(376bt) Techno-Economic Analysis of Deep Eutectic Solvent Based so2-CO2 Co-Capture Process for Flue Gas
Deep eutectic solvents (DES) are environmentally friendly and relatively less expansive solvent than ionic liquids and amine-based solvents. DESs are eutectic mixtures of salts or complexing agents with a certain stoichiometric ratio. Wide range of metal salts, metal oxides, and hydrogen-bond donors (HBD) can be the salts or complexing agents to form DES. Despite being a relatively newer technology, the wide applications of DES including CO2 adsorption makes it very attractive separation technologies. However, the applicability of DES in CO2-SO2 co-sequestration has never been explored before.
In this project, experimentally and computationally determined parameters were evaluated and were incorporated into a full-scale techno-economic analysis for flue gas treatment. This evaluation includes several different solvents with sensitivity analysis and comparison to an NETL baseline capture process for a 550 MW coal fired power plant.