化工进展 ›› 2022, Vol. 41 ›› Issue (S1): 536-544.DOI: 10.16085/j.issn.1000-6613.2022-0890

• 资源与环境化工 • 上一篇    下一篇

胺功能化介孔二氧化硅捕集CO2的研究进展

王一茹1,2(), 宋小三1,2(), 水博阳1,2, 王三反1,2   

  1. 1.兰州交通大学环境与市政工程学院,甘肃 兰州 730070
    2.寒旱地区水资源综合利用教育部工程中心,甘肃 兰州 730070
  • 收稿日期:2022-05-13 修回日期:2022-06-29 出版日期:2022-10-20 发布日期:2022-11-10
  • 通讯作者: 宋小三
  • 作者简介:王一茹(1998—),女,硕士研究生,研究方向为二氧化碳的吸附与转化。E-mail:1271625818@qq.com
  • 基金资助:
    甘肃省科技计划(20JR10RA228);甘肃省高等学校科研项目(2020A-040)

Progress in amine-functionalized mesoporous silica for CO2 capture

WANG Yiru1,2(), SONG Xiaosan1,2(), SHUI Boyang1,2, WANG Sanfan1,2   

  1. 1.School of Environment and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 733070, Gansu, China
    2.Enginnering Center of Water Resource Comprehensive Utilization, Ministry of Education, Lanzhou 730070, Gansu, China
  • Received:2022-05-13 Revised:2022-06-29 Online:2022-10-20 Published:2022-11-10
  • Contact: SONG Xiaosan

摘要:

胺功能化介孔二氧化硅因其高选择性、高吸附容量、快速的吸附动力学、良好的再生性能和循环稳定性受到广泛关注,在二氧化碳捕集技术中具有优良的应用前景。本文比较了胺改性的M41S、SBA-n、KIT-n、介孔二氧化硅泡沫、介孔二氧化硅纳米球和六方介孔二氧化硅的吸附性能,总结了MCM-41和SBA-15的结构特点。介绍了胺化合物的负载方式——湿法浸渍、化学接枝和原位聚合的胺负载原理。分析了硅源、载体内部性质、气体选择性和不同添加剂对胺功能化介孔二氧化硅材料吸附二氧化碳能力的影响。最后,点明了吸附剂未来的发展目标,对胺功能化介孔二氧化硅材料的研究方向进行了展望。指出未来可关注介孔二氧化硅微观结构和温度对胺与二氧化碳相互作用的影响,增强胺功能化介孔二氧化硅的稳定性,推进其在实际环境下的应用。

关键词: 二氧化碳捕集, 二氧化硅, 吸附(作用), 脱附, 吸附剂

Abstract:

As to its high selectivity, high adsorption capacity, fast adsorption kinetics, good regeneration performance and cycling stability, amine-functionalized mesoporous has received much attention and has excellent prospects for application in CO2 capture technology. In this paper, the adsorption capacity of mesoporous silica M41S, SBA-n, FDU-n, KIT-n, MCF, MSN and HMS was compared, and the structural characteristics of MCM-41 and SBA-15 are summarized. The principles of physical impregnation, covalent tethering via silane linkage and direct covalent tethering via in-situ polymerization for amine loading are presented. The effects of differences in silica source, internal material properties, other gases and additives on the adsorption capacity are analyzed. In conclusion, the future development goals of adsorbents were clarified and an outlook on the research direction of amine-functionalized mesoporous silica materials is provided. It is noted that future attention can be paid to the effect of mesoporous silica microstructure and temperature on the interaction between amine and CO2 to enhance the stability of amine-functionalized mesoporous silica to promote its application in practical environments.

Key words: CO2 capture, silica, adsorption, desorption, adsorbents

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