期刊
APPLIED ENERGY
卷 95, 期 -, 页码 87-92出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2012.02.010
关键词
Nonthermal plasma; Dielectric barrier discharge; Hydrogen sulfide; Hydrogen; Specific input energy
资金
- Ministry of New and Renewable Energy-New Delhi, India
- EPFL, Switzerland
Hydrogen production by nonthermal plasma (NIP) assisted direct decomposition of hydrogen sulfide was studied in a dielectric barrier discharge (DBD) reactor operated under ambient conditions. It may be concluded that NTP is effective in direct decomposition of H2S into H-2 and S. Changing ground electrode material from silver paste to either copper wire or aluminium foil only increased the energy demand, but did not show any significant improvement in conversion. Influence of various parameters like ground electrode, discharge gap, residence time and H2S concentration were studied to achieve hydrogen production under energetically feasible conditions. It has been observed that H2S conversion into H-2 and S may be efficient at high residence time and low concentrations. By optimizing the reaction conditions. H-2 production may be produced at 160 kJ/mol (similar to 1.6 eV/H-2) that is less than the energy demand in steam methane reforming (354 kJ/mol H-2 or 3.7 eV/H-2). (C) 2012 Elsevier Ltd. All rights reserved.
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