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Effect of additives on formation and decomposition kinetics of methane clathrate hydrates: Application in energy storage and transportation
Author(s) -
Kumar Asheesh,
Kushwaha Omkar Singh,
Rangsunvigit Pramoch,
Linga Praveen,
Kumar Rajnish
Publication year - 2016
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22583
Subject(s) - clathrate hydrate , methane , chemistry , kinetics , hydrate , dissociation (chemistry) , decomposition , tetrahydrofuran , inorganic chemistry , chemical engineering , organic chemistry , physics , quantum mechanics , solvent , engineering
Methane gas storage and transportation via clathrate hydrates is proposed to be a potential solution for large‐scale energy storage. In this work, we study the formation and decomposition kinetics of methane hydrates (MH) in a laboratory‐scale unstirred crystallizer. The present investigation demonstrates comparative studies of hydrate formation and dissociation kinetics in the presence of tetrahydrofuran (55.6 and 27.8 mmol/mol, 5.56 and 2.78 mol % THF) and sodium dodecyl sulphate (1 mg/g, 0.1 wt% SDS). Moreover, the storage capacity and hydrate formation kinetics in both the systems are discussed. In a recent work, enhanced methane hydrate growth in the presence of THF at close to atmospheric conditions was demonstrated. The emphasis of the current work is to study the stability of hydrates to understand dissociation kinetics by measuring the rate of hydrate decomposition at different temperatures. Hydrate stability measurements were performed at −8, −3, 2, 10, and 20 °C to study the decomposition rates of MH and self‐preservation in presence of the two additives THF and SDS.