| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 | 21권 2호, p.1946 |
| 발표분야 | 열역학 |
| 제목 | Phase Equilibria of CH4 and CO2 Hydrates Formed from Aqueous Solutions of Glutaric Acid and Malonic Acid |
| 초록 | The equilibrium boundaries of CH4 and CO2 hydrates were examined in the presence of di-carboxylic acids, glutaric acid and malonic, at a mass fraction of 0.1 and 0.01. Including di-carboxylic acids in the water phase shifted the phase boundaries to higher pressure and lower temperature conditions, which we attributed to the formation of hydrogen bonding between the inhibitors and water molecules rather than to the formation of water structures serving as hydrate precursors. In addition, the inhibition effect of shorter carbon-chained malonic acid was better than that of longer-chained glutaric acid due to its low molecular weight. This inhibition effect was compared with that of conventional thermodynamic hydrate inhibitors (THIs) used in commercial processes. The comparison showed that the effect of malonic acid was close to that of tri-ethylene glycol for inhibiting the CH4 hydrate. 주) 본 연구는 2015년 한국교통대학교 지원을 받아 수행하였음. |
| 저자 | 김기섭, 하치현 |
| 소속 | 한국교통대 |
| 키워드 | Di-carboxylic acid; Gas hydrate; Phase equilibrium; Flow assurance |
| 원문파일 | 초록 보기 |
