Cite this article: Pan, S.Y., Chiang, A., Chang, E.E., Lin, Y.P., Kim, H. and Chiang, P.C. (2015). An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review.
Aerosol Air Qual. Res.
15: 1072-1091. https://doi.org/10.4209/aaqr.2014.10.0240
Challenging barriers and significant breakthroughs of CCUM process were reviewed.
Performance of CCUM processes with different types of alkaline wastes was evaluated.
Process intensification concepts such as novel reactor integration were discussed.
Utilizations of carbonated products as green materials such as cement were reviewed.
CCUM demonstration projects were illustrated associated with its energy consumption.
Carbon dioxide (CO2) emission reduction in industry should be a portfolio option; for example, the carbon capture and utilization by mineralization (CCUM) process is a feasible and proven technology where both CO2 capture and alkaline waste treatment occur simultaneously through an integrated approach. In this study, the challengeable barriers and significant breakthroughs of CCUM via ex-situ carbonation were reviewed from both theoretical and practical perspectives. Recent progress on the performance of various carbonation processes for different types of alkaline solid wastes was also evaluated based on CO2 capture capacity and carbonation efficiency. Moreover, several process intensification concepts such as reactor integration and co-utilization with wastewater or brine solution were reviewed and summarized. In addition, the utilization of carbonated products from CCUM as green materials including cement, aggregate and precipitate calcium carbonate were investigated. Furthermore, the current status of worldwide CCUM demonstration projects within the iron- and steelmaking industries was illustrated. The energy consumption and cost analyses of CCUM were also evaluated.
Keywords: CO2 capture; Accelerated carbonation; Green cement; Cost evaluation; Energy consumption