碳二洗涤塔设计对脱甲烷系统分离工艺影响分析

乙烯工业 ›› 2024, Vol. 36 ›› Issue (2): 15-17.

碳二洗涤塔设计对脱甲烷系统分离工艺影响分析

欧阳熠玫

中国石化工程建设有限公司，北京 100101

收稿日期:2023-08-09 修回日期:2024-01-12 出版日期:2024-06-25 发布日期:2024-06-26
作者简介:欧阳熠玫，女，2017年毕业于德国马格德堡大学化工与能源工程专业，理学硕士，主要从事石油化工工艺的设计工作，工程师。

Influence of Condensating-fractionating Tower Design on Separation Process of Demethanizer System

Ouyang Yimei

SINOPEC Engineering Incorporation, Beijing, P.C.100101

Received:2023-08-09 Revised:2024-01-12 Online:2024-06-25 Published:2024-06-26

摘要/Abstract

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。

关键词: 乙烯分离工艺 , 碳二洗涤塔 , 模拟优化

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 °C can ensure relatively high ethylene yield and hydrogen purity and keep the consumption of cooling capacity within a reasonable range.

Key words: ethylene separation process, condensating-fractionating tower, simulation optimization

欧阳熠玫. 碳二洗涤塔设计对脱甲烷系统分离工艺影响分析[J]. 乙烯工业, 2024, 36(2): 15-17.

Ouyang Yimei. Influence of Condensating-fractionating Tower Design on Separation Process of Demethanizer System[J]. Ethylene Industry, 2024, 36(2): 15-17.