Heterogeneous reaction mechanism of elemental mercury oxidation by oxygen species over MnO2 catalyst

2019 ◽  
Vol 37 (3) ◽  
pp. 2967-2975 ◽  
Author(s):  
Zhen Wang ◽  
Jing Liu ◽  
Yingju Yang ◽  
Feng Liu ◽  
Junyan Ding
Keyword(s):  
Reaction Mechanism ◽  
Heterogeneous Reaction ◽  
Elemental Mercury ◽  
Oxygen Species ◽  
Mercury Oxidation

Reaction mechanism of melatonin oxidation by reactive oxygen species in vitro

2011 ◽  
Vol 50 (3) ◽  
pp. 328-335 ◽  
Author(s):  
Dominique Bonnefont-Rousselot ◽  
Fabrice Collin ◽  
Daniel Jore ◽  
Monique Gardès-Albert
Keyword(s):  
Reactive Oxygen Species ◽  
Reaction Mechanism ◽  
Reactive Oxygen ◽  
Oxygen Species

Exploration of reaction mechanism between acid gases and elemental mercury on the CeO2–WO3/TiO2 catalyst via in situ DRIFTS

Fuel ◽  
2019 ◽  
Vol 239 ◽  
pp. 162-172 ◽  
Author(s):  
Guoliang Li ◽  
Shuxiao Wang ◽  
Qingru Wu ◽  
Junhua Li ◽  
Xiaoqing You ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Elemental Mercury ◽  
Acid Gases ◽  
In Situ Drifts ◽  
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.

A new insight into catalytic role of copper sulfate on elemental mercury oxidation: DFT and experimental study

Fuel ◽  
2019 ◽  
Vol 252 ◽  
pp. 10-18 ◽  
Author(s):  
Shu Yang ◽  
Kang Liu ◽  
Min Liu ◽  
Xu Yan ◽  
Cao Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Copper Sulfate ◽  
Elemental Mercury ◽  
Mercury Oxidation ◽  
Catalytic Role ◽  
Insight Into

Elemental Mercury Oxidation over Fe–Ti–Mn Spinel: Performance, Mechanism, and Reaction Kinetics

2016 ◽  
Vol 51 (1) ◽  
pp. 531-539 ◽  
Author(s):  
Shangchao Xiong ◽  
Xin Xiao ◽  
Nan Huang ◽  
Hao Dang ◽  
Yong Liao ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Elemental Mercury ◽  
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.

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