乙烯装置分离技术环保减排及能耗优化

乙烯工业 ›› 2022, Vol. 34 ›› Issue (4): 9-14.

乙烯装置分离技术环保减排及能耗优化

郑文兢

中科（广东）炼化有限公司，广东湛江 524076

收稿日期:2022-05-03 修回日期:2022-07-18 出版日期:2022-12-25 发布日期:2022-12-30
作者简介:郑文兢，男，2004年毕业于广东石油化工学院化学工程与工艺专业，学士，主要从事乙烯生产经营管理工作，高级工程师。

Environmental Protection, Emission Reduction and Energy Consumption Optimization of Separation Technology for Ethylene Plant

Zheng Wenjing

ZhongKe (Guangdong) Refinery & Petrochemical Company Limited, Zhanjiang, Guangdong, P.C.524076

Received:2022-05-03 Revised:2022-07-18 Online:2022-12-25 Published:2022-12-30

摘要/Abstract

摘要：

某800 kt/a乙烯装置采用国产裂解技术及环保低能耗乙烯分离技术。对该分离流程进行了介绍，从急冷系统增设密闭蒸煮、乙烯精馏塔压控、乙烯直送下游装置、乙烯球罐减排、低温原料冷量回收5方面进行了设计优化。有效提高了乙烯分离流程的灵活性、先进性，减少了装置的非必要排放，降低了运行成本，实现装置更环保、节能生产。

关键词: 乙烯分离 , 环保减排 , 冷量回收 , 乙烯直送

Abstract:

An 800 kt/a ethylene plant adopts domestic cracking technology and environmentally-friendly low-energy-consumption ethylene separation technology. The separation process is introduced, and design optimization is carried out such as installing closed steaming in quench system, reducing the pressure in ethylene rectification tower, directly sending ethylene to downstream units, reducing the emission of ethylene spherical tank and recovering cold energy from low-temperature raw materials. These optimizations can effectively improve the flexibility and progressiveness of ethylene separation process, reduce the unnecessary emissions, reduce the operation cost, and achieve a more environmentally-friendly and energy-saving production of the plant.

Key words: ethylene separation, environment protection and emission reduction, cold energy recovery, direct delivery of ethylene

郑文兢. 乙烯装置分离技术环保减排及能耗优化[J]. 乙烯工业, 2022, 34(4): 9-14.

Zheng Wenjing. Environmental Protection, Emission Reduction and Energy Consumption Optimization of Separation Technology for Ethylene Plant[J]. Ethylene Industry, 2022, 34(4): 9-14.