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In Situ Reduction of a CuO/ZnO/CeO2/ZrO2Catalyst Washcoat Supported on Al2O3Foam Ceramic by Glycerol for Methanol Steam Reforming in a Microreactor
- Source :
- Industrial & Engineering Chemistry Research; 20210101, Issue: Preprints
- Publication Year :
- 2021
-
Abstract
- A CuO/ZnO/CeO2/ZrO2catalyst slurry was prepared by mixing the catalyst powder, a polyvinyl alcohol aqueous solution, and glycerol. The slurry was coated on a Al2O3foam ceramic support via a dip-coating method. The conventional prereduction treatment of a Cu-based catalyst by H2was replaced by in situ reduction of the catalyst by glycerol at a low temperature of 220 °C during the loading process, thus the integration of catalyst loading and reduction was achieved. The effects of the glycerol/catalyst weight ratio and the deposition number on the physicochemical properties of the prepared catalyst and the washcoat were systematically investigated. Results showed that the optimal glycerol/catalyst weight ratio led to a complete reduction of CuO with a small amount of residual carbon. A methanol steam reforming microreactor with the Al2O3ceramic support prepared under an appropriate deposition number exhibited a 94% methanol conversion rate and a 0.15 mol/h H2yield at 360 °C.
Details
- Language :
- English
- ISSN :
- 08885885 and 15205045
- Issue :
- Preprints
- Database :
- Supplemental Index
- Journal :
- Industrial & Engineering Chemistry Research
- Publication Type :
- Periodical
- Accession number :
- ejs56823440
- Full Text :
- https://doi.org/10.1021/acs.iecr.1c01180