功能离子液体复合工质降膜法吸收/解吸CO2过程气液两相界面现象及传递强化研究

项目名称： 功能离子液体复合工质降膜法吸收/解吸CO2过程气液两相界面现象及传递强化研究

项目编号： No.51276205

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 能源与动力工程

项目作者： 丁玉栋

作者单位： 重庆大学

项目金额： 79万元

中文摘要： CO2的捕集及资源化利用对节能减排具有重要的作用；而功能离子液体复合工质降膜法捕集电厂烟道气CO2具有独特的优点，是目前最有前途的方法之一。降膜法捕集过程中气液两相界面现象及传递特性对CO2捕集效率和能耗有关键性的影响。本项目针对功能离子液体复合工质降膜法吸收/解吸CO2过程中气液两相界面现象及传递强化开展创新性的研究工作。主要研究冷却或加热条件下CO2气体吸收或解吸过程中功能离子液体复合工质气液两相流动界面现象和热质传递特性，基于非均匀体相界面近场微扰动的功能离子液体复合工质降膜法吸收/解析CO2过程气液两相流传递强化方法及机理；揭示功能离子液体混合工质降膜法吸收/解吸CO2过程气－液两相流动及热质传递耦合控制界面运动的规律；建立基于非均匀体相界面近场微扰动的功能离子液体复合工质降膜法吸收/解析CO2系统气－液两相多场耦合热质传递理论模型，为烟道气CO2高效捕集技术的发展和应用奠定基础。

中文关键词： 离子液体；降膜；二氧化碳；界面现象；传递强化

英文摘要： The capture and utilization of carbon dioxide is very important in saving as well as emission reduction. Using falling film of mixed aqueous solution of task specific ionic liquids and MEA to capture CO2 in power plant flue gas is the most promising approach because of its special advantages. Characteristics of gas-liquid interfacial phenomena and heat and mass transfer in the falling film CO2 absorption/desorption process have crucial influence on capturing efficiency and energy consumption. Hence, aiming to the liquid-gas interface phenomena and transfer enhancement during the falling film CO2 absorption/desorption process, systemically creative researches will be carry out in this project. Main tasks include: experimental investigation of the characteristics of gas-liquid interfacial phenomena and heat and mass transfer in the falling film CO2 absorption/desorption process under the condition of cooling or heating; experimental study of the transfer enhancement in the CO2 capturing process based on the micro perturbation which derived from non-uniform bulk phase field near interface; development of an interface movement theoretical model for the coupled gas-liquid two-phase flow and heat and mass transport; establishment and solving of a theoretical model describing the two-phase, multi-field coupling, heat a

英文关键词： ionic liquid；falling film；carbon dioxide；interface phenomenon；transfer enhancement