Effects of additive mixtures (THF/SDS) on carbon dioxide hydrate formation and dissociation in porous media

▸ CO2 hydrate formation and dissociation were measured with mixture additives. ▸ 1000 mg/L SDS is a potential choice for hydrate-based CO2 capture. ▸ 3 mol% THF results in a dramatic decrease of CO2 hydrate equilibrium pressure. ▸ An improved model was developed to predict CO2 hydrate equilibrium conditions.