碳酸丙烯酯
环氧丙烷
溶剂
化学
胺气处理
选择性
碳酸盐
环加成
二氧化碳
有机化学
催化作用
聚合物
环氧乙烷
电极
物理化学
共聚物
电化学
作者
Jared O. Kroll,Jotheeswari Kothandaraman,Katarzyna Grubel,David J. Heldebrant
出处
期刊:Energy & Fuels
[American Chemical Society]
日期:2024-04-16
卷期号:38 (9): 7959-7965
被引量:6
标识
DOI:10.1021/acs.energyfuels.3c04993
摘要
An integrated CO2 capture and conversion to materials (IC3 M) implementation utilizing a CO2 capture solvent is an efficient approach to reduce the amount of CO2 in the atmosphere while producing value-added chemicals. Herein, we demonstrate that the advanced water-lean CO2 capture solvent, N-(2-Ethoxyethyl)-3-morpholinopropan-1-amine (EEMPA), can catalyze the cycloaddition reaction between CO2 and propylene oxide to produce the value-added chemical propylene carbonate in an IC3 M fashion. When excess propylene oxide is used relative to EEMPA, yields as high as 75% with 85% selectivity toward propylene carbonate can be achieved under solvent-free conditions without the need of additives/cocatalysts. The reaction temperature (120 °C) is comparable to that used in the thermal regeneration of the capture solvent under industrial conditions. Formation of an undesired amino alcohol side product was observed, but it may be reversible or avoidable with continued research despite the unsuccessful initial attempts. Lastly, we show that this can be applied to other epoxides for the production of various cyclic carbonates.
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