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- Title
Sorption-Enhanced Steam Reforming of Glycerol over Ni-hydrotalcite: Effect of Promotion with Pt.
- Authors
Dewoolkar, Karan D.; Vaidya, Prakash D.
- Abstract
Sorption-enhanced steam reforming of glycerol (SESRG) is a promising method for the sustainable production of hydrogen (H2). In this work, composites of Ni and cationic-modified hydrotalcite (HTlc) were promoted with Pt, thus resulting in two novel hybrid materials Pt-NiMgHTlc and Pt-NiCuHTlc. Activity trials for SESRG were performed in a fixed-bed reactor in the range 673-873 K and it was found that the promotion with Pt improved H2 purity and multi-cycle durability. The best results were achieved when Pt-NiCuHTlc was employed at T=823 K: a H2 concentration of 98.7 mol % and adsorption capacity of 1.34 mol CO2/kg sorbent was achieved. When the multi-cycle performance was tested for 20 cycles, it was found that NiMgHTlc, NiCuHTlc, Pt-NiMgHTlc, and Pt-NiCuHTlc were stable for 5, 8, 13, and 18 cycles. Finally, a likely reaction pathway for SESRG over the investigated multifunctional materials was proposed.
- Subjects
SORPTION; GLYCEROLPHOSPHATE dehydrogenase; HYDROGEN production; STEAM reforming; STEAM power plants
- Publication
ChemCatChem, 2016, Vol 8, Issue 22, p3499
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.201600793