Novel multi-scale diffusion model for catalytic methane combustion

Huang, Kai; Lian-guang, Wang; Yang, Xu; Wu, Dongfang

doi:10.1007/s11814-017-0037-x

Cited by 8 publications

(2 citation statements)

References 40 publications

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“…Catalytic methane combustion could therefore be considered a suitable alternative to conventional thermal oxidation, as it can minimize thermal NO x generation due to its lower operation temperatures. Thus, the catalytic combustion of methane has been extensively studied using a range of catalysts including CeO 2 [4], Al 2 O 3 [5][6][7][8][9], ZrO 2 [10][11][12][13], MgAl 2 O 4 [2,14], NiAl 2 O 4 [1,15], and SnO 2 [16] supported metal catalysts, and supported Pd catalysts are the most widely utilized to date.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Reoxidation Treatment

2019

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The improvement of methane combustion activity was observed in cyclic temperature-programed and isothermal reactions over Pd/ZrO2 catalysts by simple reduction/reoxidation treatment. The catalytic activity increased during the initial stages of isothermal reaction, and the light-off temperature was lowered as the number of cycles increased in the cyclic temperature-programed reaction. To reveal the origin of activation, variations in the reduction properties after the activation period were carefully investigated through CH4 temperature-programed reduction (TPR) measurements. From the CH4-TPR results, it was confirmed that the reduction temperature decreased significantly after activation. The observation of the CH4-TPR peak at relatively low temperatures is directly proportional to the catalytic activity of CH4 combustion. It was therefore concluded that repeated reduction/reoxidation occurred in the reactant stream, and this phenomenon allowed the combustion reaction to proceed more easily at lower temperatures.

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Section: Introductionmentioning

confidence: 99%

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Reoxidation Treatment

2019

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show abstract

“…Catalytic methane combustion could therefore be considered a suitable alternative to conventional thermal oxidation, as it can minimize thermal NOx generation due to its lower operation temperatures. Thus, the catalytic combustion of methane has been extensively studied using a range of catalysts including CeO2 [4], Al2O3 [5][6][7][8][9], ZrO2 [10][11][12][13], MgAl2O4 [2,14], NiAl2O4 [1,15], and SnO2 [16] supported metal catalysts, and supported Pd catalysts are the most widely utilized to date.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Re-oxidation Treatment

Kim¹,

Hong²,

Shin³

2019

Preprint

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The improvement of the methane combustion activity was observed in cyclic temperature-programmed and isothermal reactions over Pd/ZrO2 catalysts by simple reduction/re-oxidation treatment. The catalytic activity increased during the initial stages of isothermal reaction, and the light-off temperature was lowered as the number of cycles increased in the cyclic temperature-programmed reaction. To reveal the origin of activation, variations in the reduction properties after the activation period were carefully investigated through CH4 temperature-programmed reduction (TPR) measurements. From the CH4-TPR results, it was confirmed that the reduction temperature decreased significantly after activation. The observation of the CH4-TPR peak at relatively low temperatures is directly proportional to the catalytic activity of CH4 combustion. It was therefore concluded that repeated reduction/re-oxidation occurred in the reactant stream, and this phenomenon allowed the combustion reaction to proceed more easily at lower temperatures.

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Methane combustion over Pd/Ni-Al oxide catalysts: Effect of Ni/Al ratio in the Ni-Al oxide support

Hong

Jeon

Lee

et al. 2018

Korean J. Chem. Eng.

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Novel multi-scale diffusion model for catalytic methane combustion

Cited by 8 publications

References 40 publications

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Reoxidation Treatment

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Reoxidation Treatment

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Re-oxidation Treatment

Methane combustion over Pd/Ni-Al oxide catalysts: Effect of Ni/Al ratio in the Ni-Al oxide support

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