Abstract
Hydrogen production by steam reforming of methane over a mixed Ni/MgAl+CrFe3O4 catalyst was performed. The catalyst was prepared by physically mixed method and it was compared to the iron and chromium promoted Ni/MgAl catalyst prepared by impregnation method. The prepared catalysts were characterized by various analytical techniques such as nitrogen physisorption, TPR XRD, TGA and SEM. The catalytic activity over a fixed-bed reactor(ID=0.5 inch) was investigated at a temperature range of 700-500°C, 1 bar pressure and feed molar ratio of H2O/CH4 = 2. It was found that the physically mixed catalysts showed higher hydrogen selectivity and methane conversion than the iron and chromium promoted Ni/MgAl catalyst because of activating CrFe3O4 by steam. It was considered that there was no decrease in the reducibility of active Ni phase of Ni/MgAl catalyst by adding of CrFe3O4 as WGS catalyst and it enhancing the catalytic performance.
| Original language | English |
|---|---|
| Title of host publication | 20th World Hydrogen Energy Conference, WHEC 2014 |
| Publisher | Committee of WHEC2014 |
| Pages | 340-346 |
| Number of pages | 7 |
| Volume | 1 |
| ISBN (Print) | 9780000000002 |
| Publication status | Published - 2014 |
| Externally published | Yes |
| Event | 20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju, Korea, Republic of Duration: 2014 Jun 15 → 2014 Jun 20 |
Other
| Other | 20th World Hydrogen Energy Conference, WHEC 2014 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Gwangju |
| Period | 14/6/15 → 14/6/20 |
Keywords
- Hydrogen production
- Hydrotalcite catalyst
- Steam reforming
- WGS reaction
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
