对二甲基碳酸盐生产过程的模拟和多目标优化
Ali Maleki1, Fatemeh Bahadori2
1Faculty of Chemical Engineering, Urmia University of Technology, P.O. Box 57166-17165, Urmia, Iran.
Scientific reports
|October 6, 2023
概括
这项研究通过利用二氧化碳 (CO2) 来优化二甲基碳酸盐 (DMC) 的生产. 过程模拟确定了最佳条件,实现了70%的转换率,为二氧化碳利用提供了实际的战略.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 环境化学环境化学
- 过程优化 过程优化
背景情况:
- 温室气体,特别是二氧化碳 (CO2),由于它们的高吸收性,对全球变暖作出了重大贡献.
- 减少大气中的二氧化碳是一个关键的全球战略,化学品的利用提供了一个实际的方法.
- 二甲基碳酸盐 (DMC) 是一种有价值的化学物质,在二氧化碳利用过程中具有潜在的应用.
研究的目的:
- 调查二氧化碳 (CO2) 在二甲基碳酸盐 (DMC) 生产中的整合.
- 评估关键过程参数对DMC合成的影响.
- 确定最佳运行条件,以最大限度地提高DMC生产和二氧化碳利用率.
主要方法:
- 使用Aspen HYSYS 10进行过程模拟,以模拟DMC生产.
- 评估参数,包括温度,停留时间,料比率和回收比率.
- 使用设计专家12软件进行交互分析和优化.
主要成果:
- 随着温度的上升,DMC的产量增加了.
- 在甲醇/乙烯碳酸盐 (MeOH/EC) 系统中观察到大约8%的最大转化率.
- 延长停留时间增强了温度和MeOH/EC比率的影响,而更高的回收率被证明是有害的.
结论:
- 确定了DMC生产的最佳条件:温度为164.7°C,回收率为0.2,停留时间为139.45分钟,料率为5.9%.
- 这些优化的参数导致了70%的显著转化率.
- 该研究表明,在化学合成中利用二氧化碳是一种可行的方法,有助于减少温室气体排放的战略.
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