Impact of individual flue gas components on mercury oxidation over a V2O5–MoO3/TiO2 catalyst

2018 ◽  
Vol 42 (24) ◽  
pp. 20190-20196 ◽  
Author(s):  
Bo Zhao ◽  
Jun Han ◽  
Linbo Qin ◽  
Wangsheng Chen ◽  
Zijian Zhou ◽  
...  
Keyword(s):  
Flue Gas ◽  
Mercury Oxidation ◽  
Tio2 Catalyst ◽  
Langmuir Hinshelwood Mechanism

Mercury oxidation by HCl over V2O5–MoO3/TiO2 followed the Langmuir–Hinshelwood mechanism and showed resistance to SO2.

Effects of flue-gas parameters on low temperature NO reduction over a Cu-promoted CeO2–TiO2 catalyst

Fuel ◽  
2015 ◽  
Vol 159 ◽  
pp. 876-882 ◽  
Author(s):  
Shaokang Wu ◽  
Hailong Li ◽  
Liqing Li ◽  
Chang-Yu Wu ◽  
Junying Zhang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Flue Gas ◽  
No Reduction ◽  
Tio2 Catalyst

Mechanistic and kinetic studies of elemental mercury oxidation over a RuO2/rutile TiO2 catalyst

2017 ◽  
Vol 7 (20) ◽  
pp. 4669-4679 ◽  
Author(s):  
Zhouyang Liu ◽  
Vishnu Sriram ◽  
Can Li ◽  
Joo-Youp Lee
Keyword(s):  
Kinetic Study ◽  
Ruthenium Oxide ◽  
Kinetic Studies ◽  
Elemental Mercury ◽  
Oxidation Catalyst ◽  
Mechanistic Study ◽  
Mercury Oxidation ◽  
Rutile Tio2 ◽  
Tio2 Catalyst

A mechanistic study using in situ DRIFTS and a kinetic study were conducted on a ruthenium oxide based mercury oxidation catalyst.

Sustained-release of interlayer chloride in iron oxychloride for mercury oxidation from industrial flue gas

2021 ◽  
pp. 132502
Author(s):  
Jiaxing Li ◽  
Haomiao Xu ◽  
Zhijie Huang ◽  
Qinyuan Hong ◽  
Weiwei Li ◽  
...  
Keyword(s):  
Sustained Release ◽  
Flue Gas ◽  
Mercury Oxidation

Prediction of Mercury Speciation in Coal-Combustion Systems

2006 ◽  
Author(s):  
Neelesh S. Bhopatkar ◽  
Heng Ban ◽  
Thomas K. Gale
Keyword(s):  
Flue Gas ◽  
Power Plants ◽  
Heterogeneous Reaction ◽  
Oxidation Mechanism ◽  
Full Scale ◽  
Carbon Surface ◽  
Unburned Carbon ◽  
Oxidation Reactions ◽  
Mercury Oxidation ◽  
Chemical Kinetic Model

This study is a part of a comprehensive investigation, to conduct bench-, pilot-, and full-scale experiments and theoretical studies to elucidate the fundamental mechanisms associated with mercury oxidation and capture in coal-fired power plants. The objective was to quantitatively describe the mechanisms governing adsorption, desorption, and oxidation of mercury in coal-fired flue gas carbon, and establish reaction-rate constants based on experimental data. A chemical-kinetic model was developed which consists of homogeneous mercury oxidation reactions as well as heterogeneous mercury adsorption reactions on carbon surfaces. The homogeneous mercury oxidation mechanism has eight reactions for mercury oxidation. The homogeneous mercury oxidation mechanism quantitatively predicts the extent of mercury oxidation for some of datasets obtained from synthetic flue gases. However, the homogeneous mechanism alone consistently under predicts the extent of mercury oxidation in full scale and pilot scale units containing actual flue gas. Heterogeneous reaction mechanisms describe how unburned carbon or activated carbon can effectively remove mercury by adsorbing hydrochloric acid (HCI) to form chlorinated carbon sites, releasing the hydrogen. The elemental mercury may react with chlorinated carbon sites to form sorbed HgCl. Thus mercury is removed from the gas-phase and stays adsorbed on the carbon surface. Predictions using this model have very good agreement with experimental results.

Alkali-driven active site shift of fast SCR with NH3 on V2O5–WO3/TiO2 catalyst via a novel Eley–Rideal mechanism

2019 ◽  
Vol 9 (21) ◽  
pp. 6085-6091 ◽  
Author(s):  
Jinyao Xiang ◽  
Xuesen Du ◽  
Yuyi Wan ◽  
Yanrong Chen ◽  
Jingyu Ran ◽  
...  
Keyword(s):  
Active Site ◽  
Tio2 Catalyst ◽  
Alkali Doping ◽  
Langmuir Hinshelwood Mechanism ◽  
Fast Scr

The heterogeneous SCR reaction obeys the well-known Eley–Rideal mechanism or Langmuir–Hinshelwood mechanism, while fast SCR over alkali-doping catalysts follows the another “E–R” mechanism with adsorbed NO2.

Ab initio-based Mercury Oxidation Kinetics via Bromine at Postcombustion Flue Gas Conditions

2011 ◽  
Vol 25 (4) ◽  
pp. 1348-1356 ◽  
Author(s):  
Jennifer Wilcox ◽  
Terumi Okano
Keyword(s):  
Ab Initio ◽  
Flue Gas ◽  
Oxidation Kinetics ◽  
Mercury Oxidation

Significance of RuO2Modified SCR Catalyst for Elemental Mercury Oxidation in Coal-fired Flue Gas

2011 ◽  
Vol 45 (13) ◽  
pp. 5725-5730 ◽  
Author(s):  
Naiqiang Yan ◽  
Wanmiao Chen ◽  
Jie Chen ◽  
Zan Qu ◽  
Yongfu Guo ◽  
...  
Keyword(s):  
Flue Gas ◽  
Elemental Mercury ◽  
Mercury Oxidation ◽  
Scr Catalyst
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