Simultaneous catalytic reduction of SO2 and NO from flue gas using H2S as a reductant at low temperatures

2020 ◽  
Vol 5 (3) ◽  
pp. 561-569
Author(s):  
Xianghong Lü ◽  
Hao Li ◽  
Xiaohui Du ◽  
Xue Wang ◽  
Minyi Lan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Flue Gas ◽  
Low Temperatures ◽  
High Efficiency ◽  
Catalytic Reduction ◽  
Simultaneous Removal ◽  
Temperature Range

High-efficiency simultaneous removal of NO and SO2 in flue gas can be realized by catalytic reduction with H2S on CeO2–AT catalyst in the low temperature range of 240 to 280 °C.

Simultaneous removal of NO and Hg0 from flue gas over MnSmCo/Ti catalyst at low temperature

2020 ◽  
Author(s):  
Lijun Liu ◽  
Sheng Su ◽  
Kai Xu ◽  
Mengxia Qing ◽  
Haifeng Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Flue Gas ◽  
Simultaneous Removal

Preparation and Performance of Several Non-Precious Metal Oxides Catalysts for the Low Temperature SCR of NOx with NH3

2011 ◽  
Vol 356-360 ◽  
pp. 1528-1534
Author(s):  
Wei Fang Dong
Keyword(s):  
Low Temperature ◽  
Metal Oxides ◽  
Flue Gas ◽  
Precious Metal ◽  
Catalytic Reduction ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Fixed Bed Reactor ◽  
Low Temperature Scr ◽  
Scr Of Nox

A series of non-precious metal oxides catalysts were prepared for low-temperature selective catalytic reduction (SCR) of NOx with NH3 in a fixed bed reactor. The catalytic performance was evaluated by the removal efficiency of NOx and N2selectivity which were respectively detected by flue gas analyzer and flue gas chromatograph. Furthermore, the components of gas products from the above experiments were analysed with 2010 GC-MS. The results illustrated that the MnO2exhibited the highest NOx conversion to 95.46% and the highest selectivity of N2to 100% at temperature of 393K, then followed ZrO2, Al2O3and Fe2O3.

Highly dispersed Fe2O3 on carbon nanotubes for low-temperature selective catalytic reduction of NO with NH3

2015 ◽  
Vol 51 (5) ◽  
pp. 956-958 ◽  
Author(s):  
Zhenping Qu ◽  
Lei Miao ◽  
Hui Wang ◽  
Qiang Fu
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
No Conversion ◽  
Highly Dispersed

Highly dispersed Fe2O3 nanoparticles supported on CNTs showed excellent NO conversion, selectivity and durability towards SO2/H2O at low temperatures (200–325 °C).

Development of Catalyst-Sorbents for Simultaneous Removal of SO2From Flue Gas by Low Temperature Ozone Oxidation

2012 ◽  
Vol 34 (3) ◽  
pp. 204-212 ◽  
Author(s):  
Z.H. Wang ◽  
X. Zhang ◽  
Y.Q. Zhu ◽  
Z.Q. Ling ◽  
Z.J. Zhou ◽  
...  
Keyword(s):  
Low Temperature ◽  
Flue Gas ◽  
Simultaneous Removal ◽  
Ozone Oxidation

Simultaneous removal of SO2 and NOx from flue gas using a CuO/Al2O3 catalyst sorbentI. Deactivation of SCR activity by SO2 at low temperatures

2004 ◽  
Vol 224 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Guoyong Xie ◽  
Zhenyu Liu ◽  
Zhenping Zhu ◽  
Qingya Liu ◽  
Jun Ge ◽  
...  
Keyword(s):  
Flue Gas ◽  
Low Temperatures ◽  
Simultaneous Removal ◽  
Removal Of So2 ◽  
Al2o3 Catalyst

PERSISTENT PHOTOCONDUCTIVITY IN La0.7CaxBa1-xMnO3 THIN FILMS

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3786-3791 ◽  
Author(s):  
R. CAURO ◽  
J. C. GRENET ◽  
A. GILABERT ◽  
M. G. MEDICI
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Visible Light ◽  
Low Temperatures ◽  
Transport Mechanism ◽  
Persistent Photoconductivity ◽  
Temperature Range ◽  
Insulator Metal Transition ◽  
First Time

We report, for the first time, experiments of persistent photoconductivity (PPC) in thin films of manganese perovskites La 0.7 Ca 0.25 Ba 0.05 MnO 3 and La 0.7 Ca 0.2 Ba 0.1 MnO 3 showing a persistent decrease of a few percent of the resistance after illumination with visible light. These persistent photoinduced effects are seen only in a range of low temperatures (<25 K) well below the insulator-metal transition at respectively T c=173 K and T c=120 K. In this low temperature range, the transport mechanism is rather of activated hopping type regime.

scholarly journals Performance of Mn-Fe-Ce/GO-x for Catalytic Oxidation of Hg0 and Selective Catalytic Reduction of NOx in the Same Temperature Range

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 399 ◽  
Author(s):  
Donghai An ◽  
Xiaoyang Zhang ◽  
Xingxing Cheng ◽  
Yong Dong
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Oxidation ◽  
Flue Gas ◽  
Photoelectron Spectroscopy ◽  
Catalytic Reduction ◽  
Good Mechanical Property ◽  
Active Components ◽  
Thermal Methods ◽  
Temperature Range ◽  
Reduction Of Nox

A series of composites of Mn-Fe-Ce/GO-x have been synthesized by a hydrothermal method. Their performance in simultaneously performing the catalytic oxidation of Hg0 and the selective catalytic reduction of nitrogen oxides (NOx) in the same temperature range were investigated. In order to investigate the physicochemical properties and surface reaction, basic tests, including Brunauer-Emmett-Teller (BET), XRD, scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were selected. The results indicate that the active components deposited on graphene play an important role in the removal of mercury and NOx, with different valences. Especially, the catalyst of Mn-Fe-Ce/GO-20% possesses an excellent efficiency in the temperature range of 170 to 250 °C. Graphene has a huge specific surface area and good mechanical property; thus, the active components of the Mn-Fe-Ce catalyst can be highly dispersed on the surface of graphene oxide. In addition, the effects of O2, H2O, NO and SO2 on the removal efficiency of Hg0 were examined in flue gas. Furthermore, the regeneration experiments conducted by thermal methods proved to be promising methods.

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