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1446410 
Journal Article 
Aqueous Phase Reforming of ethylene glycol - Role of intermediates in catalyst performance 
de Vlieger, DJM; Mojet, BL; Lefferts, L; Seshan, K 
2012 
Yes 
Journal of Catalysis
ISSN: 0021-9517
EISSN: 1090-2694 
Elsevier 
292 
Elsevier 
239-245 
WOS:000307091200025 
Liquid product formation during the aqueous catalytic
reforming of ethylene glycol (EG) was studied up to 450 degrees C and 250 bar pressure. Methanol,
ethanol, and acetic acid were the main liquid by-products during EG reforming in the presence of
alumina-supported Pt and Pt-Ni catalysts. The effect of these by-products on selectivity and
catalyst stability was further investigated by studying reforming of these components. Reforming
of these products was shown to be responsible for the formation of alkanes. The high
dehydrogenation activity of Pt-Ni catalysts leads to high H-2 yields during EG reforming by (i)
suppressing the formation of methane during methanol reforming (a major by-product of EG
reforming) and (ii) suppressing the formation of acetic acid. In addition, the decrease in acetic
acid formation showed a positive effect on catalyst lifetime. Acetic acid was found to be
responsible for hydroxylation of the Al2O3 support, leading to migration and coverage of the
metal particles by Al(OH)(x) and resulting in deactivation of the Pt-based catalysts. (C) 2012
Elsevier Inc. All rights reserved. 
Boehmite; Raman; FTIR spectroscopy; Deactivation; Acetic acid; Sustainable 
• Methanol (Non-Cancer)
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