Simultaneous removal of elemental mercury and NO in simulated flue gas over V 2 O 5 /ZrO 2 -CeO 2  catalyst

Zhao, Lingkui; Li, Caiting; Li, Shanhong; Wang, Yan; Zhang, Junyi; Wang, Teng; Zeng, Guangming

doi:10.1016/j.apcatb.2016.05.079

Cited by 179 publications

(57 citation statements)

References 83 publications

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“…In other words, the CoCe-MA catalyst exhibited the highest concentration of surface Ce 3+ species. The presence of Ce 3+ could cause charge imbalance and oxygen vacancies of catalysts, resulting in more active surface oxygen species [40,41]. Thus, the concentration of surface Ce 3+ species may be closely related to the catalytic activity of the catalysts.…”

Section: Xps Resultsmentioning

confidence: 99%

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

et al. 2019

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Cobalt cerium oxide catalysts with small molecular organic acids (SOAs) as chelating agents were prepared via the sol–gel method and investigated for the complete oxidation of toluene. Four kinds of natural SOAs, i.e. malic acid (MA), citric acid (CA), glycolic acid (GA), and tartaric acid (TA), were selected. The effect of organic acids on the composition, structure, morphology and catalytic performance of metal oxides is discussed in details. The cobalt cerium oxides catalysts were characterized by various techniques, including TG–DSC, XRD, SEM–EDS, N2–adsorption and desorption, XPS, and H2–TPR analyses. The results show that the nature of organic acids influenced the hydrolysis, condensation and calcination processes, as well as strongly affected the textural and physicochemical properties of the metal oxides synthesized. The best catalytic activity was obtained with the CoCe–MA catalyst, and the toluene conversion reached 90% at 242 °C. This outstanding catalytic activity could be related to its textural, redox properties and unique surface compositions and oxidation states. In addition, the CoCe–MA catalyst also showed excellent stability in long–time activity test.

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Section: Xps Resultsmentioning

confidence: 99%

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

et al. 2019

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“…CeO 2 ‐ZrO 2 supported metal oxides/chlorides (MnO x , V 2 O 5 , CoO x , IrO 2 ,CuCl 2, RuO 2 ) have been extensively investigated for Hg 0 removal . For instance, Zhang et al .…”

Section: Hg0 Removalmentioning

confidence: 88%

“…CeO 2 as a Support CeO 2 -ZrO 2 supported metal oxides/chlorides (MnO x , V 2 O 5 , CoO x , IrO 2 ,CuCl 2, RuO 2 ) have been extensively investigated for Hg 0 removal. [78,100,101,108,110,111] For instance, Zhang et al [116] investigated the simultaneous removal of NO and Hg 0 through SCR catalysis using a V 2 O 5 /CeO 2 -ZrO 2 . The utilization of a CeO 2 -ZrO 2 support enhanced the texture and redox properties of V 2 O 5, leading to the abatement of both hazardous gases.…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

Role of Ceria in the Design of Composite Materials for Elemental Mercury Removal

Jampaiah

Chalkidis

Sabri

et al. 2018

The Chemical Record

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The necessity to drastically act against mercury pollution has been emphatically addressed by the United Nations. Coal‐fired power plants contribute a great deal to the anthropogenic emissions; therefore, numerous sorbents/catalysts have been developed to remove elemental mercury (Hg0) from flue gases. Among them, ceria (CeO2) has attracted significant interest, due to its reversible Ce3+/Ce4+ redox pair, surface‐bound defects and acid‐base properties. The removal efficiency of Hg0 vapor depends among others, on the flue gas composition and temperature. CeO2 can be incorporated into known materials in such a way that the abatement process can be effective at different operating conditions. Hence, the scope of this account is to discuss the role of CeO2 as a promoter, active phase and support in the design of composite Hg0 sorbents/catalysts. The elucidation of each of these roles would allow the integration of CeO2 advantageous characteristics to such degree, that tailor‐made environmental solution to complex issues can be provided within a broader application scope. Besides, it would offer invaluable input to theoretical calculations that could enable the materials screening and engineering at a low cost and with high accuracy.

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“…[1][2][3] Several emission control technologies have been proposed and applied for the ue gas treatment. [4][5][6][7][8] Hereinto, catalysts are becoming the critical part of these emission control technologies, including NO x reduction, 4,9 NO oxidation, 10,11 Hg 0 oxidation, 12,13 soot combustion, 14 VOCs combustion, 15,16 etc. The catalyst stability is a crucial factor when evaluating its feasibility for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

“…The catalyst stability is a crucial factor when evaluating its feasibility for industrial applications. Furthermore, many components such as SO 2 , 17 water vapor, 12 ash, alkali metals (e.g. K, Na), 18,19 and other harmful species (e.g.…”

Section: Introductionmentioning

confidence: 99%

Catalyst tolerance to SO₂and water vapor of Mn based bimetallic oxides for NO deep oxidation by ozone

et al. 2017

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Simultaneous removal of elemental mercury and NO in simulated flue gas over V 2 O 5 /ZrO 2 -CeO 2 catalyst

Cited by 179 publications

References 83 publications

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

Role of Ceria in the Design of Composite Materials for Elemental Mercury Removal

Catalyst tolerance to SO₂and water vapor of Mn based bimetallic oxides for NO deep oxidation by ozone

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Simultaneous removal of elemental mercury and NO in simulated flue gas over V 2 O 5 /ZrO 2 -CeO 2 catalyst

Cited by 179 publications

References 83 publications

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

Effect of Small Molecular Organic Acids on the Structure and Catalytic Performance of Sol–Gel Prepared Cobalt Cerium Oxides towards Toluene Combustion

Role of Ceria in the Design of Composite Materials for Elemental Mercury Removal

Catalyst tolerance to SO2and water vapor of Mn based bimetallic oxides for NO deep oxidation by ozone

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Catalyst tolerance to SO₂and water vapor of Mn based bimetallic oxides for NO deep oxidation by ozone