Quantitative analysis of methane hydrate formation in size-varied porous media for gas storage and transportation application

Cheng, Zucheng; Xu, Nan; Liu, Weiguo; Zhao, Yuechao; Zhao, Jiafei; Jiang, Lanlan; Zheng, Jia‐nan

doi:10.1016/j.fuel.2021.121021

Cited by 39 publications

(17 citation statements)

References 64 publications

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“…This may be because the hydrate film formed on the surface of nanoparticles fell off, leading to second nucleate. [26,27] Lu et al [28] also found three platforms in the gas consumption curve of 0.2 wt% graphite nanofluid. Klapproth et al [29] concluded that hydrate in the secondary nucleation was initiated by a change in the growth mechanism from enclathration to gas diffusion.…”

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

“…Jin et al [30] observed the two-stage growth mode of hydrate formation-collapse rupture-continuous growth. Cheng et al [27] proposed that the secondary nucleation of hydrate was more obvious in porous media with smaller particle size. Lu et al [28] believed that the aggregation of nanoparticles was enhanced with the increase in the nanoparticle concentration, which led to the increase of the particle size of nanoparticles.…”

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

“…For 0.2 wt% concentration, the nucleation with a shorter induction period occurred after the first rapid formation period. This may be because the hydrate film formed on the surface of nanoparticles fell off, leading to second nucleate [26,27] . Lu et al [28] .…”

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

“…observed the two‐stage growth mode of hydrate formation‐collapse rupture‐continuous growth. Cheng et al [27] . proposed that the secondary nucleation of hydrate was more obvious in porous media with smaller particle size.…”

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

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Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

et al. 2022

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Hydrate technology promoted the development of natural gas industry. Nanoparticles showed a broad prospect for hydrate technology because of their excellent mass and heat transfer characteristics. At an experimental temperature of 275.15 K and pressure of 5 MPa, silica nanoparticles and cetyltrimethylammonium bromide (CTAB) were used to investigate the characteristics (pressure drop, gas storage capacity, and formation rate). The experimental results showed that the higher the concentration of silica nanofluid, the shorter the induction time. Among the four silica nanoparticles concentration (0.1, 0.2, 0.3, and 0.5 wt%) tested in this work, the concentration of 0.3 wt% was optimal for the enhancement of CH4 hydrate formation. In the complex system composed of silica nanoparticles and CTAB, the surface of silica nanoparticles was positively charged by hydrolysis. The cationic active groups ionized by surfactants were aggregated to the surface of the particles under the Coulomb force. Methane molecules were gathered to hydrophobic groups by non‐polar adsorption, which was more conducive to hydrate formation. Compared to silica nanofluid, the total time for hydrate formation decreased by 66.2 %.

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Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

Section: Effects Of Silica Nanofluid On Hydrate Formationmentioning

confidence: 99%

See 2 more Smart Citations

Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

et al. 2022

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“…The fundamentals of gas hydrate application are closely related to the formation process of gas hydrate [2,[15][16][17]. Natural gas hydrate occurs in continental margin sediments [4,12,13,18].…”

Section: Introductionmentioning

confidence: 99%

Advances in Characterizing Gas Hydrate Formation in Sediments with NMR Transverse Relaxation Time

Liu

Zhan

et al. 2022

Water

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The formation process, structure, and distribution of gas hydrate in sediments have become focal points in exploring and exploiting natural gas hydrate. To better understand the dynamic behavior of gas hydrate formation in sediments, transverse relaxation time (T2) of nuclear magnetic resonance (NMR) is widely used to quantitatively characterize the formation process of gas hydrate and the change in pore characteristics of sediments. NMR T2 has been considered as a rapid and non-destructive method to distinguish the phase states of water, gas, and gas hydrate, estimate the saturations of water and gas hydrate, and analyze the kinetics of gas hydrate formation in sediments. NMR T2 is also widely employed to specify the pore structure in sediments in terms of pore size distribution, porosity, and permeability. For the recognition of the advantages and shortage of NMR T2 method, comparisons with other methods as X-ray CT, cryo-SEM, etc., are made regarding the application characteristics including resolution, phase recognition, and scanning time. As a future perspective, combining NMR T2 with other techniques can more effectively characterize the dynamic behavior of gas hydrate formation and pore structure in sediments.

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Thermodynamic modelling of gas hydrate dissociation conditions in porous medium in the presence of NaCl/methanol aqueous solution

Hashemzadeh,

Javanmardi,

Rasoolzadeh

et al. 2024

Can J Chem Eng

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Due to the growing significance of the existence of gas hydrates in natural media like the ocean floor/permafrost regions and the extraction of natural gas from hydrate reservoirs using thermodynamic hydrate inhibitors, investigating the dissociation of gas hydrates in porous media in the presence of inhibitors is crucial. This work examines a broad range of laboratory data on the dissociation conditions of gas hydrates in the porous mediums when salt/alcohol aqueous solutions are present. The temperature of gas hydrate dissociation in the presence of pure water is calculated using the van der Waals–Platteeuw solid solution theory. The water activity in the porous medium is then calculated by taking into account a number of variables, including the radius of the porous medium, molar volume, shape factor, wetting angle, and surface tension. The Pitzer and Margules activity coefficient models are used to determine the water activity in the presence of salt and alcohol, respectively. Lastly, the gas hydrate dissociation temperature in a porous medium in the presence of salt and/or alcohol aqueous solution is determined by combining Piereon's model with an enthalpy‐based correlation that was proposed by Azimi et al. The selected package can consistently correlate the gas hydrate dissociation conditions in a porous medium in the presence of alcohol or salt aqueous solution. The average absolute deviation (AAD) of 0.67 K for the whole data bank (90 experimental data points) shows the precision of the model.

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Quantitative analysis of methane hydrate formation in size-varied porous media for gas storage and transportation application

Cited by 39 publications

References 64 publications

Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

Advances in Characterizing Gas Hydrate Formation in Sediments with NMR Transverse Relaxation Time

Thermodynamic modelling of gas hydrate dissociation conditions in porous medium in the presence of NaCl/methanol aqueous solution

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