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In this work, the results obtained for Ni-La-Al catalysts developed in our laboratory for biogas reforming are presented. The catalyst 5% Ni/5% La₂O₃-γ-Al₂O₃ has operated under kinetic control conditions for more than 40 h at 700 °C and feeding CH₄/CO₂ ratio 1/1, similar to the composition presented in biogas streams, being observed a stable behaviour.

Reaction parameters studied to evaluate the catalyst activity were H₂/CO and CH₄/CO₂ conversion ratio obtained. On the basis of a CH₄ conversion of 6.5%, CH₄/CO₂ conversion ratio achieved 0.48 and H₂/CO ratio obtained was 0.43. By comparison of experimental results to equilibrium prediction for such conditions, is detectable a lower progress of reverse water gas shift reaction. This fact increases the H₂/CO ratio obtained and therefore the hydrogen production. The higher H₂/CO and a CH₄/CO₂ conversion ratio in comparison to CH₄ one close to …