TY - JOUR
T1 - Direct Olivine Carbonation
T2 - Optimal Process Design for a Low-Emission and Cost-Efficient Cement Production
AU - Bremen, Andreas M.
AU - Strunge, Till
AU - Ostovari, Hesam
AU - Spütz, Hendrik
AU - Mhamdi, Adel
AU - Renforth, Phil
AU - Van der Spek, Mijndert
AU - Bardow, André
AU - Mitsos, Alexander
N1 - Funding Information:
We thank the Federal Ministry of Education and Research (BMBF) for funding of Project CO2Min (033RO14B).
Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/9/7
Y1 - 2022/9/7
N2 - Employing mineral carbonation products as a cementitious substitute could reduce the cement industry's greenhouse gas (GHG) emissions. However, a transition toward low-emission cement requires financially competitive cement production at standardized product specifications. Aiming to tackle this challenge, we modeled and optimized a direct mineral carbonation process. In detail, we embedded a mechanistic tubular reactor model in a mineral carbonation process and imposed product specifications based on the European cement standard in the optimal design formulation. In the next step, we considered the business case of blended cement consisting of ordinary Portland cement and the mineral carbonation product that could be categorized as CEM II in the European cement standard. We computed the minimum production cost and GHG emissions of the produced blended cement by using Bayesian optimization to find Pareto optimal operating conditions of the mineral carbonation process. Our results showed that the cost of mineral carbonation in the cement industry can be competitive while cutting the GHG emissions by up to 54%.
AB - Employing mineral carbonation products as a cementitious substitute could reduce the cement industry's greenhouse gas (GHG) emissions. However, a transition toward low-emission cement requires financially competitive cement production at standardized product specifications. Aiming to tackle this challenge, we modeled and optimized a direct mineral carbonation process. In detail, we embedded a mechanistic tubular reactor model in a mineral carbonation process and imposed product specifications based on the European cement standard in the optimal design formulation. In the next step, we considered the business case of blended cement consisting of ordinary Portland cement and the mineral carbonation product that could be categorized as CEM II in the European cement standard. We computed the minimum production cost and GHG emissions of the produced blended cement by using Bayesian optimization to find Pareto optimal operating conditions of the mineral carbonation process. Our results showed that the cost of mineral carbonation in the cement industry can be competitive while cutting the GHG emissions by up to 54%.
UR - http://www.scopus.com/inward/record.url?scp=85137278699&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.2c00984
DO - 10.1021/acs.iecr.2c00984
M3 - Article
AN - SCOPUS:85137278699
SN - 0888-5885
VL - 61
SP - 13177
EP - 13190
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 35
ER -