Methane exploitation by carbon dioxide from gas hydrates - Phase equilibria for CO2-CH4 mixed hydrate system
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In this paper, the isothermal phase equilibrium relations of pressure and compositions in the gas, liquid, and hydrate phases for the CO2-CH4 mixed hydrate system at 280 K were obtained in company with the apparent Henry constants for the methane-water system and the three-phase coexisting lines.Abstract:
Natural-gas hydrate fields having a large amount of methane deposits have become the object of public attention as a potential natural-gas resource. An idea of methane exploitation in linkage with CO2 isolation has been presented elsewhere. In the present study, the isothermal phase equilibrium relations of pressure and compositions in the gas, liquid, and hydrate phases for the CO2-CH4 mixed hydrate system at 280 K are obtained in company with the apparent Henry constants for the methane-water system and the three-phase coexisting lines for the methane hydrate system. The averaged distribution coefficient of methane between gas phase and hydrate phase is about 2.5, that is, methane in the hydrate phase is replaced selectively by CO2. This is the first experimental evidence for the possibility of methane exploitation combined with CO2 isolation.read more
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Review of natural gas hydrates as an energy resource: Prospects and challenges ☆
TL;DR: In this article, the authors review various studies on resource potential of natural gas hydrate, the current research progress in laboratory settings, and several recent field trials, and discuss possible limitation in each production method and the challenges to be addressed for large scale production.
BookDOI
Global Energy Assessment: Toward a Sustainable Future
TL;DR: The Global Energy Assessment (GEA) as mentioned in this paper brings together over 300 international researchers to provide an independent, scientifically based, integrated and policy-relevant analysis of current and emerging energy issues and options.
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Investigation into gas production from natural gas hydrate: A review
TL;DR: In this paper, the authors comprehensively review the relevant studies of natural gas hydrates and propose their comments, discuss the limitations and challenges, raise some questions and put forward some suggestions from their points of view.
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Application of gas hydrate formation in separation processes: A review of experimental studies
Ali Eslamimanesh,Amir H. Mohammadi,Amir H. Mohammadi,Dominique Richon,Paramespri Naidoo,Deresh Ramjugernath +5 more
TL;DR: In this article, a brief description of the positive applications of clathrate hydrates and a comprehensive survey of experimental studies performed on separation processes using gas hydrate formation technology is presented.
Journal ArticleDOI
Gas hydrates in sustainable chemistry
Aliakbar Hassanpouryouzband,Aliakbar Hassanpouryouzband,Aliakbar Hassanpouryouzband,Edris Joonaki,Edris Joonaki,Mehrdad Vasheghani Farahani,Satoshi Takeya,Carolyn D. Ruppel,Jinhai Yang,Niall J. English,Judith M. Schicks,Katriona Edlmann,Hadi Mehrabian,Zachary M. Aman,Bahman Tohidi +14 more
TL;DR: This review summarizes the different properties of gas hydrates as well as their formation and dissociation kinetics and then reviews the fast-growing literature reporting their role and applications in the aforementioned fields, mainly concentrating on advances during the last decade.
References
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Clathrate hydrates of natural gases
E. Dendy Sloan,Carolyn A. Koh +1 more
TL;DR: In this paper, the authors compared the properties of hydrates and ice with those of natural gas and showed the effect of thermodynamic inhibitors on the formation of hydrate formation and dissolution process.
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Methane hydrate — A major reservoir of carbon in the shallow geosphere?
TL;DR: The estimated amount of organic carbon in the methane-hydrate reservoir greatly exceeds that in many other reservoirs of the global carbon cycle as discussed by the authors, such as the atmosphere (3.6 Gt), terrestrial biota (830 Gt); terrestrial soil, detritus and peat (1960 Gt).
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Dissociation Pressures of Gas Hydrates Formed by Gas Mixtures
W. R. Parrish,J. M. Prausnitz +1 more
Journal ArticleDOI
Kinetics of methane hydrate decomposition
TL;DR: In this article, the authors studied the kinetics of methane hydrate decomposition using a semibatch stirred-tank reactor and showed that the decomposition rate was proportional to the particle surface area and to the difference in the fugacity of methane at the equilibrium pressure and the degradation pressure.