Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts
Bimetallic catalysts have been investigated over the CO2 dry reforming of methane. Two types of catalyst system are being studied in this research project - the influence of molybdenum additive on Ni/SiO2 prepared by wet co-impregnation and the incorporation of Zr cations into Ni-MCM-41 prepared...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2009
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| Online Access: | http://hdl.handle.net/10356/16511 |
| _version_ | 1811680971623235584 |
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| author | Toh, Serene York Ling. |
| author2 | Yang Yanhui |
| author_facet | Yang Yanhui Toh, Serene York Ling. |
| author_sort | Toh, Serene York Ling. |
| collection | NTU |
| description | Bimetallic catalysts have been investigated over the CO2 dry reforming of methane. Two
types of catalyst system are being studied in this research project - the influence of
molybdenum additive on Ni/SiO2 prepared by wet co-impregnation and the incorporation
of Zr cations into Ni-MCM-41 prepared by hydrothermal synthesis. The fresh and spent
catalysts were also characterized by XRD, Raman spectra and TG-DTA. The result
indicated that the addition of Mo improves the catalyst stability compared to unmodified
Ni catalyst but has detrimental effect on catalytic activity. The improved catalytic
stability by the modified Ni/SiO2 was most probably due to the reduced carbon formation
on the catalyst. In the case of Ni-Zr MCM-41 series, they give comparable or even better
catalytic activity and stability than Ni-MCM-41, and the improved catalytic performance
is suggested with the highly stabilized metal dispersion of the active sites as well as the
facilitation of the anchoring effect provided by the Zr ions. 2Ni-2Zr has the best
performance in terms of catalytic activity and stability and the Ni-Zr series proved to be
the promising catalysts for CO2 reforming of methane. Possible future studies can be
done on the addition of Mo metal as promoter due to its redox properties in reducing
carbon formation. |
| first_indexed | 2024-10-01T03:33:32Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/16511 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:33:32Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/165112023-03-03T15:33:39Z Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts Toh, Serene York Ling. Yang Yanhui School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering::Chemical processes Bimetallic catalysts have been investigated over the CO2 dry reforming of methane. Two types of catalyst system are being studied in this research project - the influence of molybdenum additive on Ni/SiO2 prepared by wet co-impregnation and the incorporation of Zr cations into Ni-MCM-41 prepared by hydrothermal synthesis. The fresh and spent catalysts were also characterized by XRD, Raman spectra and TG-DTA. The result indicated that the addition of Mo improves the catalyst stability compared to unmodified Ni catalyst but has detrimental effect on catalytic activity. The improved catalytic stability by the modified Ni/SiO2 was most probably due to the reduced carbon formation on the catalyst. In the case of Ni-Zr MCM-41 series, they give comparable or even better catalytic activity and stability than Ni-MCM-41, and the improved catalytic performance is suggested with the highly stabilized metal dispersion of the active sites as well as the facilitation of the anchoring effect provided by the Zr ions. 2Ni-2Zr has the best performance in terms of catalytic activity and stability and the Ni-Zr series proved to be the promising catalysts for CO2 reforming of methane. Possible future studies can be done on the addition of Mo metal as promoter due to its redox properties in reducing carbon formation. Bachelor of Engineering (Chemical and Biomolecular Engineering) 2009-05-26T09:09:22Z 2009-05-26T09:09:22Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/16511 en Nanyang Technological University 52 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Chemical engineering::Chemical processes Toh, Serene York Ling. Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title | Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title_full | Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title_fullStr | Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title_full_unstemmed | Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title_short | Dry reforming of methane over Ni/SiO2 and Ni-Mo/SiO2 catalysts |
| title_sort | dry reforming of methane over ni sio2 and ni mo sio2 catalysts |
| topic | DRNTU::Engineering::Chemical engineering::Chemical processes |
| url | http://hdl.handle.net/10356/16511 |
| work_keys_str_mv | AT tohsereneyorkling dryreformingofmethaneovernisio2andnimosio2catalysts |