Inorganic Chemicals Industry >

2023 , Vol. 55 >Issue 5: 1 - 7

DOI: https://doi.org/10.19964/j.issn.1006-4990.2022-0452

Reviews and Special Topics

Research progress of CO2 capture by metal oxides modified by molten salts

  • XU Chunhui ,
  • WANG Feng ,
  • LING Changjian ,
  • WANG Zirui ,
  • TANG Zhongfeng
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  • 1. College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
    2. Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800, China
    3. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China

Received date: 2022-07-26

  Online published: 2023-05-15

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Abstract

CO2 capture technology by metal oxide is an effective method for carbon emission reduction.However，metal oxides in CO2 capture have some problems，such as low adsorption capacity and easy hardening.At present，molten salt modification of metal oxide can effectively solve these problems.The hydrotalcite derived magnesium aluminum oxides，MgO and CaO were studied.The effects of doped molten salts（such as nitrate，nitrite，carbonate，etc.） on the CO2 capture performance of metal oxides were reviewed.The modification mechanism was analyzed and the application progress of CO2 capture by metal oxides was summarized.In the future，more attention should be paid to the design of doped molten salt system，the study of low-cost and highly selective adsorption materials and the study of capture mechanism.At the same time，practical working conditions should be simulated as much as possible in the experiment to provide support for subsequent large-scale industrial applications.

Key words： carbon dioxide; metal oxides; molten salts; adsorption; capture

Cite this article

XU Chunhui , WANG Feng , LING Changjian , WANG Zirui , TANG Zhongfeng . Research progress of CO2 capture by metal oxides modified by molten salts[J]. Inorganic Chemicals Industry, 2023 , 55(5) : 1 -7 . DOI: 10.19964/j.issn.1006-4990.2022-0452

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