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Production of hydrogen via methane reforming using atmospheric pressure microwave plasma

✍ Scribed by Mariusz Jasiński; Mirosław Dors; Jerzy Mizeraczyk

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
786 KB
Volume
181
Category
Article
ISSN
0378-7753

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✦ Synopsis

In this paper, results of hydrogen production via methane reforming in the atmospheric pressure microwave plasma are presented. A waveguidebased nozzleless cylinder-type microwave plasma source (MPS) was used to convert methane into hydrogen. Important advantages of the presented waveguide-based nozzleless cylinder-type MPS are: stable operation in various gases (including air) at high flow rates, no need for a cooling system, and impedance matching. The plasma generation was stabilized by an additional swirled nitrogen flow (50 or 100 l min -1 ). The methane flow rate was up to 175 l min -1 . The absorbed microwave power could be changed from 3000 to 5000 W. The hydrogen production rate and the corresponding energy efficiency in the presented methane reforming by the waveguide-based nozzleless cylinder-type MPS were up to 255 g[H 2 ] h -1 and 85 g[H 2 ] kWh -1 , respectively. These parameters are better than those typical of the conventional methods of hydrogen production (steam reforming of methane and water electrolysis).

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