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Abatement of Toluene Using a Sequential Adsorption-Catalytic Oxidation Process: Comparative Study of Potential Adsorbent/Catalytic Materials
| Content Provider | MDPI |
|---|---|
| Author | Axel, Löfberg Sonar, Shilpa Giraudon, Jean-Marc Veerapandian, Savita Kaliya Perumal Bitar, Rim Leus, Karen Voort, Pascal Van Der Lamonier, Jean-François Morent, Rino Geyter, Nathalie De |
| Copyright Year | 2020 |
| Description | A novel strategy for toluene abatement was investigated using a sequential adsorption-regeneration process. Commercial Hopcalite (CuMn2Ox, Purelyst101MD), Ceria nanorods, and UiO-66-SO3H, a metal–organic framework (MOF), were selected for this study. Toluene was first adsorbed on the material and a mild thermal activation was performed afterwards in order to oxidize toluene into CO2 and H2O. The materials were characterized by XRD, N2 adsorption-desorption analysis, H2-TPR and TGA/DSC. The best dynamic toluene adsorption capacity was observed for UiO-66-SO3H due to its hierarchical porosity and high specific surface area. However, in terms of balance between storage and catalytic properties, Hopcalite stands out from others owing to its superior textural/chemical properties promoting irreversible toluene adsorption and outstanding redox properties, allowing a high activity and CO2 selectivity in toluene oxidation. The high conversion of toluene into CO2 which easily desorbs from the surface during heating treatment shows that the sequential adsorption-catalytic thermal oxidation can encompass a classical oxidation process in terms of efficiency, CO2 yield, and energy-cost saving, providing that the bifunctional material displays a good stability in repetitive working conditions. |
| Starting Page | 761 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal10070761 |
| Journal | Catalysts |
| Issue Number | 7 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-07-08 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Engineering Adsorption Catalytic Oxidation Sequential Adsorption-thermal Oxidation Toluene Abatement Hopcalite Nanorod Ceria Uio-66-so3h |
| Content Type | Text |
| Resource Type | Article |