Hydrogen Enrichment of Low-Calorific Fuels Using Barrier Discharge Enhanced Ni/-Al2O3 Bed Reactor: Thermal and
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- 作者：Tomohiro Nozaki ; Tsukijihara Hiroyuki ; and Ken Okazaki
- 刊名：Energy & Fuels
- 出版年：2006
- 出版时间：January 2006
- 年：2006
- 卷：20
- 期：1
- 页码：339 - 345
- 全文大小：555K
- 年卷期：v.20,no.1(January 2006)
- ISSN：1520-5029
文摘
We have developed a dielectric barrier discharge (DBD) and catalyst hybrid reactor for reforming low-calorific fuels such as biogas at low temperature (300-500 
C). This technique allows the use of low-temperaturethermal energy wasted from various industries, which ultimately provides a variety of energy utility options.The idea behind the project is that radicals produced by DBD can be decomposed at much lower temperaturesthan in a normal reforming condition. However, the situation becomes even more complicated because DBDenhances chemical reactions in different ways: (1) Excited species, radicals, and ions decompose on the catalystat a lower temperature than the stable molecule. (2) Byproducts such as acetylene and ethane decompose atlower temperatures than methane. (3) Heat that is generated by DBD also enhances regular catalytic reforming.A mechanistic study of steam reforming in a plasma hybrid reactor was performed to distinguish their respectivecontributions to the synergistic effect. Results are discussed on the basis of the catalyst bed temperature, whichwas measured accurately with an infrared camera with and without DBD. Thermal and nonthermal effects ofDBD on the catalytic reforming of methane are discussed extensively.
C). This technique allows the use of low-temperaturethermal energy wasted from various industries, which ultimately provides a variety of energy utility options.The idea behind the project is that radicals produced by DBD can be decomposed at much lower temperaturesthan in a normal reforming condition. However, the situation becomes even more complicated because DBDenhances chemical reactions in different ways: (1) Excited species, radicals, and ions decompose on the catalystat a lower temperature than the stable molecule. (2) Byproducts such as acetylene and ethane decompose atlower temperatures than methane. (3) Heat that is generated by DBD also enhances regular catalytic reforming.A mechanistic study of steam reforming in a plasma hybrid reactor was performed to distinguish their respectivecontributions to the synergistic effect. Results are discussed on the basis of the catalyst bed temperature, whichwas measured accurately with an infrared camera with and without DBD. Thermal and nonthermal effects ofDBD on the catalytic reforming of methane are discussed extensively.