Enzyme Based Strategy for Energy Efficient Carbon Capture and Storage

Thermochemical substrates such as MEA were developed for carbon capture and storage (CCS). This process offers high carbon capture capacities, but low energy efficiency due to substrate regeneration. Reversible enzyme reactions are examined in this work for energy-efficient carbon sequestration. Instead of temperature, experiments show that enhanced thermodynamic driving force for carbon conversion can be attained via pH control under ambient conditions. Also by designing multiple enzyme reaction,  it manifests that the carbon capture capacity of biocatalytic reactions, in addition to be energy efficient, can also be ultimately intensified to approach those realized with chemical absorbents.