Abstracts Book - IMRC 2018

• SF3-O058
PRODUCTION OF HYDROGEN BY ETHANOL STEAM REFORMING
USING Ni-Co-HYDROTALCITE CATALYSTS STABILIZED WITH
TUNGSTEN
José Luis Contreras 1 , Anabel Figueroa 2
1 Universidad Autónoma Metropolitana, Energy, Mexico. 2 Universidad Autónoma
Metropolitana, , Mexico.
Ni-Co/Hydrotalcite-WOx catalysts showed high activity in the ethanol steam
reforming (ESR) producing H 2 , CH 4 , CO 2 , and CO. The presence of Ni and Co in
the bimetallic catalysts changed the products selectivity observed respect to the
selectivity of the monometallic catalysts. The bimetallic catalysts of Ni-Co
showed higher selectivity to H 2 than the selectivity of the monometallic Ni
catalyst. The surface area in the Ni and Co catalysts was inversely proportional
to the metals concentration. Metal oxides of Ni and Co in the bimetallic catalysts
interacted with the hydrotalcite structure, causing a partial blockage of pores,
resulting in a decrease of pore volume. The particles on the bimetallic catalysts
showed a semi-cubic shape observed instead of laminar shape typical of
hydrotalcites. By X-ray diffraction (XRD), hydrotalcite, MgNiO 2 , periclase (MgO),
κ-Al 2 O 3 and bunsenite (NiO) were identified. The bimetallic catalysts of Ni-Cohydrotalcite-WO
X showed high selectivity to H 2 and total conversion of ethanol.
The bimetallic catalysts did not produce CO.
Acknowledgment:
The authors thank to the Univesidad Autonoma Metropolitana Azcapotzalco the
material and human resources to carry out this research
Keywords: hydrogen, Ni-Co-Hydrotalcite, catalyst
Presenting authors email: jlcl@correo.azc.uam.mx