Abstract
Effect of Pd loading to NiO-MgO solid solution was investigated on catalytic activity and inhibition of carbon deposition in oxidative steam reforming of methane. Under atmospheric pressure, Pd/Ni0.2Mg0.8O exhibited much higher methane conversion than Ni0.2Mg0.8O and Pd/MgO catalysts by the enhancement of reduction degree of Ni and the formation of Pd-Ni alloy. Under pressurized conditions, 0.1% Pd/Ni0.2Mg0.8O catalyst showed high and stable activity; and the amount of deposited carbon was negligible. In contrast, the deactivation was clearly observed over Ni0.2Mg0.8O, Pd/MgO and other Pd/Ni0.2Mg0.8O catalysts, and the deactivation rate was closely related to the amount of deposited carbon.
Original language | English |
---|---|
Pages (from-to) | 488-493 |
Number of pages | 6 |
Journal | Catalysis Communications |
Volume | 7 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2006 Jul |
Externally published | Yes |
Keywords
- Carbon deposition
- Deactivation
- Methane
- Ni
- Oxidative reforming
- Pd
- Steam reforming
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Process Chemistry and Technology