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Kinetic analysis of
nitric oxide reduction using biogas as reburning fuel
Xue-Bin
Wang, Qin-Xin Zhao*,
Hou-Zhang
Tan,
Tong-Mo
Xu and
Shi-
En Hui
State
Key Laboratory of Multiphase Flow in Power Engineering,
Xi’an Jiaotong University, Shaanxi 710049, People’s Republic
of China.
*Corresponding author. E-mail:
zhaoqx@mail.xjtu.edu.cn.
Tel.: +86-029-82668703. Fax: +86-029-82668703.
Accepted
20 April, 2009 |
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Biogas
was suggested more suitable as reburning fuel to reduce NO
emission and Miller-Bowan’s mechanism was performed to
analyze the effect of reaction environment in the process of
biogas reburning. Results show that the NO reduction
efficiency increased with the increase of hydrocarbon in
biogas, reburning fuel ratio, initial NO concentration and
residence time. When initial NO concentration reached 700 μl/l
or residence time reaches 2 s, the dependence on initial NO
concentration weakened greatly. NO reduction reached maximum
at 1200 – 1400 K and enhanced abruptly at the stoichiometric
ratio of 0.85 with the decrease of stoichiometirc ratio. The
investigations indicated the optimal biogas reburnning
technology potential to reduce NO pollution.
Key
word:
Biomass, biogas, kinetic analysis, modeling, nitric oxide,
reburning. |
