Process for the dissociation of alcohol fuels and recovery of waste heat for motor vehicles

摘要

A process is described for the treatment and distribution of fuel for an internal combustion engine for motor vehicles, which has the following stages: a) Evaporation of liquid alcohol with the formation of alcohol vapour; b) Providing an appreciable amount of heat from engine exhaust gas for an endothermic reactor having an endothermic dissociation catalyst contained therein; c) Contact of the vapour and the endothermic dissociation catalyst with formation of a hydrogen-rich gas/vapour mixture; d) Mixing the hydrogen-rich gas/vapour mixture with air, forming a partial combustion mixture; e) Operating an adiabatic reactor without an appreciable amount of exhaust gas heat within an operating temperature range, the adiabatic reactor containing a catalyst bed which contains a partial combustion catalyst and a dissociation catalyst; f) Contact of the partial combustion mixture and the partial combustion catalyst and the dissociation catalyst, with formation of a fuel mixture. s