In this section
@article{Zhou:2018:10.1016/j.fuel.2018.03.152,
author = {Zhou, Z and Liu, X and Hu, Y and Xu, J and Cao, XE and Liao, Z and Xu, M},
doi = {10.1016/j.fuel.2018.03.152},
journal = {Fuel},
pages = {134--139},
title = {Investigation on synergistic oxidation behavior of NO and Hg0 during the newly designed fast SCR process},
url = {http://dx.doi.org/10.1016/j.fuel.2018.03.152},
volume = {225},
year = {2018}
}
TY - JOUR
AB - In the present study, elemental mercury (Hg<sup>0</sup>) oxidation behavior in the NO oxidation step of fast SCR process was investigated. The Mn doped CeO<inf>2</inf>-ZrO<inf>2</inf> (CZM0.3) was selected as the catalyst, due to its superior oxygen storage capacity. The results showed that NO could be oxidized efficiently over the catalyst at around 250 °C under the atmosphere of NO/O<inf>2</inf>/N<inf>2</inf>. In the Hg<sup>0</sup>/NO/O<inf>2</inf>/N<inf>2</inf> reaction system, NO oxidation reaction remarkably improved Hg<sup>0</sup> oxidation efficiency. Two domination reaction pathways were proposed to interpret the influence of NO oxidation reaction on Hg<sup>0</sup> oxidation: one through a heterogeneous oxidation process, and the other through a homogeneous reaction. In the heterogeneous oxidation process, NO was adsorbed on the active sites and activated by the surface oxygen to form more active intermediates for Hg<sup>0</sup> oxidation. Hg<sup>0</sup> was probably oxidized in its gaseous state, since the affinity between NO and the catalyst was stronger than that between Hg<sup>0</sup> and the catalyst. The other reaction pathway was a homogeneous route, during which the gaseous NO<inf>2</inf> generated by NO oxidation could oxidize the gaseous Hg<sup>0</sup> within the designed reaction conditions. According to the present research, synergistic oxidation of NO and Hg<sup>0</sup> in the first step of fast SCR appears to be a promising way to remove Hg<sup>0</sup> and NO<inf>x</inf> in coal-fired power plants.
AU - Zhou,Z
AU - Liu,X
AU - Hu,Y
AU - Xu,J
AU - Cao,XE
AU - Liao,Z
AU - Xu,M
DO - 10.1016/j.fuel.2018.03.152
EP - 139
PY - 2018///
SN - 0016-2361
SP - 134
TI - Investigation on synergistic oxidation behavior of NO and Hg0 during the newly designed fast SCR process
T2 - Fuel
UR - http://dx.doi.org/10.1016/j.fuel.2018.03.152
VL - 225
ER -
Climate Science
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