Methane storage scale-up using hydrates & metal organic framework HKUST-1 in a packed column
Methane storage scale-up using hydrates & metal organic framework HKUST-1 in a packed column
复制标题
使用水合物扩大甲烷储存规模
DOI：
10.1016/j.fuel.2022.124920
复制
发表时间：
2022
期刊：
影响因子：
7.4
通讯作者：
Koh, Carolyn A.
中科院分区：
文献类型：
--
作者：
Denning, Shurraya;Majid, Ahmad A.A.;Crawford, James M.;Wells, Jonathan D.;Carreon, Moises A.;Koh, Carolyn A.
随着能源需求的增加，储存天然气的需求也在增加。天然气水合物提供了一个独特的机会，因为它们由水和气体组成，1 立方米水合物中最多可容纳 160 立方米甲烷（在标准温度下）。将气体水合物与金属有机骨架 HKUST-1 相结合，可以协同改进甲烷储存。这项研究将系统从差示扫描量热计中的 0.5 cm3 扩展到填充柱中的 60 cm3，结果具有高度可重复性，并深入了解 HKUST-1 如何影响甲烷水合物形成的动力学。对于HKUST-1浓度仅为1.0wt%的体系，在测试的操作条件下，水合物成核诱导时间平均减少了86.2±5.4%，水合物形成量增加了47.7%，水合物生长速率平均增加了7.0倍。此外，与没有 HKUST-1 的系统不同，配备 HKUST-1 的系统在冰点以上运行效果最佳，因此形成水合物所需的能量更少。这种性能的可扩展性和积极的动力学效应表明，HKUST-1 和天然气水合物的结合为储存和运输天然气的商业方法提供了有希望的候选者。
As the demand for energy rises, so does the need for storing natural gas. Gas hydrates offer a unique opportunity as they consist of water and gas, and can hold up to 160 m3of methane (at STP) in 1 m3of hydrate. Combining gas hydrates with the metal organic framework HKUST-1 produced synergistic improvements for methane storage. This study scaled the system from 0.5 cm3in a differential scanning calorimeter to 60 cm3in a packed column with a volume, with highly reproducible results, and provided insight into how HKUST-1 affects the kinetics of methane hydrate formation. For the system with HKUST-1 concentration of only 1.0 wt% and at operating conditions tested, the hydrate nucleation induction time reduced on average by 86.2 ± 5.4%,the amount hydrates formed increased by 47.7%, and the rate of hydrate growth increased on average by 7.0 times. Additionally, the system with HKUST-1 operated optimally above the freezing point of ice, unlike a system without HKUST-1, and thus requires less energy to form hydrates. This scalability of performance and positive kinetic effect shows that the combination of HKUST-1 and gas hydrates produce a promising candidate for a commercial method to store and transport natural gas.