Osman, AI;
Abu-Dahrieh, JK;
Cherkasov, N;
Fernandez-Garcia, J;
Walker, D;
Walton, RI;
Rooney, DW;
(2018)
A highly active and synergistic Pt/Mo₂C/Al₂O₃ catalyst for water-gas shift reaction.
Molecular Catalysis
, 455
pp. 38-47.
10.1016/j.mcat.2018.05.025.
Preview |
Text
Molecular Catalysis Draft BIOGO.pdf - Accepted Version Download (3MB) | Preview |
Abstract
Catalysts consisting of Pt and Cu supported on Mo2C/η-Al2O3, Mo2C/γ-Al2O3 or Mo2C were prepared and used for the low-temperature water gas shift reaction (WGSR). The catalysts were characterized by elemental analysis, powder X-ray diffraction (XRD), temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The catalysts were studied in water gas shift reaction with a reaction mixture containing 11% CO, 43% H2, 6% CO2, 21% H2O (real feed composition mixture from the reformer) and balance He, with a reaction temperature range of 180–300 °C at a space velocity (SV) of 125,000 h−1. Catalyst supports (η-Al2O3 and γ-Al2O3), led to different synergetic effect between the two most active phases of Pt metal and Mo2C. Pt/Mo2C/η-Al2O3 is a promising catalyst (44% conversion at 180 °C) due to the close interaction between Pt and Mo2C phases on the surface of the catalyst. The 4 wt% Pt-Mo2C showed the highest activity where the temperature at which 50% conversion observed was at only 180 °C with SV of 125,000 h−1 and constant stability over 85 h.
| Type: | Article |
|---|---|
| Title: | A highly active and synergistic Pt/Mo₂C/Al₂O₃ catalyst for water-gas shift reaction |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.mcat.2018.05.025 |
| Publisher version: | https://doi.org/10.1016/j.mcat.2018.05.025 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Water gas shift reaction, Molybdenum carbide, Platinum, Alumina, Syngas |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10113325 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
