裂解原料重质化对重组分分离塔的影响及对策

乙烯工业 ›› 2025, Vol. 37 ›› Issue (3): 14-18.

裂解原料重质化对重组分分离塔的影响及对策

黄以翔，郑文兢，李恒

中科（广东）炼化有限公司，广东湛江 524076

收稿日期:2024-11-08 修回日期:2025-04-20 出版日期:2025-09-25 发布日期:2025-09-28
作者简介:黄以翔，男；2012年毕业于广东石油化工学院化学工程与工艺专业，工学学士，主要从事乙烯装置工艺管理工作，工程师。

Impact of Heavier Cracking Feedstocks on Heavy Component Separation Towers and the Countermeasures

Huang Yixiang, Zheng Wenjing, Li Heng

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

Received:2024-11-08 Revised:2025-04-20 Online:2025-09-25 Published:2025-09-28

摘要/Abstract

摘要：

根据某800 kt/a蒸汽裂解装置在裂解原料重质化、劣质化工况下，存在各重组分分离塔的高负荷运行控制及原料重质化带来的物料结垢速率上升两大难题。文中分析各重组分分离塔的长周期高负荷运行及物料聚合结垢对工艺系统正常运行所存在的问题，并通过工艺操作优化、设备检修策略、设计脱瓶颈改造3个方面提出优化措施，保障蒸汽裂解装置各重组分分离塔长周期安全生产。

关键词: 原料重质化 , 高压脱丙烷塔 , 脱丁烷塔 , 超负荷

Abstract:

With heavier and deteriorated cracking feedstocks, an 800 kt/a steam cracking unit faces two major challenges, i.e., the high-load operation control of heavy component separation towers and the increased fouling rates due to the heavier feedstock. This paper analyzes the impact of long-term high-load operation of heavy component separation towers and the material polymerization and fouling on the normal operation of the process system. Some optimization measures are proposed from the aspects of process operation optimization, equipment maintenance strategies and design debottlenecking modifications to ensure the long-term safe production of the heavy component separation towers in steam cracking unit.

Key words: heavier feedstock;high-pressure depropanizer;debutanizer, overload

黄以翔, 郑文兢, 李恒. 裂解原料重质化对重组分分离塔的影响及对策[J]. 乙烯工业, 2025, 37(3): 14-18.

Huang Yixiang, Zheng Wenjing, Li Heng. Impact of Heavier Cracking Feedstocks on Heavy Component Separation Towers and the Countermeasures[J]. Ethylene Industry, 2025, 37(3): 14-18.