Shaping techniques of adsorbents and their applications in gas separation: a review

被引:26
作者
Wu, Junye [1 ]
Zhu, Xuancan [1 ]
Yang, Fan [1 ]
Wang, Ruzhu [1 ]
Ge, Tianshu [1 ]
机构
[1] Shanghai Jiao Tong Univ, Res Ctr Solar Power & Refrigerat, Inst Refrigerat & Cryogen, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
HOLLOW-FIBER SORBENTS; METAL-ORGANIC FRAMEWORKS; ELECTRIC SWING ADSORPTION; CO2; CAPTURE; COMPOSITE MONOLITHS; ACTIVATED CARBON; HONEYCOMB MONOLITHS; HEAT-EXCHANGERS; PARTICLE-SIZE; POLYETHYLENEIMINE PEI;
D O I
10.1039/d2ta04352a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
To facilitate the large-scale deployment of the adsorption-based gas separation technique, the integration of adsorbents derived from laboratories with gas-solid contactors in the industrial system should be considered. Compared to the conventional method to pack the adsorbent powder into the reaction bed, the strategies of shaping materials into structured adsorbents and utilizing gas-solid contactors with advanced architectures present improved efficiency and attract increasing attention. The reduced gas flow pressure drop and the increased thermal and mass transfer performance contribute to cutting down the operation energy consumption. To this end, this paper reviews the recent advances in the shaping process for adsorbents. First, the alternative geometric forms of structured adsorbents are introduced, and key metrics for structured adsorbent evaluation are summarized. Then, the effects of textural and geometric properties are discussed. Next, the typical steps and characteristics of the main techniques for adsorbent shaping are elaborated. The gas separation performance of structured adsorbents is compared. Further, from a practical point of view, the routes to integrate these structured adsorbents into suitable gas-solid contactors, as well as the corresponding cyclic processes and operation strategies, are discussed briefly. It is concluded that shaping techniques should be appropriately adopted according to the adsorbent properties, and the structure of the adsorbent should be designed according to the application requirements. This paper can serve as a reference for structured adsorbent design and promote the development of the adsorption-based gas separation technique.
引用
收藏
页码:22853 / 22895
页数:44
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