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제안 방법
- The presence of a cage-dependent chemical shift for enclathrated guest molecule suggests that 13C NMR should provide a direct, nondestructive technique for the determination of gas hydrate stmcture and other microscopic properties. In this contribution, we present results obtained with CP/MAS 13C NMR techniques on structure I hydrate and conf i rm that the cage-dependent 13C chemical shift of enclathrated methane can be used to determine the hydrate structure. Quantitative determination of the gas distribution over the different cages was then used to determine the hydration number of methane hydrate.
- The experimental apparatus was designed to measure the volumetric consumption rate of hydrate-forming gas during hydrate formation. A schematic diagram of the experimental apparatus was shown in Figure 1.
대상 데이터
- It consists of largely three parts: a semi-batch stirred tank reactor with a temperature and pressure control system, measurement system, and a data acquisition system. Cylindrical type reactor of which internal volume was about 150 cm3 was made of 316 stainless steel with two sight glasses equipped at the bottom and the side of the reactor. Sight glasses provided visual observation of the state of contents during hydrate formation inside the reactor.
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