Rock ‘n’ use of CO₂: carbon footprint of carbon capture and utilization by mineralization

Abstract

Our LCA-based assessment showed that all considered CCU technologies for mineralization can reduce climate impacts over the entire life cycle due to the permanent storage of CO2 and the credit for substituting conventional products.

How (Carbon) Negative Is Direct Air Capture? Life Cycle Assessment of an Industrial Temperature-Vacuum Swing Adsorption Process

“…13,14 However, DAC not only allows us to remove GHG emissions from our past use of fossil fuels. DAC also enables future fuels with a closed carbon cycle: The captured CO2 could serve as a carbon feedstock for fuels [15][16][17][18][19][20] , and also other value-added products like chemicals [21][22][23][24] and building materials [25][26][27] via carbon capture and utilization (CCU).…”

How (Carbon) Negative Is Direct Air Capture? Life Cycle Assessment of an Industrial Temperature-Vacuum Swing Adsorption Process

“…13,14 However, DAC not only allows us to remove GHG emissions from our past use of fossil fuels. DAC also enables future fuels with a closed carbon cycle: The captured CO2 could serve as a carbon feedstock for fuels [15][16][17][18][19][20] and also other value-added products like chemicals [21][22][23][24] and building materials [25][26][27] via carbon capture and utilization (CCU).…”

CO2 Utilization Technologies in Europe: A Short Review

“…Huang et al [ 148 ] proposed a LCA of CO 2 mineral carbonation‐cured concrete blocks, in a comparative analysis with Portland cement block, showing that up to 30% of CO 2 emission avoidance could be achieved when replacing steam curing in conventional Portland cement block by mineral carbonation curing and adjusting the binder type. Ostovari et al [ 149 ] recently showed that in an ideal case, the mineralization of 1 ton CO 2 could avoid more than three times more GHG emissions than merely storing 1 ton of CO 2 . They analyzed several pathways, considering serpentine, olivine, and steel slag as feedstock.…”