Title:
Activated Nickel-Iron Hydrotalcite Catalysts for Ethanol Steam Reforming
Author(s):
Bolshak, E., Abelló, S., Montané, D.
Document(s):
Paper
Abstract:
In this work, nickel-iron mixed oxides derived from hydrotalcite-like precursors have been evaluated in the steam reforming of ethanol for hydrogen production. Two different parameters have been studied: the influence of the nickel-to-iron ratio (from 3 to 1) and the calcination temperature of the hydrotalcite precursor (500 and 800ºC). It has been found that a higher amount of iron positively affects both activity and selectivity due to a better dispersion of metallic nickel, smaller nickel crystallites and lower carbon deposition. Also, lower calcination temperature induces the formation of a well-dispersed nickel-iron mixed oxide, while higher calcination temperature lead to spinel crystallization. The latter exhibits a decreased activity and fast deactivation. The most active and stable catalyst contained a Ni/Fe ratio of 1 after calcination at 500ºC.
Keywords:
bioethanol, catalytic conversion, hydrogen
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Biorefineries
Event:
20th European Biomass Conference and Exhibition
Session:
2CV.1.2
Pages:
1151 - 1157
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2CV.1.2
Price:
FREE
