水蒸汽对钾基吸附剂CO2吸附机理影响研究

项目名称： 水蒸汽对钾基吸附剂CO2吸附机理影响研究

项目编号： No.21306217

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 化学工业

项目作者： 李磊

作者单位： 中国科学院山西煤炭化学研究所

项目金额： 24万元

中文摘要： CO2捕获、封存及利用技术被认为是短期之内应对气候变化的重要技术手段之一。由于碱金属固体吸附剂具有原料成本低、循环利用效率高、对设备无腐蚀等优点而被视为是一种具有应用前景的CO2吸附剂。但反应气氛下水蒸汽对吸附剂CO2吸附机理的影响研究仍处于初步探索阶段。本课题拟从吸附机理研究角度出发，具体研究水蒸汽条件下K基吸附剂表面活性组分生成的动态行为（生成、变化）和静态性质（形貌、位置、性质），明确活性组分与CO2的作用机理，进而揭示水蒸汽气氛下吸附剂CO2吸附的内在原因，获取促进吸附CO2所需的吸附剂形貌和反应条件要素，以指导吸附剂的设计和操作窗口的选择，进一步增强实际过程的稳定性。

中文关键词： 烟道气；固体吸附剂；水蒸汽；吸附机理；CO2捕获

英文摘要： The technology of CO2 capture, storage and utilization (CCSU) was proposed as one of short-term goal for CO2 mitigation. CO2 chemical adsorption using alkali metal-based sorbents had attracted much attention due to the low cost of raw materials and non-corrosion property. However, the effect of steam on CO2 adsorption mechanism over the sorbent is still in the preliminary stage of exploration.Thus,the present project started with the nature of adsorption mechanism itself, including the investigation of dynamic behavior (formation, conversion) and static properties (morphology, location and characters) of the active components. The adsorption mechanism between active components and CO2 will be investigated to reveal the intrinsic reasons of adsorption CO2 in the steam atmosphere.Furthermore,to optimize the morphology structure of the sorbent and reaction conditions of adsorption CO2 required.Based on the above, the design of sorbent and operation window will be optimized, and make the CO2 capture process more stable.

英文关键词： Flue gases；Solid sorbent；Steam；Adsorption mechanism；CO2 capture