화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.1968
발표분야 에너지
제목 Spectroscopic Observation of Metastable Structure Formation in Gas Hydrate System
초록 Clathrate hydrates have been steadily receiving much attention because of their various applications such as natural gas hydrate production, energy gas storage, carbon capture and sequestration, and synthesis and fabrication of versatile energy devices. The sH hydrate is important in the oil industry because its large cage(51268) can accommodate larger molecules found in crude oil regions that cannot occupy the large cages of sI (51262) and sII (51264). However, there is only limited research of sH hydrate, contrary to sI and sII. The major difficulties of understanding of sH hydrate are that 1) sH can be formed only in the presence of large guest molecules (LGMs) and 2) most of the LGMs are insoluble or sparingly soluble in water. Also, there have been no reports on sI-sII-sH whole-phase behavior. The aforementioned barriers can be overcome by exploiting hydrophilic LGMs such as hexamethyleneimine(HMI). These highly water-soluble LGMs can create a homogeneous solution, which guarantees uniform hydrate phases. Therefore, the kinetic bahavior of gas hydrate phases can be compared using HMI at a laboratory scale.
저자 노혜윤1, 신웅철2, 박성민2, 고동연2, 설지웅2, 이 흔2
소속 1KAIST, 2KAIST 생명화학공학과
키워드 Hydrate; Metastable Structure
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