Hydrogen production by radio frequency plasma stimulation in methane hydrate at atmospheric pressure
説明
Abstract Methane hydrate, formed by injecting methane into 100 g of shaved ice at a pressure of 7 MPa and reactor temperature of 0 °C, was decomposed by applying 27.12 MHz radio frequency plasma in order to produce hydrogen. The process involved the stimulation of plasma in the methane hydrate with a variable input power at atmospheric pressure. It was observed that production of CH 4 is optimal at a slow rate of CH 4 release from the methane hydrate, as analyzed by in light of the steam methane reforming (SMR) and the methane cracking reaction (MCR) processes in accordance with the content of gas production. In comparison with the steam methane reforming (SMR), it was found that methane-cracking reaction (MCR) was dominant in conversion of CH 4 into hydrogen. An H 2 content of 55% in gas production was obtained from conversion of 40% of CH 4 at an input power of 150 W. The results clearly show that hydrogen can be directly produced from methane hydrate by the in-liquid plasma method.
収録刊行物
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- International Journal of Hydrogen Energy
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International Journal of Hydrogen Energy 37 (21), 16000-16005, 2012-11
Elsevier BV
