Kinetics of methane storage in the natural tobacco leaching filtrate in the hydrate form

被引：0
|
作者：
Hu H. [1 ,2 ]
Yang L. [1 ,2 ]
Li C. [1 ,2 ]
Liu D. [1 ,2 ]
机构：
[1] College of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai
[2] Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai
来源：
Huagong Xuebao/CIESC Journal | 2023年 / 74卷 / 03期
关键词：
hydrate formation; kinetics; methane storage; promotion; tobacco leaching filtrate;
D O I：
10.11949/0438-1157.20221242
中图分类号：
学科分类号：
摘要：
Hydrate storage of natural gas is recognized as a highly efficient gas storage technology with great potential. How to accelerate the formation of hydrates and ensure the environmental protection of hydration-promoting materials are the key to the practical application of hydration storage gas technology. In order to investigate the kinetics of methane hydrate formation in the natural tobacco leaching filtrate, the solutions by filtering tobacco shred/granule-water mixtures were used to store methane in hydrate under 8.0 MPa and 274.2 K. The experimental results showed that the solution with a water-tobacco mass ratio (liquid-solid ratio) of 5—100 had similar properties of surfactant, and its surface tension decreased by 36.7%—47.5% compared with pure water. Methane hydrate could be formed rapidly in active solutions. The content of active substance in tobacco shred leaching filtrate was significantly lower than that in tobacco granule leaching filtrate. When the liquid-solid ratio was low, tobacco shred leaching filtrate could store more gas in hydrate and had higher storage rate. When the liquid-solid ratio was high, tobacco granule leaching filtrate had better gas storage performance. Especially, the methane uptakes in tobacco granule leaching filtrate with liquid-solid ratio of 50 reached 118.5 mmol·mol-1, and the gas storage rate was up to 2.98 mmol·mol-1·min-1 © 2023 Chemical Industry Press. All rights reserved.
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页码：1313 / 1321
页数：8
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