Copper-chromite glass fiber catalyst and its performance in the test reaction of deep oxidation of toluene in air
| Autor: | Dmitry Baranov, Sergey Lopatin, Sergey Zazhigalov, Danil Pisarev, Andrey N Zagoruiko, Tatyana V. Larina, Pavel Mikenin, Andrey Elyshev, Svetlana V. Cherepanova |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Catalyst support Spinel Glass fiber Copper chromite 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Toluene Catalysis 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Mass transfer engineering Organic chemistry Physical and Theoretical Chemistry 0210 nano-technology Porosity |
| Zdroj: | Reaction Kinetics, Mechanisms and Catalysis. 120:247-260 |
| ISSN: | 1878-5204 1878-5190 |
| DOI: | 10.1007/s11144-016-1089-3 |
| Popis: | The paper is dedicated to the novel glass-fiber catalysts (GFC) using copper chromite as an active component for the reaction of deep oxidation of hydrocarbons and volatile organic compounds (VOCs). The catalyst support is the glass microfibrous fabric preliminarily modified by the addition of an external layer of silica secondary porous support. Surface thermosynthesis was applied for manufacturing of such catalysts. XRD and UV–Vis DRS studies have demonstrated that the active component in the synthesized GFCs is CuCr2O4 in the structural type of partially inverted spinel. As shown in experiments with the deep oxidation of toluene in air, the specific activity of CuCr2O4/GFC per unit mass of the active component exceeds that of the similar conventional CuCr2O4/Al2O3 catalyst by up to 20–30 times. Such significant rise is explained by both the much more efficient mass transfer in GFC cartridges and the higher intrinsic activity of the copper chromite in the GFC, where the particles of CuCr2O4 have the typical size of 10–25 nm compared to >100 nm in case of conventional alumina catalyst. The proposed GFC looks promising for the abatement of hydrocarbons and VOCs in different waste gases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink