Hydrogen from ethylene glycol by supercritical water reforming supported noble and base metal catalysts

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Vlieger, D.J.M. de and Chakinala, A.G. and Lefferts, L. and Kersten, S.R.A. and Seshan, K. and Brilman, D.W.F. (2012) Hydrogen from ethylene glycol by supercritical water reforming supported noble and base metal catalysts. Applied catalysis B: environmental, 111-112 . 536 - 544. ISSN 0926-3373

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Abstract:Catalytic reforming of ethylene glycol (5 and 15 wt%) in supercritical water (450 °C and 250 bar) in the presence of alumina supported mono- and bi-metallic catalysts based on Ir, Pt and Ni was studied. Pt catalyst showed the highest hydrogen yields compared to Ir and Ni. Varying the Pt loading (0.3–1.5 wt%) showed that the intrinsic reforming activities improved with decreasing Pt loadings. However, a lower Pt loading had a large negative effect on the H2 selectivity and catalyst stability. It was found that the presence of Ni in a Pt–Ni bimetallic catalyst improved hydrogen yields by suppressing methane formation. Moreover, the presence of Ni also enhanced catalyst stability. Results reported here were obtained at WHSV of 18 h−1. The Pt–Ni/Al2O3 having a total metal loading of 1.5 wt% (molar ratio Pt:Ni = 1), is identified as a promising catalyst for the reforming of ethylene glycol in supercritical water and may prove suitable for various other SCWG applications
Item Type:Article
Copyright:© Elsevier
Faculty:
Science and Technology (TNW)
Link to this item:http://purl.utwente.nl/publications/81753
Official URL:http://dx.doi.org/10.1016/j.apcatb.2011.11.005
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Metis ID: 282156