Water Transfer Characteristics during Methane Hydrate Formation Processes in Layered Media

Zhang, Peng; Wu, Qingbai; Pu, Yunting; Deng, Yousheng

doi:10.3390/en4081129

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…It was observed that pore size is the most important parameter affecting hydrate equilibrium conditions compared to the adsorption mechanism in clays, mineral components, and surface texture of minerals. In the study of Zhang et al, hydrate was formed in sediments having two layers: coarse sand (1–2 mm particle size) and loess (very fine sediment deposits: 0.0345 mm particle size). Two layers of coarse sands bounding a layer of loess and two loess layers bounding a layer of coarse sand were used in different hydrate formation experiments.…”

Section: Theorymentioning

confidence: 99%

New Software That Predicts Hydrate Properties and Its Use in Gas Hydrate Studies

Merey

Sınayuç

2016

J. Chem. Eng. Data

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Gas hydrates have become very popular recently especially as an energy source and a transportation medium. The estimations of hydrate properties such as hydrate equilibrium pressure, cage occupancy, density, mass, hydration number, and enthalpy of hydrate dissociation are quite important. In this study, several codes that are written using Matlab 2014a were explained. These codes, namely HEP.m, HEPComp.m, Sm.m, SmMix.m, and BSR.m are used together for the determination of hydrate properties. HEP.m is used to estimate hydrate equilibrium properties and was integrated with HEPComp.m which calculates gas compositional change of feed gas during hydrate formation of gas mixtures, Sm.m and SmMix.m, which are used to determine the amount of gas and water needed to obtain target saturation in experimental studies of hydrate, formed in sediments inside high pressure reactors. Finally, BSR.m code was written to predict gas composition near the line bottom simulating reflectance (BSR) in ocean sediments. BSR lines indicate the possible locations of gas hydrates in nature. To understand the reliability of the codes written in this study, they were tested and compared with experimental data, other software, and literature data. According to the results of comparison studies, very good results were obtained so the codes in this study are suggested to be used in gas hydrate studies.

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Section: Theorymentioning

confidence: 99%

New Software That Predicts Hydrate Properties and Its Use in Gas Hydrate Studies

Merey

Sınayuç

2016

J. Chem. Eng. Data

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Pore-scale investigation on the influences of mass-transfer-limitation on methane hydrate dissociation using depressurization

Wang

Dong

Chen

et al. 2019

International Journal of Heat and Mass Transfer

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A Review of the Effect of Porous Media on Gas Hydrate Formation

et al. 2022

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Most gas hydrates on the earth are in sediments and permafrost areas, and porous media are often used industrially as additives to improve gas hydrate formation. For further understanding its exploration and exploitation under natural conditions and its application in industry, it is necessary to study the effect of porous media on hydrate formation. The results show that the stacked porous media affects the phase equilibrium of hydrate formation depending on the competition water activity and large specific surface areas, while integrated porous media, such as metal foam, can transfer the hydration heat rapidly and moderate the hydrate phase equilibrium. A supersaturated metal–organic framework is able to significantly improve gas storage performance and can be used as a new material to promote hydrate formation. However, the critical particle size should be studied further for approaching the best promotion effect. In addition, together with the kinetic accelerators, porous media has a synergistic effect on gas hydrate formation. The carboxyl and hydroxyl groups on the surface of porous media can stabilize hydrate crystals through hydrogen bonding. However, the hydroxyl radicals on the silica surface inhibit the combination of CH 4 and free water, making the phase equilibrium conditions more demanding.

show abstract

Water Transfer Characteristics during Methane Hydrate Formation Processes in Layered Media

Cited by 5 publications

References 20 publications

New Software That Predicts Hydrate Properties and Its Use in Gas Hydrate Studies

New Software That Predicts Hydrate Properties and Its Use in Gas Hydrate Studies

Pore-scale investigation on the influences of mass-transfer-limitation on methane hydrate dissociation using depressurization

A Review of the Effect of Porous Media on Gas Hydrate Formation

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