从空气中捕获并转化为甲醇的基于氧化碳的综合CO2
Raktim Sen1, Alain Goeppert1, Sayan Kar1
1Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, University Park, Los Angeles, California 90089-1661, United States.
Journal of the American Chemical Society
|February 13, 2020
概括
氧化物系统有效地捕获二氧化碳 (CO2) 并使用乙烯糖醇溶液和催化剂将其转化为甲醇. 这种新方法为直接捕获空气和生产甲醇提供了稳定,可扩展的替代方案.
科学领域:
- 化学工程
- 催化剂
- 碳捕获和利用
背景情况:
- 传统的基于氨基的二氧化碳 (CO2) 捕获系统在稳定性和可扩展性方面面临挑战.
- 开发有效的方法将二氧化碳转化为甲醇等有价值产品对于可持续的化学过程至关重要.
研究的目的:
- 建立第一个以氧化物为基础的系统,同时捕获二氧化碳并转化为甲醇.
- 研究这种新工艺的效率和可扩展性,包括基层再生和直接捕获空气.
主要方法:
- 使用氧化的乙烯基醇溶液捕获二氧化碳.
- 使用四 (Ru-PNP) 催化剂将捕获的二氧化碳 (如二碳酸盐和酸盐) 化为甲醇 (CH3OH).
- 在温和的温度 (100-140°C) 下运行集成的单系统,然后通过蒸分离甲醇.
主要成果:
- 在酸碳酸盐和酸盐化中获得高产量.
- 从环境空气中有效捕获二氧化碳,并随后化为甲醇.
- 首次观察到氧化基的低温再生,表明该过程的可持续性.
结论:
- 基于氧化物的系统,由于其高捕获效率和稳定性,为直接捕获空气和转化甲醇提供了优越的替代品.
- 开发的单系统可用于碳捕获和利用的工业应用.
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