A novel method to store methane by forming hydrate in the high water-oil ratio emulsions

Mu, Liang; Tan, Qiqi; Li, Xianlong; Zhang, Qingyun; Cui, Qingyan

doi:10.1016/j.energy.2022.126310

Cited by 12 publications

(7 citation statements)

References 60 publications

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“…In order to overcome the kinetic challenges in hydrate-based gas storage applications, mechanical techniques have been extensively utilized. [88][89][90]163,164 These mechanical approaches include stirring, bubbling, and spraying, all of which serve to physically increase the gas-liquid interface within the hydrate formation system. This, in turn, increases the nucleation probability and mass transfer of each component in the system.…”

Section: Kinetic Promotion With Mechanical Techniquesmentioning

confidence: 99%

“…[85][86][87] Traditionally, mechanical stirrers are used to mix water and gas, significantly accelerating hydrate formation compared to unstirred systems. [88][89][90] However, the necessity for continuous mixing of the internal components a MgH 2 was compared as a representative of metal hydride. b Methylcyclohexane was compared as a representative of liquid organic hydrogen carrier.…”

Section: Introductionmentioning

confidence: 99%

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Perspectives on facilitating natural gas and hydrogen storage in clathrate hydrates under a static system

Lee,

Kim,

Lee

et al. 2024

Green Chem.

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Section: Kinetic Promotion With Mechanical Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Perspectives on facilitating natural gas and hydrogen storage in clathrate hydrates under a static system

Lee,

Kim,

Lee

et al. 2024

Green Chem.

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“…It should be noted that the hydrate dissociation experiment was conducted at the experimental conditions of 283.15 K and 1 atm (through venting). We followed the approach proposed by Sun et al 57 as well as our previous work 67 that a small amount of n-octane was served as the defoamer to eliminate these foam since CDA was preferentially dissolved in the oil phase instead of water. Figure S6b shows the CH 4 /THF hydrate dissociation in the presence of only 2 vol % n-octane (based on the water volume), and the foam was significantly decreased in this case.…”

Section: Mechanism Analysis Of Hydratementioning

confidence: 99%

Methane Storage by Forming sII Hydrate in the Presence of a Novel Kinetic Promoter with the Function of Alleviating the Wall-Climbing Growth

Tan

et al. 2023

Energy Fuels

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Storing methane by forming structure II hydrate in the presence of thermodynamic hydrate promoters gains extensive attention due to the moderate operation conditions. Although the reaction rate and gas uptake can be improved by adding kinetic hydrate promoters (KHPs), the concomitant wall-climbing effect often leads to reactors and even pipelines being filled with hydrate. Therefore, in this study, a novel kind of KHPs [cocamidopropyl dimethylamine (CDA)] was developed to promote CH 4 / tetrahydrofuran (THF, 5.56 mol %) hydrate formation and alleviate the hydrate wall-climbing growth. Results showed that the hydrate formation rate enhanced, and the induction time decreased as the CDA concentration increased. The largest CH 4 storage capacity achieved was 107.78 ± 1.89 v/v (the volume ratio of gas to hydrate, and the theoretical value is 115 v/v) at 283.15 K and at an initial pressure of 7.2 MPa, which was obtained at the CDA concentration of 0.2 wt %. The evolutionary morphologies of hydrate growth in the presence or absence of CDA were observed during the initial formation stage, confirming the great promotion effect of CDA on CH 4 /THF hydrate formation. The hydrate formed in the systems without CDA filled up the entire window, while the wall-climbing effect was significantly alleviated in the CDA-contained systems. As far as we know, this is the first time to report that a KHP (CDA) has the dual function of enhancing hydrate formation kinetics and alleviating its upward growth. In addition, the effect of CDA and L-tryptophan (L-Trp) on hydrate formation was compared at their optimal dosages under the currently experimental conditions, and the results indicated that CDA performed better in terms of hydrate induction time, formation rate, gas uptake, and wall-climbing height.

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“…A more detailed description about the apparatus can be found in our previous studies. 35,36 2.3. Experimental Procedure.…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…The experimental data can be automatically recorded in a computer by the data acquisition system. A more detailed description about the apparatus can be found in our previous studies. , …”

Section: Experimental Sectionmentioning

confidence: 99%

Improving Methane Hydrate Formation Kinetics and Gas Storage Capacity with a Promoter

Mu,

Zhao,

Zhou

et al. 2023

Energy Fuels

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A novel method to store methane by forming hydrate in the high water-oil ratio emulsions

Cited by 12 publications

References 60 publications

Perspectives on facilitating natural gas and hydrogen storage in clathrate hydrates under a static system

Perspectives on facilitating natural gas and hydrogen storage in clathrate hydrates under a static system

Methane Storage by Forming sII Hydrate in the Presence of a Novel Kinetic Promoter with the Function of Alleviating the Wall-Climbing Growth

Improving Methane Hydrate Formation Kinetics and Gas Storage Capacity with a Promoter

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