一种基于乙二胺-丁二醇体系的新颖的二氧化碳捕集利用方法（英文）

A CO_2 Capture and Utilization Approach Using the System 1,4-Butanediol and 1,2-Ethanediamine

在温和条件下,发展了一种以丁二醇-乙二胺体系新颖、高效地固定CO_2的方法。在此方法中,CO_2被快速激活并转化为一种固态的CO_2储集材料(CO_2SM),通过XPS、XRD、FTIR和^(13)C NMR等技术表征证实为烷基碳酸胺。基于TGA结果 ,CO_2SM的水溶液可以与Ca(OH)_2和Ba(OH)_2反应制备CaCO_3和BaCO_3微粒,还可用于循环吸收和解吸CO_2的过程。此外,丁二醇-乙二胺水溶液在20℃下吸收CO_2并在98.6℃下解吸CO2,没有明显的溶液损失。因此,丁二醇-乙二胺体系提供了一种绿色、高效、低成本的二氧化碳捕集利用方法。

A novel and high effective way to fix CO2 agilely through the system 1,4-butanediol （BDO）＋1,2- ethylenediamine （EDA） under mild condition was developed. In this process, the bubbling CO2 could be activated efficiently and directly converted into a novel solid CO2-storage material （CO2SM）, which was extensively confirmed as an alkylcarbonate salt using XPS, XRD, FTIR and 13C NMR analyses. As a material, the aqueous CO2SM solution could be used to prepare controllable morphologies CaCO3 and BaCO3 micro-particles by reacting with Ca（OH）2 and Ba（OH）2 according to thermogravimetry analysis （TGA） result. Additionally, the aqueous BDO＋ EDA system could be recycled multiple times without any important loss of CO2 capturing and releasing capability at absorption temperature of 20℃ and desorption temperature of 98.6℃. As a result, the combination of BDO＋EDA seems to provide a green CO2 capture and utilization （CCU） approach featuring high efficiency and low cost.