低碳化学与化工2024，Vol.49Issue(3)：73-78,6.DOI:10.12434/j.issn.2097-2547.20230192
变压吸附分离技术在催化干气乙烯回收中的应用
Application of pressure swing adsorption separation technology in ethylene recovery from catalytic dry gas
章海春 1王一程 2陈中明 3张宏宇3
作者信息
- 1. 中国石化扬子石油化工有限公司,江苏 南京 210048
- 2. 中国石油广西石化分公司,广西 钦州 535000
- 3. 西南化工研究设计院有限公司 国家碳一化学工程技术研究中心,工业排放气综合利用国家重点实验室,四川 成都 610225
- 折叠
摘要
Abstract
Three technologies for recovering ethylene from catalytic dry gas,including cryogenic separation,absorption separation,and pressure swing adsorption separation,were introduced.In the context of a structural adjustment of a petrochemical company's refining process,where the catalytic dry gas production capacity increased from 15×104 t/a to 21×104 t/a,pressure swing adsorption technology was chosen due to its advantages,such as simple operation,no need for auxiliary materials,rapid and stable unit operation under changing conditions,and low comprehensive energy consumption.Following the principles of capacity expansion and renovation,the previous two-stage process was converted into a single-stage process.The number of towers in the vacuum step was increased from 2 to 3,and the number of towers in the adsorption step was increased from 4 to 5.The results show that after the capacity expansion and renovation,comprehensive energy consumption is reduced by approximately 14%with product quality remaining comparable,and the operation indicators improve,compared to before the modification.In the background of reducing carbon emissions,pressure swing adsorption separation technology has an application advantage due to its lower comprehensive energy consumption compared to other technologies.关键词
催化干气/变压吸附分离技术/乙烯回收Key words
catalytic dry gas/pressure swing adsorption separation technology/ethylene recovery分类
化学化工引用本文复制引用
章海春,王一程,陈中明,张宏宇..变压吸附分离技术在催化干气乙烯回收中的应用[J].低碳化学与化工,2024,49(3):73-78,6.
