Biodiesel Reforming With A NiAl2O4/Al2O3-YSZ
Catalyst For The Production Of Renewable
SOFC Fuel
Author(s)
N. Abatzoglou, C. Fauteux-Lefebvre & N. Braidy
Abstract
Biodiesel’s contribution as a renewable energy carrier is increasing continuously.
Fuel cell market penetration, although slow, is now an irreversible reality. The
combination of solid oxide fuel cells (SOFC) with biodiesel offers considerable
advantages because it entails both high energy conversion efficiency and nearzero
atmospheric carbon emissions.
This work is aimed at proving the efficiency of a newly-developed (patent
pending), Al2O3/YSZ-supported NiAl2O4 spinel catalyst to steam reform
biodiesel. Reforming converts biodiesel into a gaseous mixture, mainly
composed of H2 and CO, used directly as SOFC fuel.
The work is performed in a test rig comprising a lab-scale, fixed-bed
isothermal reactor and a product-conditioning train. The biodiesel/water mixtures
are emulsified prior to their spray injection in the reactor preheating zone, where
they are instantaneously vaporized and rapidly brought to the desired reaction
temperature to avoid thermal cracking. Reforming takes place at gas hourly
space velocities equal to or higher than those in industrial reforming units. The
products are analysed by at-line gas chromatography.
The results show that biodiesel conversion is complete at steady state.
Thermodynamic calculations reveal that the fast reforming reaction reaches
chemical equilibrium. The catalyst’s performance is very efficient and prevents
carbon formation and deactivation.
Keywords: biodiesel, steam reforming, SOFC, nickel, spinel.
Keywords
biodiesel, steam reforming, SOFC, nickel, spinel
Related Book
Other papers in this volume
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