摘要
中国石油化工股份有限公司北京燕山分公司乙烯装置2011年大检修期间更换了脱甲烷塔进料分离罐,开车后高压甲烷中氢气含量大幅降低,减少了氢气损失,但脱甲烷塔运行不稳定,塔顶温度波动频繁。介绍了该前冷及脱甲烷塔系统的运行现状,结合现场实际情况、其它乙烯装置运行调整经验及模拟优化文献,分析了脱甲烷塔运行不稳定的原因,提出了操作调整的方向。
SINOPEC Beijing Yanshan Company replaced the demethanizer feed separator in ethylene plant during the overhaul in 2011. After start-up,the hydrogen content in high-pressure methane was significantly reduced and hydrogen loss was reduced,but the operation of demethanizer was unstable and the overhead temperature fluctuated frequently. This article introduces the operation status of cold box system and demethanizer in Yanshan ethylene plant,analyzes the reasons for the unstable operation of demethanizer based on the actual situations on site,the operation and adjustment experiences of other ethylene plants and the simulation optimization literatures,and proposes some adjustment measures.
出处
《乙烯工业》
CAS
2013年第2期24-27,5,共4页
Ethylene Industry
关键词
冷箱
脱甲烷塔
冷量优化
Cold box
Demethanizer
Energy balance
