To make viable the large-scale use, generation of hydrogen locally from the petroleum-derived fuels such as gasoline is an attractive way because of the existing production, distribution, and retailing infrastructure. The present work is centered on the syngas formation from gasoline. The thermodynamic equilibrium restrictions on the gasoline reforming process in comparison with isooctane and methane are discussed on the basis of multi-component calculations. To perform the thermodynamic modelling, the real fuel containing 191 hydrocarbon species was specified as an equilibrium distribution of 29 close-cut fractions C-3-C-10 with well-defined properties. The thermodynamic predictions are in a good correlation with the experimental data obtained in a nearly adiabatic monolith reactor. (c) 2007 Elsevier B.V. All rights reserved.