Thermodynamic and Kinetic Promoters for Gas Hydrate Technological Applications
Thermodynamic and Kinetic Promoters for Gas Hydrate Technological Applications
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DOI：
10.1021/acs.energyfuels.1c02786
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发表时间：
2021-11
期刊：
影响因子：
5.3
通讯作者：
Ahmad A. A. Majid-Ahmad-A.-A.-Majid-2024643627;Joshua E. Worley;C. Koh
中科院分区：
文献类型：
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作者：
Ahmad A. A. Majid-Ahmad-A.-A.-Majid-2024643627;Joshua E. Worley;C. Koh
近年来，人们对天然气水合物作为能源（甲烷和氢）储存和运输、分离（天然气和海水淡化）和碳捕获等技术应用的兴趣越来越大。然而，有几个挑战阻碍了这些基于水合物的技术的大规模应用和商业化。主要挑战之一是诱导时间长和水合物颗粒生长缓慢，这会增加这些技术的总体运营成本。据报道，添加剂（称为水合物促进剂）可以帮助提高水合物的成核和生长速率。通常，存在两种类型的水合物促进剂：热力学水合物促进剂和动力学水合物促进剂。热力学水合物促进剂将水合物平衡曲线移动到较温和的条件（即，较低的压力和较高的温度），而动力学水合物促进剂减少水合物形成的诱导时间并增加生长速率。在这篇综述中，我们提供了两种类型的水合物促进剂（热力学和动力学）及其对水合物相平衡，诱导时间和生长速率的影响的全面审查。
: In recent years, there has been growing interest in gas hydrates as technological applications, such as for energy (methane and hydrogen) storage and transportation, separation (gas and desalination), and carbon capture. However, there are several challenges that deter large-scale applications and commercialization of these hydrate-based technologies. One of the main challenges is the long induction time and slow growth of hydrate particles, which can increase the overall operating costs of these technologies. It has been reported that the addition of additives (known as hydrate promoters) can help improve the nucleation and growth rate of hydrates. In general, there are two types of hydrate promoters: thermodynamic hydrate promoters and kinetic hydrate promoters. Thermodynamic hydrate promoters shift the hydrate equilibrium curve to milder conditions (i.e., lower pressures and higher temperatures), while kinetic hydrate promoters reduce the induction time for hydrate formation and increase the growth rate. In this review, we provide a comprehensive review of the two types of hydrate promoters (thermodynamic and kinetic) and their e ff ects on hydrate phase equilibria, induction time, and growth rate.