离子液体溶剂法捕集分离二氧化碳基础研究

项目名称： 离子液体溶剂法捕集分离二氧化碳基础研究

项目编号： No.51274183

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 矿业工程

项目作者： 张香平

作者单位： 中国科学院过程工程研究所

项目金额： 80万元

中文摘要： 开发低能耗高效CO2捕集技术是当前解决温室效应的重要途径。本项目以离子液体为关键介质，针对当前离子液体法捕集CO2存的吸收能力低、高粘度、系统设计不完善等技术难题，围绕离子液体结构设计、多元吸收体系热力学相平衡、全流程模拟开展研究，采用模拟计算与实验表征结合的方法，获得离子液体阴阳离子结构、溶剂团簇结构、氢键以及微量杂质对CO2捕集分离过程的影响规律，设计合成多胺基、醚基、腈基新型结构离子液体；研究复配溶剂对体系的物理化学性质及吸收-解吸效果的影响规律，建立基于分子参数的热力学机理模型。通过流程模拟，开展全系统物耗和能耗分布分析，提出适用于新工艺流程的概念设计和优化策略，形成离子液体法吸收CO2的技术、经济及环境影响的可行性分析报告。

中文关键词： 离子液体；碳捕集；热力学；流程模拟与评价；

英文摘要： Developing lower energy consumption CO2 capture process is one of the feasible routes to resolve the global warming problem. In recent years, capturing CO2 with ionic liquids (ILs) is regarded as one of the effective methods to decrease the energy consumption and reduce the loss of solvent. However, the challenge for this new technology is the lower CO2 capacity, higher viscosity and lack of knowledge on process integration and design, as well as its environmental impacts. Focusing on the key issues of the structure-property of ionic liquids, multi-component thermodynamics and process simulation of the capture system, this project will investigate the influence mechanisms of structure of ILs, cluster, hydrogen bond and impurities on the absorption performance with simulation and experimental characteristics. Based on the obtained mechanism, new task-specific ionic liquids, such as multi-amine ILs, aether ILs, cyano-group ILs etc., will be designed and synthesized. The influences of additives on the performance of the solvent will be studied too. The phase equilibrium thermodynamic model of multi-component will be established based on the molecular parameters and the whole absorption and striping process will be simulated. Depending on the simulation results, the energy and solvent consumption of the capture proc

英文关键词： Ionic liquids；Carbon capture；Thermodynamic；Process simulation and assessment；