碳二洗涤塔设计对脱甲烷系统分离工艺影响分析
INFLUENCE OF CONDENSATING-FRACTIONATING TOWER DESIGN ON SEPARATION PROCESS OF DEMETHANIZER SYSTEM
欧阳熠玫1
作者信息
- 1. 中国石化工程建设有限公司,北京 100101
- 折叠
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.
Abstract
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.
关键词
乙烯分离工艺/碳二洗涤塔/模拟优化Key words
ethylene separation process/condensating-fractionating tower/simulation optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据