Huadian Technology ›› 2021, Vol. 43 ›› Issue (6): 86-91.doi: 10.3969/j.issn.1674-1951.2021.06.011

• Carbon Sequestration and Utilization • Previous Articles    

Research on carbon sequestration path of steel slag carbonation under carbon neutralization background

ZHANG Shufan1(), CHENG Xingxing1(), WANG Luyuan2(), ZHANG Xingyu2(), WANG Zhiqiang1,*()   

  1. 1. School of Energy and Power Engineering,National Engineering Laboratory for Reducing Emissions from Coal Combustion,Engineering Research Center of Environmental Thermal Technology,Ministry of Education,Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization,Shandong University,Jinan 250061,China
    2. School of Energy and Power Engineering,Qilu University of Technology,Jinan 250014,China
  • Received:2021-04-26 Revised:2021-05-18 Online:2021-06-25 Published:2021-06-25
  • Contact: WANG Zhiqiang E-mail:2991529998@qq.com;xcheng@sdu.edu.cn;luyuanwang@qlu.edu.cn;xyzh@qlu.edu.cn;jackywzq@sdu.edu.cn

Abstract:

CO2 capture after combustion is one of the important ways of carbon capture.Carbon sequestration can be achieved by carbonation reaction between alkali metal oxides (CaO-based) in steel slag and CO2.This paper reviews three main methods for carbon sequestration,direct carbon fixation with cold steel slag,indirect carbon fixation with cold steel slag and direct carbon fixation with hot steel slag.After summarizing the methods and pointing out the existing problems,the advantages and disadvantages of the three methods were compared.It is pointed out that the direct carbon fixation with hot steel slag is the most suitable carbon fixation technology with steel slag under the background of carbon peak and carbon neutralization.By realizing carbon sequestration and steel slag waste heat recycling simultaneously,it is one of the most promising carbon fixation technologies.

Key words: carbon fixation by steel slag, carbon capture, cold steel slag direct carbon fixation, cold steel slag indirect carbon fixation, hot steel slag direct carbon fixation, carbon neutralization, carbon peak, carbon sink

CLC Number: