通过不同的技术对单乙烯糖醇经济生产进行比较研究
Walaa M Shehata1, Taha G Nady2, Fatma K Gad3
1Petroleum Refining and Petrochemical Engineering Department Faculty of Petroleum and Mining Engineering, Suez University, P.O. Box: 43221, Suez, Egypt. walaa.sliman@suezuniv.edu.eg.
Scientific reports
|November 17, 2024
概括
乙烯氧化物 (EO) 的间接水化以产生单乙烯甘醇 (MEG) 比直接水化更具成本效益和环保性. 该工艺能降低能源消耗和减少温室气体排放,使其更适合大规模MEG生产.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 过程化学 过程化学
- 环境科学 环境科学
背景情况:
- 单乙烯甘醇 (MEG) 是一种重要的化学中间体,应用范围不断扩大,包括用于减少柴油发动机的排放.
- 对MEG需求的增加需要高效,成本效益和环保的生产方法.
- 目前的生产主要依赖于乙烯氧化物 (EO) 的水合.
研究的目的:
- 为了比较两个不同的乙烯氧化物 (EO) 化技术的经济和环境可行性,用于生产单乙烯甘 (MEG).
- 评估直接水化与通过乙烯碳酸盐 (EC) 作为中间体的间接水化.
- 为了确定大规模MEG合成的首选方法.
主要方法:
- 使用阿斯HYSYS v11软件进行了直接EO水合和通过EC间接水合的工厂规模模拟.
- 模拟基于每年6万MEG的生产能力.
- 进行了比较的经济和环境影响评估.
主要成果:
- 直接水化显示出明显更高的公用事业能源消耗,超过间接水化279兆瓦.
- 来自直接水的公用事业的温室气体 (GHG) 排放量是间接水的三倍.
- 通过EC的间接水化证明了更低的能源需求和减少温室气体足迹.
结论:
- 乙烯氧化物 (EO) 通过乙烯碳酸盐 (EC) 的间接水在经济和环境上优于MEG生产的直接水.
- 间接路线可以大大节省能源消耗,并大大减少温室气体排放.
- 这项研究强调间接水化途径是可持续和成本效益高的MEG制造的首选技术.
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