通过使用优化反应蒸系统与预分离来进行转的能源和资本成本降低
Carles Troyano Ferré1, Ruben Cabello1, Alvaro Risco1
1Faculty of Chemistry, Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès Street 1, Sixth Floor, 08028 Barcelona, Spain.
这项研究引入了一种新型的反应蒸与预分离列 (RDPFC) 系统,以有效地从聚乙醇废物中回收甲醇和n-丁酸盐. 与传统方法相比,RDPFC系统可显著降低67%的能源消耗.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 过程优化 过程优化
- 分离技术 分离技术
背景情况:
- 反应蒸是有效的,但在甲基酸盐 (MeAc) 和甲醇 (MeOH) 转化等过程中受到亚热的挑战.
- 价值化含有MeAc和MeOH的聚乙烯酒精行业的废物流对于经济和环境的好处至关重要.
研究的目的:
- 建议和优化使用预分离列 (RDPFC) 系统进行反应蒸.
- 从工业废物流中回收高纯度甲醇 (MeOH) 和n-乙酸 (BuAc).
- 尽量减少拟议过程的年度总成本 (TAC).
主要方法:
- 使用 Aspen Plus 版本 12.1.1. 的流程建模和优化.
- 在真空下整合一个预分离柱 (PFC) 和高压下一个反应柱 (RC).
- 与传统的反应性和提取性蒸 (RED) 工艺进行比较分析.
主要成果:
- 该RDPFC系统实现了MeAc转化率为99.2mol%.
- 产品纯度超过了MeOH的99.85%和BuAc的99.5%的重量.
- 与RED.com相比,观察到能源消耗显著减少67% (2.56 GJ/tBuAc).
结论:
- RDPFC系统为废物流的价值化提供了一个高效和经济可行的解决方案.
- 消除引进器和回收单元有助于大幅节省能源.
- 这项技术为聚乙烯酒精行业提供了一个有前途的方法.
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