【摘要】 以甲基丙烯酸缩水甘油酯（GMA）为单体,二乙烯苯（DVB）为交联剂,采用悬浮聚合法制备GMA-DVB共聚物,进一步通过多乙烯多胺与环氧基之间的开环反应,制备固态胺吸附剂。研究了有机胺类型、吸附温度、流速等对CO₂吸附性能的影响。结果表明,当吸附温度为25℃、流速为30m L/min、CO₂浓度为10vol%、有机胺为TEPA时,此固态胺吸附剂对CO₂的吸附量达到1.93mmol/g。经过8次循环再生吸附后,吸附量仍能保持在初始吸附量的97%。同时采用FT-IR、EA、BET、TG等方法对吸附材料进行了表征。研究结果表明,此固态胺吸附材料具有良好的热稳定性,对CO₂具有良好的吸附性能,是一种理想的固态胺吸附剂。更多还原

【Abstract】 A novel solid amine adsorbent was prepared by a suspension polymerization of divinylbenzene（DVB） and glycidyl methacrylate（GMA）, followed by aminating with tetraethylenepentamine（TEPA）. Its potentiality for efficient adsorption of CO₂ from the simulated flue gas component of 10vol% CO₂ in N₂ was evaluated. Various adsorption parameters such as organic amine type, adsorption temperature and flow rate was investigated. The CO₂ adsorption amount reached 1.93mmol/g at 25℃ when the flow rate was 30 m L/min. The regenerability of adsorbent was also studied by performing eight adsorption-desorption cycles over the temperature range of 25℃（adsorption） to 75℃（desorption）. Moreover, the prepared adsorbents were characterized by N₂ adsorption-desorption, FT-IR, EA and TGA. All these results suggested this solid amine adsorbent has a potential for CO₂ recovery at low concentrations.更多还原