SGER: Measuring Gas Hydrate Phase Composition with Raman Spectroscopy

摘要CTS-9527420 E.科罗拉多矿业学院 提出了一个新的国家的最先进的水合物实验，通过演示水合物相结构和组成的测量，使用拉曼光谱。 这项工作将产生两大影响： 1.水合物的结构实际上从来没有被测量过，而是被预测过。 有多个实例表明预测的水合物结构不正确。 对于至少三种常见的水合物结构，预测不正确的结构（和相关的形成条件）比通常认识到的更频繁。 我们打算提出的工作，以证明如何可以纠正这个问题。 2.水合物相组成（客体-主体比和客体-客体组成两者）也被预测而不是测量。 然而，这样的测量是必要的，以纠正现有的热力学模型，因为水合物的形成条件不仅取决于结构，而且相组成。

ABSTRACT CTS-9527420 E. Dendy Sloan Colorado School of Mines A new state-of-the-art for hydrate experiments is proposed by demonstrating measurements of the hydrate phase structure and composition, using Raman spectroscopy. The work will have two major impacts: 1. The hydrate structure is virtually never measured but predicted. There are multiple instances in which the incorrect hydrate structure has been predicted. With at least three common hydrate structures, the incorrect structure (and associated formation conditions) is predicted more frequently than commonly realized. We intend the proposed work to demonstrate how this problem may be corrected. 2. The hydrate phase composition (both the guest-to-host ratio and guest-to-guest composition) is also predicted rather than measured. However, such measurements are necessary to correct the existing thermodynamic model since hydrate formation conditions depend not only on structure but also on the phase composition.