SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 46 ›› Issue (6): 207-213.DOI: 10.1016/j.cjche.2021.10.011

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Fabrication of nickel oxide functionalized zeolite USY composite as a promising adsorbent for CO2 capture

Jipeng Dong1, Fei Wang1, Guanghui Chen1, Shougui Wang2, Cailin Ji1, Fei Gao1   

  1. 1 Shandong Key Laboratory of Multiphase Fluid Reaction and Separation Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2 Department of Chemical Engineering, Qingdao University of Science and Technology, Gaomi 261500, China
  • Received:2021-07-06 Revised:2021-10-24 Online:2022-07-20 Published:2022-06-28
  • Contact: Fei Gao,E-mail:feigao@tju.edu.cn
  • Supported by:
    This work was funded by the Qingdao Science and Technology Plan Application Foundation Research Project (19-6-2-28-cg).

Fabrication of nickel oxide functionalized zeolite USY composite as a promising adsorbent for CO2 capture

Jipeng Dong1, Fei Wang1, Guanghui Chen1, Shougui Wang2, Cailin Ji1, Fei Gao1   

  1. 1 Shandong Key Laboratory of Multiphase Fluid Reaction and Separation Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2 Department of Chemical Engineering, Qingdao University of Science and Technology, Gaomi 261500, China
  • 通讯作者: Fei Gao,E-mail:feigao@tju.edu.cn
  • 基金资助:
    This work was funded by the Qingdao Science and Technology Plan Application Foundation Research Project (19-6-2-28-cg).

Abstract: Adsorption process is considered to be the most promising alternative for the CO2 capture to the traditional energy-intensive amine absorption process, and the development of feasible and efficient CO2 adsorbents is still a challenge. In this work, the NiO@USY (ultrastable Y) composites with different NiO loadings were prepared for the CO2 adsorption using Ni(NO3)2 as the precursor. The composites were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, nitrogen adsorption–desorption test, scanning electron microscopy analysis, and thermogravimetric analysis, and were evaluated for the CO2 adsorption capacity, CO2/N2 adsorption selectivity and CO2 cycle adsorption capacity. The characterization results show that after the activation at 423 K, the Ni(NO3)2 species were well dispersed into the surface of zeolite USY, and after the further activation at 823 K, Ni(NO3)2 could be converted into highly dispersed NiO. The adsorption results show that the presence of the active component NiO plays an important role in improving the CO2 adsorption performance, and the NiO@USY composite with a NiO loading of 1.5 mmol·g-1 USY support displays a high adsorption capacity and adsorption selectivity for CO2, and shows a good cycle stability. In addition, the Clausius–Clapeyron equation was used to evaluate the isosteric heat of adsorption of CO2 on the NiO(1.5)@USY composite, and the heat of adsorption was 17.39–38.34 kJ·mol-1.

Key words: NiO@USY composites, Carbon dioxide, Adsorption, Separation, Adsorption selectivity

摘要: Adsorption process is considered to be the most promising alternative for the CO2 capture to the traditional energy-intensive amine absorption process, and the development of feasible and efficient CO2 adsorbents is still a challenge. In this work, the NiO@USY (ultrastable Y) composites with different NiO loadings were prepared for the CO2 adsorption using Ni(NO3)2 as the precursor. The composites were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, nitrogen adsorption–desorption test, scanning electron microscopy analysis, and thermogravimetric analysis, and were evaluated for the CO2 adsorption capacity, CO2/N2 adsorption selectivity and CO2 cycle adsorption capacity. The characterization results show that after the activation at 423 K, the Ni(NO3)2 species were well dispersed into the surface of zeolite USY, and after the further activation at 823 K, Ni(NO3)2 could be converted into highly dispersed NiO. The adsorption results show that the presence of the active component NiO plays an important role in improving the CO2 adsorption performance, and the NiO@USY composite with a NiO loading of 1.5 mmol·g-1 USY support displays a high adsorption capacity and adsorption selectivity for CO2, and shows a good cycle stability. In addition, the Clausius–Clapeyron equation was used to evaluate the isosteric heat of adsorption of CO2 on the NiO(1.5)@USY composite, and the heat of adsorption was 17.39–38.34 kJ·mol-1.

关键词: NiO@USY composites, Carbon dioxide, Adsorption, Separation, Adsorption selectivity