低压脱丙烷塔运行分析及应对措施

乙烯工业 ›› 2023, Vol. 35 ›› Issue (4): 32-35.

低压脱丙烷塔运行分析及应对措施

王俊斌，李中华，李磊，康鸿才，马丽华

中国石油天然气股份有限公司独山子石化分公司，新疆独山子 833699

收稿日期:2022-09-05 修回日期:2023-08-10 出版日期:2023-12-25 发布日期:2023-12-19
作者简介:王俊斌，男，2009年毕业于西南石油大学化学工程与工艺专业，现任新疆独山子石化公司乙烯二部工艺工程师，从事分离装置日常生产及管理工作，高级技师。

Analysis and Countermeasures for Operation Bottlenecks of Low-pressure Depropanizer

Wang Junbin, Li Zhonghua, Li Lei, Kang Hongcai, Ma Lihua

PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833699

Received:2022-09-05 Revised:2023-08-10 Online:2023-12-25 Published:2023-12-19

摘要/Abstract

摘要： 介绍了独山子石化220 kt/a乙烯装置分离单元低压脱丙烷塔运行操作过程中出现的问题。通过对该塔物料组成分析，找出易产生聚合的组分，主要为丁二烯和环戊二烯，还有少量的苯乙烯，物料结垢造成塔釜液位计堵塞从而显示异常。针对低压脱丙烷塔操作中遇到的波动进行分析、探讨及危害识别，并制定出相对应的防范措施，确保了低压脱丙烷塔的长周期稳定运行。

关键词: 低压脱丙烷塔 , 结焦 , 操作优化

Abstract:

This paper introduces the problems in the operation of low-pressure depropanizer of the separation unit in the 220 kt/a ethylene plant of PetroChina Dushanzi Petrochemical Company. Through the analysis of the material composition in the tower, it is found that the components that easily polymerize are mainly butadiene and cyclopentadiene and a small amount of styrene, and the scaling will cause the blockage of the bottom level gauge, resulting in abnormal display. The fluctuations in the operation of the low-pressure depropanizer are analyzed and discussed, the hazards are identified, and some corresponding preventive measures are developed, so as to ensure the long-term stable operation of the low-pressure depropanizer.

Key words: low-pressure depropanizer, coking, operation optimization

王俊斌, 李中华, 李磊, 康鸿才, 马丽华. 低压脱丙烷塔运行分析及应对措施[J]. 乙烯工业, 2023, 35(4): 32-35.

Wang Junbin, Li Zhonghua, Li Lei, Kang Hongcai, Ma Lihua. Analysis and Countermeasures for Operation Bottlenecks of Low-pressure Depropanizer[J]. Ethylene Industry, 2023, 35(4): 32-35.

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