摘要
尾气精馏塔是前脱丙烷前加氢工艺中深冷分离单元的关键组成部分,承载着对乙烯、乙烷、甲烷、氢气的分离作用,达到减小乙烯损失,提高乙烯收率、降低脱甲烷塔及乙、丙烯制冷压缩机的制冷负荷的目的。通过对尾气精馏塔在高负荷情况下运行状态的分析,阐述了在尾气精馏塔系统设备、裂解工况不变的条件下,影响尾气精馏塔在高负荷下运行的因素。通过操作调整和技术改造实现该系统在高负荷下的“长满优”运行状态。
Tail gas distillation column is a key component of the cryogenic separation unit in front-end depropanization front-end hydrogenation process. It separates ethylene, ethane, methane and hydrogen for the purpose of reducing ethylene loss, improving ethylene yield, and reducing the cooling load of demethanizer, ethylene refrigeration compressor and propylene refrigeration compressor. Based on the operation analysis of the tail gas distillation column under high load, the factors influencing the operation of tail gas distillation column are discussed under the condition that the system equipment of tail gas distillation column and the cracking conditions remain unchanged. Through operation adjustment and technical transformation, the long-term, full-load and high-quality operation of the system under high load was achieved.
作者
张林涛
刘正明
史云伟
彭志荣
Zhang Lintao;Liu Zhengming;Shi Yunwei;Peng Zhirong(PetroChina Sichuan Petrochemical Company Limited,Chengdu,Sichuan,P.C.611930)
出处
《乙烯工业》
CAS
2019年第3期18-21,I0001,共5页
Ethylene Industry
关键词
乙烯装置
尾气精馏
乙烯
调整
ethylene plant
tail gas distillation
ethylene
adjustment
