文献类型：期刊文献

英文题名：Enhancement mechanism of Taylor reactor during CO2 adsorption process by amine solution

作者：Yang, Xiaoyong[1];Ji, Suyang[1];Du, Shilong[1];Zhu, Yong[1];Li, Xinling[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Shanghai Jiao Tong Univ, Coll Smart Energy, Shanghai 200240, Peoples R China

年份：2026

卷号：405

外文期刊名：FUEL

收录：;EI(收录号：20253218947595);WOS:【SCI-EXPANDED(收录号:WOS:001584750600002)】；

基金：This work is supported by National Key Research and Development Program of China (No.2023YFC3008703) and National Natural Science Foundation of China (22308100) .

语种：英文

外文关键词：CO 2 adsorption; Taylor reactor; Amine solution; Enhancement mechanism; Mass transfer coefficient

摘要：In this work, a vertical Taylor reactor is employed to explore the enhancement mechanism for capturing CO2 by amine solution. The influence of amine solution, mixed gas characteristics and dimensionless parameters on CO2 adsorption performance are investigated, within and without the utilization of centrifugal field represented by the Reynolds number in Taylor reactor. The results show that MEA solution has faster absorption rate, larger absorption capacity, and higher total mass transfer coefficient. When MEA concentration increases from 2 wt% to 10 wt%, the absorption capacity can be improved by 3.3 times with a higher rotating Reynolds number, which is attributed to that the rotation of the inner cylinder increases the turbulence intensity. With the increase of amine solution temperature, both CO2 absorption capacity and total mass transfer coefficient increase gradually at first and then decrease, and reach an extreme peek value at about 50 degrees C. Besides, it finds the increase of CO2 concentration in the mixture reduces the removal efficiency, but it improves the driving force of mass transfer, enhances the mass transfer coefficient, and promotes the CO2 absorption. Benefiting from the change in the gas-liquid flow state, the CO2 absorption capacity also basically increases with the improvement of the rotating Reynolds number. In addition, the counter-flow absorption effect is better when the axial Reynolds number is positive. It can be explained that under counter-flow model, the logarithmic mean concentration difference of CO2 is greater, which can cause a greater mass transfer driving force to enhance the adsorption performance.