摘要
对中国石化自主开发的低能耗乙烯技术工艺进行了深化研究,分析了装置中碳二洗涤塔设计对脱甲烷塔系统的影响,并对脱甲烷系统进行了模拟优化。结果表明:适当降低碳二洗涤塔的温度可大幅减少乙烯损失,同时提高氢气产品纯度。将碳二洗涤塔塔顶温度控制在约-122℃可使乙烯回收率和氢气纯度处于较高水平,同时将冷量的消耗控制在合理范围。
The Low Energy Consumption Technology(LECT)developed by SEI is studied in detail,the influence of condensating-fractionating tower design on demethanizer system is analyzed,and the demethanizer system is simulated and optimized.The results show that properly reducing the temperature of condensating-fractionating tower can greatly reduce the ethylene loss while improving the purity of hydrogen product.Maintaining the overhead temperature of condensating-fractionating tower at about-122℃can ensure relatively high ethylene yield and hydrogen purity and keep the consumption of cooling capacity within a reasonable range.
作者
欧阳熠玫
Ouyang Yimei(SINOPEC Engineering Incorporation,Beijing,P.C.100101)
出处
《乙烯工业》
CAS
2024年第2期15-17,21,I0001,共5页
Ethylene Industry
关键词
乙烯分离工艺
碳二洗涤塔
模拟优化
ethylene separation process
condensating-fractionating tower
simulation optimization
