Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (1): 268.doi: 10.7503/cjcu20200458

Special Issue: 分子筛功能材料 2021年,42卷,第1期

• Review • Previous Articles     Next Articles

Small Molecule Adsorption and Separation on Zeolites

LIU Shanshan1, CHAI Yuchao1, GUAN Naijia1,2, LI Landong1,2()   

  1. 1.School of Materials Science and Engineering & National Institute for Advanced Materials,Nankai University,Tianjin 300350,China
    2.Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education,Nankai University,Tianjin 300071,China
  • Received:2020-07-16 Online:2021-01-10 Published:2021-01-12
  • Contact: LI Landong E-mail:lild@nankai.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21722303);the Municipal Natural Science Foundation of Tianjin, China(18JCJQJC47400);the National Postdoctoral Program for Innovative Talent, China(BX20200171)

Abstract:

Adsorptive separation, the process of separating and purifying a gas mixture via the selective adsorption of one or more components on a porous solid adsorbent, is of great significance in industry. Zeolites, metal-organic framework materials and activated carbon are known as common solid adsorbents. Zeolites show significant advantages such as high specific surface area, high stability and low production cost to satisfy the requirements of highly efficient, energy-saving and environmentally friendly adsorptive separation processes. Therefore, zeolites have been established as most promising adsorbents for the separation of small molecules. In this review article, the existing materials, the fundamental mechanisms and the evaluation methods in adsorptive separation are firstly outlined. The applications of zeolites in air separation, hydrocarbon separation, carbon dioxide capture, aromatic sulfide removal, carbon monoxide adsorption, nitrogen oxides adsorption, hydrogen storage and hydrogen isotope separation are then summarized. Finally, the current status of small molecule separation based on zeolite membranes are briefly discussed. The relationship between the adsorption performance and the topology, framework composition, and modification methods of zeolites are focused, and the future research prospects are discussed on the basis of current achievements.

Key words: Zeolite, Adsorption, Separation

CLC Number: 

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