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Performance and kinetics of catalytic oxidation of formaldehyde over copper manganese oxide catalyst
Abstract Thermo-catalytic oxidation (TCO) has a great potential for formaldehyde removal in terms of both efficiency and lifetime. This study investigated the performance and kinetics of hopcalite catalyst (CuO–MnO2) for indoor formaldehyde removal. The effect of inlet concentration (typical indoor level: 180–1300 ppb) and moisture concentration (typical indoor level: 2000–30,000 ppm) on the reaction rate was studied at four temperature levels (25–180 °C). The relative humidity shows significant influence on the catalytic oxidation of formaldehyde by CuO/MnO2, especially at room temperature level. The catalytic oxidation of formaldehyde by CuO/MnO2 follows the traditional L–H model. The L–H model described the reaction process best. Furthermore, the reaction kinetics considering multiple parameters including concentration, moisture concentration and temperature was proposed based on the L–H model. Good agreement was found between experimental data and the prediction with the modified L–H model.
Highlights Performance of CuO/MnO2 at various temperature, concentration and RH level is tested. The experimental data are fitted to the L–H model best. The reaction kinetic considering multiple parameters is proposed based on L–H model. Hopcalite catalyst has great potential for formaldehyde control.
Performance and kinetics of catalytic oxidation of formaldehyde over copper manganese oxide catalyst
Abstract Thermo-catalytic oxidation (TCO) has a great potential for formaldehyde removal in terms of both efficiency and lifetime. This study investigated the performance and kinetics of hopcalite catalyst (CuO–MnO2) for indoor formaldehyde removal. The effect of inlet concentration (typical indoor level: 180–1300 ppb) and moisture concentration (typical indoor level: 2000–30,000 ppm) on the reaction rate was studied at four temperature levels (25–180 °C). The relative humidity shows significant influence on the catalytic oxidation of formaldehyde by CuO/MnO2, especially at room temperature level. The catalytic oxidation of formaldehyde by CuO/MnO2 follows the traditional L–H model. The L–H model described the reaction process best. Furthermore, the reaction kinetics considering multiple parameters including concentration, moisture concentration and temperature was proposed based on the L–H model. Good agreement was found between experimental data and the prediction with the modified L–H model.
Highlights Performance of CuO/MnO2 at various temperature, concentration and RH level is tested. The experimental data are fitted to the L–H model best. The reaction kinetic considering multiple parameters is proposed based on L–H model. Hopcalite catalyst has great potential for formaldehyde control.
Performance and kinetics of catalytic oxidation of formaldehyde over copper manganese oxide catalyst
Pei, Jingjing (author) / Han, Xu (author) / Lu, Yi (author)
Building and Environment ; 84 ; 134-141
2014-11-02
8 pages
Article (Journal)
Electronic Resource
English
Performance and kinetics of catalytic oxidation of formaldehyde over copper manganese oxide catalyst
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Performance and kinetics of catalytic oxidation of formaldehyde over copper manganese oxide catalyst
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