4. Conclusions
We have developed models to interpret the behavior of a Nibased monolithic catalyst in the glycerol steam reforming reaction. A heterogeneous kinetic model based on a sequential reaction scheme presented reasonable adherence to the experimental results. However, an unexpected behavior was encountered for certain parameter values, which cannot be explained by conventional kinetic parasitic effects such as catalyst surface saturation or thermal runaway. This behavior deserves further investigation as it may unravel better-performing catalysts for glycerol steam reforming, a process holding great industrial interest.