裂解气压缩机段间换热器结垢处理

乙烯工业 ›› 2022, Vol. 34 ›› Issue (3): 45-48.

裂解气压缩机段间换热器结垢处理

崔乃云，邓玮，许建雄，陈华

中海壳牌石油化工有限公司，广东惠州 516086

收稿日期:2021-08-03 修回日期:2022-03-11 出版日期:2022-09-25 发布日期:2022-09-20
作者简介:崔乃云，女，2014年毕业于中国石油大学（华东）化学工程与技术专业，工学硕士，主要从事乙烯装置技术支持工作，助理工程师。

Treatment of Fouling in Inter-stage Heat Exchangers of Cracking Gas Compressor

Cui Naiyun, Deng Wei, Chen Hua, Xu Jianxiong

CNOOC and Shell Petrochemicals Company Limited, Huizhou, Guangdong, P.C.516086

Received:2021-08-03 Revised:2022-03-11 Online:2022-09-25 Published:2022-09-20

摘要/Abstract

摘要：

近年来,随着管理和技术的进步,乙烯装置的运行周期普遍为5 a以上，如何在运行末期实现满负荷生产成为困扰很多装置的难题。其中，结垢是裂解气压缩机和换热器系统的主要问题之一。某乙烯装置在运行末期出现四段出口换热器压差高的问题，在充分评估换热器损坏、压缩机喘振等风险后，采用将换热器单组切出后离线清理的方式成功解决，该问题的解决给运行末期的乙烯装置消除了一个瓶颈，使装置在运行的第6年仍然实现满负荷生产。

关键词: 裂解气压缩机 , 换热器 , 结垢 , 离线清理

Abstract:

With the improvement in management and technology in recent years, the operation cycle of ethylene plant is generally more than five years. It becomes more difficult for an ethylene plant to operate at full capacity at the end of its run cycle. Fouling is one of the main problems in cracking gas compressor and heat exchanger system. In the 5^th year of operation of an ethylene plant, high DP problem occurred in the heat exchanger at the outlet of the fourth stage of compressor. After fully evaluating the risks of heat exchanger damage and compressor surge, this problem was successfully solved by isolating a single group of heat exchangers for offline cleanup. A bottleneck of ethylene plant at the end of its run cycle was eliminated, enabling the plant to operate at full capacity in the 6^th year.

Key words: cracking gas compressor, heat exchanger, fouling, offline cleanup

崔乃云, 邓玮, 许建雄, 陈华. 裂解气压缩机段间换热器结垢处理[J]. 乙烯工业, 2022, 34(3): 45-48.

Cui Naiyun, Deng Wei, Chen Hua, Xu Jianxiong. Treatment of Fouling in Inter-stage Heat Exchangers of Cracking Gas Compressor[J]. Ethylene Industry, 2022, 34(3): 45-48.

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