Enhancement of CO2 capture through hydrate formation: the effect of tetrahydrofuran (THF) and tertiary amine solutions

Global climate change and global warming due to elevated CO2 atmospheric concentrations have become a major concern. For this reason, the separation capture of from industrial effluence is an important research focus. The CO2-based hydrate formation process has received close attention in field carbon its efficiency selectively separating pre- post-combustion gas mixtures. In work, set experiments was conducted presence two tertiary amines, triisopropanolamine (TIPA) or triethanolamine (TEA) combined with THF evaluate their effectiveness selectivity during decreasing operational pressure required for process. These were aimed at observing whether amines supports/depresses formation. addition, they also comparing carbon-selective systems without through It observed that TEA discouraged However, addition TIPA 3.5 MPa improved initial loading as well selective mixture. This contributed increase 65% When same experiment carried out lower 1.5 MPa, increased. induction time be considerably longer compared previous case.