this article compares the energy consumption of benzene absorption process and intercooling separation process through simulation to explore a better process.

Key words: , ethane cracking；ethylbenzene and styrene；crude separation unit；technological process；energy consumption

秦婷婷. 乙烷裂解制乙苯/苯乙烯项目粗分离装置工艺流程探讨[J]. 乙烯工业, 2022, 34(3): 17-20.

Qin Tingting. Discussion on Processes of Crude Separation Unit in Ethane Cracking to Ethylbenzene/Styrene Project[J]. Ethylene Industry, 2022, 34(3): 17-20.