Preparing synthetic fuels constituted of hydrocarbons partially oxygenated, of a molecular weight of greater than 100 comprises: subjecting a previously compressed reaction gas mixture containing carbon and hydrogen to the effect of catalyzing electric discharge carried out inside a reaction chamber maintained at pressures of 50-300 bars and temperatures of 200-500[deg] C; and cooling and extracting the traces of deadly carbon appearing as nanostructured form in the fuels from the reaction chamber. An independent claim is included for products obtained from the process, where the produced fuels are mainly constituted of partially oxygenated heavy hydrocarbons for combustion, carburization or as industrial raw material, and as fossil fuels.
