化工进展 ›› 2023, Vol. 42 ›› Issue (3): 1572-1582.DOI: 10.16085/j.issn.1000-6613.2022-0813

• 资源与环境化工 • 上一篇    下一篇

碱性工业固废矿化封存二氧化碳研究进展

王秋华(), 吴嘉帅, 张卫风()   

  1. 华东交通大学土木建筑学院,江西 南昌 330013
  • 收稿日期:2022-05-05 修回日期:2022-07-11 出版日期:2023-03-15 发布日期:2023-04-10
  • 通讯作者: 张卫风
  • 作者简介:王秋华(1977—),女,博士,讲师,研究方向为给水管网水质监测、温室气体CO2减排。E-mail:58773299@qq.com
  • 基金资助:
    江西省研究生创新专项(YC2021-S444)

Research progress of alkaline industrial solid wastes mineralization for carbon dioxide sequestration

WANG Qiuhua(), WU Jiashuai, ZHANG Weifeng()   

  1. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, Jiangxi, China
  • Received:2022-05-05 Revised:2022-07-11 Online:2023-03-15 Published:2023-04-10
  • Contact: ZHANG Weifeng

摘要:

温室效应引起的全球变暖已经影响到人类的生存和发展,CO2减排刻不容缓。CO2矿物碳酸化作为一种CO2减排技术,受到越来越多的关注。相对于传统天然矿化原料,碱性工业固废具有反应速率快、碳酸化效率更高、能耗低等特点,并且利用碱性工业固废进行CO2矿化还可以产出高附加值产物用于化工、建筑等领域。本文主要综述了碱性工业固废的矿化机理,利用碱性工业固废(粉煤灰、钢渣、电石渣)进行CO2碳酸化的研究进展及吸收-矿化一体化(IAM)技术。对于以碱性工业固废为原料的碳酸化技术,未来应进一步加强机理和生命周期影响评价的研究并优化工艺流程;针对IAM工艺今后应开发出高效、经济的吸收剂和封存能力更好的矿化原料,并加强对IAM工艺反应机理的研究。

关键词: 二氧化碳, 碱性工业固体废物, 直接碳酸化, 间接碳酸化, 吸收-矿化一体化技术

Abstract:

The global warming caused by the greenhouse effect has affected the survival and development of human beings, and it is urgent to mitigate CO2. CO2 mineral carbonation is receiving more and more attention as a CO2 reduction technology. Alkaline industrial solid waste for CO2 carbonation has faster reaction rate, higher carbonation rate and lower energy consumption than traditional natural mineralized raw materials, and can also produce high value-added products for chemical and construction applications. This paper reviewed the carbonation mechanism of alkaline industrial solid wastes, the progress of CO2 mineral carbonation using alkaline industrial solid wastes (fly ash, steel slag, calcium carbide slag) and the integrated absorption-mineralization (IAM) technology. Using alkaline industrial solid waste as feedstock, the carbonation technology mechanism and life cycle impact assessment should be further studied and the process should be optimized in the future. Highly efficient, economical absorbents and mineral raw materials with better mineralization capacity should be developed for the IAM process in the future and the reaction mechanism of the IAM process should be studied.

Key words: carbon dioxide, alkaline industrial solid waste, direct carbonation, indirect carbonation, integrated absorption mineralization

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