An approach to the high efficient exploitation of nature gas hydrate and carbon sequestration via injecting CO2/H2 gas mixture with varying composition

Cao, Bo-Jian; Sun, Yi-Fei; Chen, Hongnan; Zhong, Jin‐Rong; Wang, Ming-Long; Niu, Mengya; Kan, Jingyu; Sun, Chang‐Yu; Chen, Daoyi; Chen, Guangjin

doi:10.1016/j.cej.2022.140634

Cited by 14 publications

(1 citation statement)

References 39 publications

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“…Recently, researchers have focused on the exploitation of NGHs through the CH 4 /CO 2 replacement technique. [25][26][27][28][29] By injecting CO 2 , a phase equilibrium difference is created between NGHs and CO 2 hydrates, allowing for the replacement of CH 4 . This method enables the simultaneous exploitation of NGHs, storage of CO 2 , and preservation of reservoir stability.…”

Section: Introductionmentioning

confidence: 99%

Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Hu,

Gao,

Zhang

et al. 2024

ChemPhysChem

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As a material with high specific surface area and excellent chemical stability, graphene exhibited remarkable adsorption and separation performance as well as a wide range of potential applications. The graphene layer played a significant role in influencing gas transmission. In this study, we employed molecular dynamics simulation to investigate the diffusion characteristics and local structures of a mixed system consisting of CH4, CO2, SO2 and H2O. Additionally, we further examined the transformation of the behavior of these mixtures within graphene layers. The order of diffusion coefficients of the four molecules without graphene was H2O > SO2 > CO2 >> CH4. However, in the double‐layer graphene, the order changed to CH4 > CO2 >> H2O > SO2. Higher temperatures and lower pressures were found to facilitate gas diffusion. Temperature and pressure had great effects on the local structures of CH4, CO2 and SO2, while their impact on H2O was limited due to the extensive network of hydrogen bonds formed by H2O molecules. The statistical results of average coordination number revealed that CH4 tended to aggregate with itself, whereas CO2 and SO2 exhibited a tendency to aggregate with H2O. The graphene structure enhanced the separation and transportation of CH4 from mixed systems.

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Section: Introductionmentioning

confidence: 99%

Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Hu,

Gao,

Zhang

et al. 2024

ChemPhysChem

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show abstract

Optimized dual-gas co-production from hydrate reservoirs with underlying gas through depressurization & well closure cycling: An experimental evaluation

Sun,

Wang,

Xiao

et al. 2024

Chemical Engineering Journal

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Experimental study on the flux-controlled growth of CO2-SO2 hydrates: Implications for hydrate-based CO2 sequestration

Zhang,

Zhou,

Wang

et al. 2024

Chemical Engineering Science

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An approach to the high efficient exploitation of nature gas hydrate and carbon sequestration via injecting CO2/H2 gas mixture with varying composition

Cited by 14 publications

References 39 publications

Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Optimized dual-gas co-production from hydrate reservoirs with underlying gas through depressurization & well closure cycling: An experimental evaluation

Experimental study on the flux-controlled growth of CO2-SO2 hydrates: Implications for hydrate-based CO2 sequestration

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An approach to the high efficient exploitation of nature gas hydrate and carbon sequestration via injecting CO2/H2 gas mixture with varying composition

Cited by 14 publications

References 39 publications

Transformation of Diffusion and Local Structure of CH4, CO2, SO2 and H2O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Transformation of Diffusion and Local Structure of CH4, CO2, SO2 and H2O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Optimized dual-gas co-production from hydrate reservoirs with underlying gas through depressurization & well closure cycling: An experimental evaluation

Experimental study on the flux-controlled growth of CO2-SO2 hydrates: Implications for hydrate-based CO2 sequestration

Contact Info

Product

Resources

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Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study

Transformation of Diffusion and Local Structure of CH₄, CO₂, SO₂ and H₂O Mixtures in Graphene Under Wide Temperature and Pressure Range: A Molecular Dynamics Simulation Study