低压甲烷压缩机拆除对乙烯装置运行的影响分析

乙烯工业 ›› 2021, Vol. 33 ›› Issue (2): 19-22.

低压甲烷压缩机拆除对乙烯装置运行的影响分析

刘永莉

中国石化工程建设有限公司，北京 100101

收稿日期:2021-04-06 修回日期:2021-04-08 出版日期:2021-06-25 发布日期:2021-06-17
作者简介:刘永莉，女，1998年毕业于天津大学化学工程专业，硕士，主要从事石油化工设计工作，高级工程师。

Influence of Early Removal of LP Methane Compressor on Ethylene Plant

Liu Yongli

SINOPEC Engineering Incorporation, Beijing, P.C.100101

Received:2021-04-06 Revised:2021-04-08 Online:2021-06-25 Published:2021-06-17

摘要/Abstract

摘要：

以某1 100 kt/a乙烯装置改造为例，介绍了低压甲烷压缩机提前拆除的项目背景，着重分析了压缩机停机后乙烯装置操作参数的变化情况，评估了氢气纯度降低对乙烯及下游各装置的影响，得出低压甲烷压缩机提前停机不会导致乙烯装置降负荷，也不会造成甲烷尾气排放到火炬。对该方案的可行性论证为业主制定停车改造方案提供了可靠技术依据。同时也为设置低压甲烷压缩机的乙烯装置处理机组非计划停车等特殊工况提供了方案借鉴。

关键词: 低压甲烷压缩机 , 拆除 , 氢气纯度 , 运行影响

Abstract:

Taking the reconstruction of a 1100 kt/a ethylene plant as an example, the project background of the early removal of low-pressure methane compressor is introduced, the changes in operation parameters of ethylene plant after compressor shutdown is analyzed, and the influence of hydrogen purity reduction on ethylene plant and downstream units is evaluated. The conclusion is that the early shutdown of the low-pressure methane compressor will not lead to load reduction of the ethylene plant or cause the discharge of methane tail gas to the flare. The feasibility demonstration of the scheme provides a reliable technical basis for the owner to formulate the shutdown and reconstruction scheme. At the same time, it provides reference for ethylene plants with low-pressure methane compressor to deal with special conditions such as the unplanned shutdown of compressor unit.

Key words: low-pressure methane compressor, removal; hydrogen purity, influence on operation

刘永莉. 低压甲烷压缩机拆除对乙烯装置运行的影响分析[J]. 乙烯工业, 2021, 33(2): 19-22.

Liu Yongli.

Influence of Early Removal of LP Methane Compressor on Ethylene Plant

[J]. Ethylene Industry, 2021, 33(2): 19-22.