Research progress of CO_(2) capture and mineralization based on natural minerals  

作　　者：Chenguang Qian Chunquan Li Peng Huang Jialin Liang Xin Zhang Jifa Wang Jianbing Wang Zhiming Sun 

机构地区：[1]School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China [2]Shanghai Construction Building Material Technology Group,Shanghai 200080,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2024年第6期1208-1227,共20页矿物冶金与材料学报（英文版）

基　　金：supported by the Beijing Natural Science Foundation,China(No.2242055).

摘　　要：Natural minerals,such as kaolinite,halloysite,montmorillonite,attapulgite,bentonite,sepiolite,forsterite,and wollastonite,have considerable potential for use in CO_(2) capture and mineralization due to their abundant reserves,low cost,excellent mechanical prop-erties,and chemical stability.Over the past decades,various methods,such as those involving heat,acid,alkali,organic amine,amino sil-ane,and ionic liquid,have been employed to enhance the CO_(2) capture performance of natural minerals to attain high specific surface area,a large number of pore structures,and rich active sites.Future research on CO_(2) capture by natural minerals will focus on the full utiliza-tion of the properties of natural minerals,adoption of suitable modification methods,and preparation of composite materials with high specific surface area and rich active sites.In addition,we provide a summary of the principle and technical route of direct and indirect mineralization of CO_(2) by natural minerals.This process uses minerals with high calcium and magnesium contents,such as forsterite(Mg_(2)SiO_(4)),serpentine[Mg_(3)Si_(2)O(OH)_(4)],and wollastonite(CaSiO_(3)).The research status of indirect mineralization of CO_(2) using hydro-chloric acid,acetic acid,molten salt,and ammonium salt as media is also introduced in detail.The recovery of additives and high-value-added products during the mineralization process to increase economic benefits is another focus of future research on CO_(2) mineralization by natural minerals.

关 键 词：natural mineral carbon dioxide capture MODIFICATION composite material carbon dioxide mineralization 

分 类 号：TD985[矿业工程—选矿] X701[环境科学与工程—环境工程]