H2 promotes the premature replacement of CH4–CO2 hydrate even when the CH4 gas-phase pressure exceeds the phase equilibrium pressure of CH4 hydrate

Xie, Yan; Zheng, Tao; Zhu, Yujie; Sun, Changyu; Chen, Guangjin; Feng, Jingchun

doi:10.1016/j.rser.2024.114582

Renewable and Sustainable Energy Reviews

2024

DOI: 10.1016/j.rser.2024.114582

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H2 promotes the premature replacement of CH4–CO2 hydrate even when the CH4 gas-phase pressure exceeds the phase equilibrium pressure of CH4 hydrate

Yan Xie,

Tao Zheng,

Yujie Zhu

et al.

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Cited by 2 publications

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Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Gambelli

2024

Journal of CO2 Utilization

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Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Gambelli

2024

Journal of CO2 Utilization

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Dual-Gas Coproduction via Depressurization for Methane Hydrate Under Semiadiabatic Heat Transfer Boundary Conditions

Sun,

Chen,

Wang

et al. 2024

Energy Fuels

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This study simulates constrained heat transfer processes in natural environments by establishing a semiadiabatic boundary during methane hydrate formation and dissociation, utilizing an apparatus insulated with materials of low thermal conductivity. Within this semiadiabatic framework, the decrease in system temperature induced by heat absorption during hydrate decomposition cannot be promptly compensated by external heat sources. These results in reduced gas production rates and a lower proportion of gas deriving from hydrate dissociation compared to that observed with an isothermal boundary. The proportion of gas from hydrate dissociation in the produced gas in the semiadiabatic system was lower than that in the isothermal boundary, especially in the early and middle stages. The observed differences in hydrate dissociation behaviors between semiadiabatic and isothermal conditions provide critical insights into the interpretation of experimental studies and their applicability to natural hydrate reservoirs. These findings suggest implications for translating laboratory results into practical strategies for the exploitation of hydrate resources.

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H2 promotes the premature replacement of CH4–CO2 hydrate even when the CH4 gas-phase pressure exceeds the phase equilibrium pressure of CH4 hydrate

Cited by 2 publications

References 65 publications

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Dual-Gas Coproduction via Depressurization for Methane Hydrate Under Semiadiabatic Heat Transfer Boundary Conditions

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H2 promotes the premature replacement of CH4–CO2 hydrate even when the CH4 gas-phase pressure exceeds the phase equilibrium pressure of CH4 hydrate

Cited by 2 publications

References 65 publications

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Dual-Gas Coproduction via Depressurization for Methane Hydrate Under Semiadiabatic Heat Transfer Boundary Conditions

Contact Info

Product

Resources

About

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes

Hydrates production with gaseous CO2/C3H8 and CH4/C3H8 (90/10 vol%) mixtures and definition of the role of propane during CO2/CH4 replacement processes