Production of CO-rich Hydrogen Gas from Glycerol Dry Reforming Over La-promoted Ni/Al2O3 Catalyst
Dry reforming of glycerol has been carried out over alumina-supported Ni catalyst promoted with lanthanum. The catalysts were characterized using EDX, liquid N2 adsorption, XRD technique as well as temperature-programmed reduction. Significantly, catalytic glycerol dry reforming under atmospheric pr...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/6156/1/Production%20of%20CO-rich%20Hydrogen%20gas%20from%20Glycerol%20Dry%20Reforming%20over%20La-promoted%20Ni-Al2O3%20Catalyst.pdf http://umpir.ump.edu.my/id/eprint/6156/7/Production%20of%20CO-rich%20Hydrogen%20gas%20from%20Glycerol%20Dry%20Reforming%20over%20La-promoted%20Ni-Al2O3%20Catalyst.pdf http://umpir.ump.edu.my/id/eprint/6156/ http://dx.doi.org/10.1016/j.ijhydene.2014.02.059 |
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| Summary: | Dry reforming of glycerol has been carried out over alumina-supported Ni catalyst promoted with lanthanum. The catalysts were characterized using EDX, liquid N2 adsorption, XRD technique as well as temperature-programmed reduction. Significantly, catalytic glycerol dry reforming under atmospheric pressure and at reaction temperature of 1023 K employing 3 wt%La–Ni/Al2O3 catalyst yielded H2, CO and CH4 as main gaseous products with H2:CO < 2.0. Post-reaction, XRD analysis of used catalysts showed carbon deposition during glycerol dry reforming. Consequently, BET surface area measurement for used catalysts yielded 10–21% area reduction. Temperature-programmed gasification studies with O2 as a gasification agent has revealed that La promotion managed to reduce carbon laydown (up to 20% improvement). In comparison, the unpromoted Ni/Al2O3 catalyst exhibited the highest carbon deposition (circa 33.0 wt%). |
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