화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 포스터-환경·에너지
제목 Improvement of gas hydrate based CO2 separation using chemical additives
초록 CO2 is a representative greenhouse gas causing global warming effects, and its emission is continuously increasing due to the use of fossil fuels. Several technologies including absorption, adsorption, and membrane separation can be applied to CO2 separation, but these methods are economically inefficient as they require a large amount of energy to operate.
Gas hydrate is a crystalline compound in which gas molecules are captured in a lattice structure of water molecules connected by hydrogen bonds. The structures of gas hydrate are sI, sII, and sH. Thermodynamic conditions required to form hydrates change with the gas species/compositions, and thus CO2 can be selectively separated from the gas mixtures. For such a process, chemical additives are often used to promote gas hydrate formation. In this study, L-methionine, L-tryptophan known as amino acids and sodium dodecyl sulfate were used to promote CO2 hydrate formation. And the optimal concentration of additives will be discussed.
저자 김세영, 조상규, 김광범, 사정훈
소속 동아대
키워드 Seperation process; Gas hydrate; Carbon Capture and Storage (CCS)
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