| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.56 |
| 발표분야 |
[주제 1] 계산화학 |
| 제목 |
Experimental and Computational Approaches to Evaluate Potential of Hydrophilic and Hydrophobic Ionic Liquids as Methane Hydrate Inhibitors |
| 초록 |
Gas hydrates have been considered as a nuisance in gas and oil industry, because hydrate formation in the transmission pipelines gives rise to serious economic and environmental damages. To prevent this problem, several types of hydrate inhibitors such as methanol and PVCap have been applied. In particular, ionic liquids (ILs) attracted increasing attention due to their unique role as both a thermodynamic hydrate inhibitor (THI) and a kinetic hydrate inhibitor (KHI). In this study, we focused on the hydrophobicity of ILs and examined the inhibition effect of each IL on the kinetics and thermodynamic stability of CH4 hydrates by measuring the onset temperature (Tonset) and hydrate phase equilibria. Expermental results demonstrated that the stronger hydrophilicity an ionic liquid pair had, the better inhibition efficiency it showed. Additionally, it was found that the hydrophobicity of anions had a more significant impact on the hydrate inhibition strength of ILs than that of cations. Furthermore, molecular dynamics (MD) simulation was applied to reveal the inhibition mechanisms of ILs at a molecular level. |
| 저자 |
윤소영1, 이동영1, 고우진1, 김기섭1, 서용원2
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| 소속 |
1UNIST, 2USNIT |
| 키워드 |
열역학분자모사(Thermodynamics) |
| E-Mail |
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| 원문파일 |
초록 보기 |
