Chemical Reaction Mechanism of Sintering Flue Gas Desulphurization with Pyrolusite Slurry

2011 ◽  
Vol 287-290 ◽  
pp. 2937-2940
Author(s):  
Yong Liang Gui ◽  
Qi Cao Yan ◽  
Ya Kun Yan ◽  
Chun Yan Song
Keyword(s):  
Reaction Mechanism ◽  
Chemical Reaction ◽  
Flue Gas ◽  
Ph Value ◽  
Reduction Reaction ◽  
Oxidation Reduction ◽  
Chemical Reaction Mechanism ◽  
Oxidation Reduction Reaction ◽  
Reaction Speed ◽  
Flue Gas Desulphurization

With the beginning of the characteristics of sintering flue gas, the thermodynamics and chemical reaction mechanism of sintering flue gas desulphurization with pyrolusite slurry were analyzed and discussed in the paper. Results shown that the main chemical reaction was oxidation-reduction reaction of sulfur dioxide and manganese dioxide with a high reaction velocity and desulphurization efficiency at the first stage. The reaction speed and the desulphurization efficiency decreased gradually and Mn2+is used as catalyst in the desulphurization reaction with the proceeding of chemical reaction and decreasing of PH value of solution.

Experimental Study of Sintering Flue Gas Desulphurization with Ferromanganese Ore Slurry

2011 ◽  
Vol 402 ◽  
pp. 421-424 ◽  
Author(s):  
Chun Yan Song ◽  
Yong Liang Gui ◽  
Qi Cao Yan ◽  
Bin Sheng Hu
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Reaction Mechanism ◽  
Chemical Reaction ◽  
Flue Gas ◽  
Gas Flow ◽  
Chemical Reaction Mechanism ◽  
Flue Gas Desulphurization

Combining with the chemical reaction mechanism of sintering flue gas desulphurization with ferromanganese ore slurry, the effect of several technology parameters on desulphurization efficiency of simulative sintering flue gas was studied systematically with the sprayed bubbling reactor designed by ourselves. Result indicated that the desulphurization efficiency of sintering flue gas increased with the decreasing of ferromanganese ore particle size and the increasing of stirring speed of ferromanganese ore slurry. The high SO2 concentration in sintering flue gas is not beneficial to improve the desulphurization effect. High desulphurization efficiency can be achieved by reducing flux of sintering flue gas. However, the formation of bubbling reaction is difficult if the sintering flue gas flow is too low, and then the desulphurization efficiency decreased.

A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density

2015 ◽  
Vol 3 (32) ◽  
pp. 16633-16641 ◽  
Author(s):  
Yu Yu ◽  
Wenyu Gao ◽  
Zongxu Shen ◽  
Qing Zheng ◽  
Hao Wu ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Energy Density ◽  
Electrode Material ◽  
Reduction Reaction ◽  
Supercapacitor Electrode ◽  
High Capacitance ◽  
Oxidation Reduction ◽  
Oxidation Reduction Reaction ◽  
Graphene Nanocomposite

A novel Ni3N/graphene nanocomposite has been synthesized as pseudo supercapacitor electrode material with high capacitance and energy density, due to its unique two-step oxidation/reduction reaction mechanism.

Low temperature hydrothermal synthesis mechanism and thermal stability of p-type CuMnO2 nanocrystals

2016 ◽  
Vol 40 (7) ◽  
pp. 6498-6504 ◽  
Author(s):  
Dehua Xiong ◽  
Qingqing Zhang ◽  
Zijuan Du ◽  
Santosh Kumar Verma ◽  
Hong Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Reaction Mechanism ◽  
Hydrothermal Synthesis ◽  
Low Temperature ◽  
Reduction Reaction ◽  
Synthesis Mechanism ◽  
Oxidation Reduction ◽  
Oxidation Reduction Reaction ◽  
P Type ◽  
Thermal Stability Of

We first report an oxidation–reduction reaction mechanism for the hydrothermal synthesis of CuMnO2 nanocrystals at the low temperature of 80 °C.

Pseudomonas aeruginosa transition from environmental generalist to human pathogen

2021 ◽  
Vol 13 (1) ◽  
pp. 11
Author(s):  
Gabriela Vasco ◽  
Gabriel Trueba
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Human Body ◽  
Biofilm Formation ◽  
Reduction Reaction ◽  
Human Pathogen ◽  
Opportunistic Bacteria ◽  
Oxidation Reduction ◽  
Mammalian Tissues ◽  
Oxidation Reduction Reaction ◽  
Source Sink

Opportunistic bacteria Pseudomonas aeruginosa is one of the major concerns as an etiological agent of nosocomial infections in humans. Many virulence factors used to colonize the human body are the same as those used by P. aeruginosa to thrive in the environment such as membrane transport, biofilm formation, oxidation/reduction reaction, among others. P. aeruginosa origin is mainly from the environment, the adaptation to mammalian tissues may follow a source-sink evolution model; the environment is the source of many lineages, some of them capable of adaptation to the human body. Some lineages may adapt to humans and go through reductive evolution in which some genes are lost.  The understanding of this process may be critical to implement better methods to control outbreaks in hospitals.

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