Experimental Study on the Catalytic Oxidation of SO2 by V2O5

In order to achieve the catalytic oxidation of the low concentration SO2 flue gas in SNOX process, screen out the appropriate type of V2O5 catalyst for high-efficient transformation of the low concentration SO2. In order to provide foundation for reaction progression design, calculate the reaction depth of the process condition through the reaction thermodynamics analysis. According to the technological factors of affecting the effect of catalytic oxidation, investigate the reaction temperature, the space velocity and the mole ratio between O 2and SO2 on the SO2 transformation. Based on the experimental results, we did the reaction kinetics calculation. Above theoretical and experimental results provide the necessary technical parameters for designing catalystic oxidation of the low concentration SO2 in SNOX process.

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The catalytic oxidation removal of low-concentration HCHO at high space velocity by partially crystallized mesoporous MnO x

Chemical Engineering Journal ◽

10.1016/j.cej.2017.03.098 ◽

2017 ◽

Vol 320 ◽

pp. 667-676 ◽

Cited By ~ 36

Author(s):

Min Wang ◽

Lingxia Zhang ◽

Weimin Huang ◽

Tongping Xiu ◽

Chenggang Zhuang ◽

...

Keyword(s):

Catalytic Oxidation ◽

Space Velocity ◽

Low Concentration ◽

High Space ◽

High Space Velocity

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Core-shell nanostructure α-Fe2O3/SnO2 binary oxides for the catalytic oxidation and adsorption of elemental mercury from flue gas

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2021.105137 ◽

2021 ◽

Vol 9 (2) ◽

pp. 105137

Author(s):

Yongpeng Ma ◽

Tengfei Xu ◽

Ling Li ◽

Jiandong Wang ◽

Yu Li ◽

...

Keyword(s):

Catalytic Oxidation ◽

Flue Gas ◽

Elemental Mercury ◽

Core Shell ◽

Binary Oxides

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Study of Catalytic Reduction of Nox in Flue Gas from a Municipal Refuse Incinerator (Experimental Results of Nox Removal Test Plant)

JSME international journal Ser 2 Fluids engineering heat transfer power combustion thermophysical properties ◽

10.1299/jsmeb1988.31.1_135 ◽

1988 ◽

Vol 31 (1) ◽

pp. 135-139

Author(s):

Takaaki MORIMUNE ◽

Naomichi HIRAYAMA

Keyword(s):

Flue Gas ◽

Catalytic Reduction ◽

Experimental Results ◽

Test Plant ◽

Nox Removal ◽

Municipal Refuse ◽

Reduction Of Nox

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An Ultrafast Vitrification Method for Cell Cryopreservation

Journal of Heat Transfer ◽

10.1115/1.4037327 ◽

2017 ◽

Vol 140 (1) ◽

Cited By ~ 3

Author(s):

Fengmin Su ◽

Nannan Zhao ◽

Yangbo Deng ◽

Hongbin Ma

Keyword(s):

Thin Film ◽

Cooling Rate ◽

Experimental Results ◽

Low Concentration ◽

Temperature Range ◽

Thin Film Evaporation ◽

Film Evaporation ◽

A Cell ◽

Cryoprotective Solution ◽

Ultrafast Cooling

Ultrafast cooling is the key to successful cell vitrification cryopreservation of lower concentration cryoprotective solution. This research develops a cell cryopreservation methodology which utilizes thin film evaporation and achieves vitrification of relatively low concentration cryoprotectant with an ultrafast cooling rate. Experimental results show that the average cooling rate of dimethylsulfoxide (DMSO) cryoprotective solution reaches 150,000 °C/min in a temperature range from 10 °C to −180 °C. The ultrafast cooling rate can remarkably improve the vitrification tendencies of the cryoprotective solution. This methodology opens the possibility for more successful cell vitrification cryopreservation.

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A review on catalytic oxidation of chloroaromatics from flue gas

Chemical Engineering Journal ◽

10.1016/j.cej.2017.09.018 ◽

2018 ◽

Vol 334 ◽

pp. 519-544 ◽

Cited By ~ 47

Author(s):

Cuicui Du ◽

Shengyong Lu ◽

Qiuling Wang ◽

Alfons G. Buekens ◽

Mingjiang Ni ◽

...

Keyword(s):

Catalytic Oxidation ◽

Flue Gas

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The Review of Flue Gas Desulfurization with a Readily Available Metal Ions Liquid Catalytic Oxidation Catalyst-Pulp

Progress in Petrochemical Science ◽

10.31031/pps.2018.02.000526 ◽

2018 ◽

Vol 2 (1) ◽

Author(s):

Ping Ning

Keyword(s):

Metal Ions ◽

Catalytic Oxidation ◽

Flue Gas ◽

Flue Gas Desulfurization ◽

Oxidation Catalyst

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Pt-Promoted Tungsten Carbide Nanostructures on Mesoporous Pinewood-Derived Activated Carbon for Catalytic Oxidation of Formaldehyde at Low Temperatures

Sustainable Chemistry ◽

10.3390/suschem1020008 ◽

2020 ◽

Vol 1 (2) ◽

pp. 86-105

Author(s):

Qiangu Yan ◽

Zhiyong Cai

Keyword(s):

Electron Microscopy ◽

Activated Carbon ◽

Relative Humidity ◽

Tungsten Carbide ◽

Catalytic Oxidation ◽

Space Velocity ◽

Catalytic Performance ◽

Inert Atmosphere ◽

Bet Surface Area ◽

Formaldehyde Concentration

Tungsten carbide (WC) nanostructures were prepared by carbothermal reduction (CR) of tungsten-impregnated pinewood-derived activated carbon (AC) at 1000 °C under an inert atmosphere. Brunauer-Emmet-Teller (BET) surface area, pore structures of the AC, and catalyst samples were evaluated by N2 adsorption-desorption experiments. The structures of the catalysts were characterized using X-ray powder diffraction (XRD). The morphologies and particle structures of the synthesized WC nanoparticles were investigated by field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM). The WC/AC material was used as support of the platinum catalysts for catalytic oxidation of formaldehyde (HCHO) from interior sources. Pt-WC/AC catalysts with different platinum loadings were assessed for the catalytic oxidation of HCHO at low temperature. The catalytic performance was found to be significantly influenced by reaction temperature, initial formaldehyde concentration, relative humidity, and space velocity. The testing results demonstrated that HCHO can be totally oxidized by the 1 wt% Pt-WC/AC catalyst in the gas hourly space velocity (GHSV) = 50,000 h−1 at 30 °C with a relative humidity (RH) of 40%.

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Catalytic Oxidation of Chlorobenzene over Pd-TiO2 /Pd-Ce/TiO2 Catalysts

Catalysts ◽

10.3390/catal10030347 ◽

2020 ◽

Vol 10 (3) ◽

pp. 347 ◽

Cited By ~ 1

Author(s):

Wenjun Liang ◽

Xiaoyan Du ◽

Yuxue Zhu ◽

Sida Ren ◽

Jian Li

Keyword(s):

Catalytic Activity ◽

Catalytic Oxidation ◽

Calcination Temperature ◽

Catalyst Activity ◽

Space Velocity ◽

Impregnation Method ◽

Tio2 Catalyst ◽

Metal Support ◽

Oxidation Efficiency

A series of Pd-TiO2/Pd-Ce/TiO2 catalysts were prepared by an equal volume impregnation method. The effects of different Pd loadings on the catalytic activity of chlorobenzene (CB) were investigated, and the results showed that the activity of the 0.2%-0.3% Pd/TiO2 catalyst was optimal. The effect of Ce doping enhanced the catalytic activity of the 0.2% Pd-0.5% Ce/TiO2 catalyst. The characterization of the catalysts using BET, TEM, H2-TPR, and O2-TPD showed that the oxidation capacity was enhanced, and the catalytic oxidation efficiency was improved due to the addition of Ce. Ion chromatography and Gas Chromatography-Mass Spectrometer results showed that small amounts of dichlorobenzene (DCB) and trichlorobenzene (TCB) were formed during the decomposition of CB. The results also indicated that the calcination temperature greatly influenced the catalyst activity and a calcination temperature of 550 °C was the best. The concentration of CB affected its decomposition, but gas hourly space velocity had little effect. H2-TPR indicated strong metal–support interactions and increased dispersion of PdO in the presence of Ce. HRTEM data showed PdO with a characteristic spacing of 0.26 nm in both 0.2% Pd /TiO2 and 0.2% Pd-0.5% Ce/TiO2 catalysts. The average sizes of PdO nanoparticles in the 0.2% Pd/TiO2 and 0.2% Pd-0.5% Ce/TiO2 samples were 5.8 and 4.7 nm, respectively. The PdO particles were also deposited on the support and they were separated from each other in both catalysts.

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