Temperature-Programmed Reduction of Copper-Manganese Catalysts Derived from Biomass Activated Carbon
| Autor: | Yakub Ibrahim, Mohamed Sutan Norsuzailina, Anuar Arfaezah, Nolasco-Hipolito Cirilo, Taufiq-Yap Yun Hin |
|---|---|
| Rok vydání: | 1970 |
| Předmět: |
Materials science
Hydrogen XRD Activated carbon Inorganic chemistry chemistry.chemical_element law.invention Catalysis Bimetal Palm kernel law TJ1-1570 medicine Calcination Mechanical engineering and machinery Temperature-programmed reduction Mechanics of engineering. Applied mechanics General Engineering Selective catalytic reduction TA349-359 TK1-9971 Chemical engineering chemistry Catalyst Electrical engineering. Electronics. Nuclear engineering SCR H2- TPR medicine.drug |
| Zdroj: | Journal of Applied Science & Process Engineering, Vol 1, Iss 1 (2014) |
| ISSN: | 2289-7771 |
| DOI: | 10.33736/jaspe.157.2014 |
| Popis: | This study investigates the potential of bimetal impregnated catalysts supported on activated carbon derived from biomass for Selective Catalytic Reduction (SCR) of Nitrogen Oxides (NOx) with ammonia (NH3). The bimetal catalysts, Copper-Manganese (Cu-Mn) was deposited onto palm kernel shell (PKS) and coconut shell (CS) via impregnation method and calcined at 250 °C. Hydrogen Temperature-programmed reduction analysis (H2-TPR) using 5% Hydrogen gas (H2) in Argon (Ar) have been carried out to study the effect of different variables such as metal impregnation and support properties on the reduced states of the catalysts. Besides, FTIR, TGA and XRD were also used to characterize the catalysts. It was observed that impregnation of bimetals enhanced the catalyst characteristics where include important results from FTIR, TGA, XRD and H2-TPR. Based on the results presented in H2-TPR analysis, it was observed that the reduction peak of bimetal catalysts deposited on palm kernel shell activated carbon shifted to high temperature, about 597 °C. This demonstrates the intensity of the precursor interaction exists and a higher dispersion of bimetals on the surface of the support. In addition, the higher dispersion of bimetals was shown in XRD analysis. Hence, palm kernel shell-derived catalysts could be new and promising catalysts in SCR system. |
| Databáze: | OpenAIRE |
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