An apparatus for setting the ignition property of at least one fuel , configured to reduce the ignition readiness by altering the chemical composition comprising • at least one fuel inlet and at least one oxidant inlet , • at least one dispersion zone for dispersing the fuel by means of at least one dispersion structure for the fuel , • at least one oxidation zone for the at least partial oxidation of the fuel , comprising at least one catalyst support with at least one catalyst, • at least one conversion zone for the catalytic and/or thermal conversion of the fuel and • at least one outlet for fuel having an altered ignition property, wherein the oxidant inlet , the catalyst support and the dispersion zone are arranged and configured in such a way that heat evolved in the oxidation zone can be transferred to a gas or gas mixture flowing into the dispersion zone , wherein the dispersion zone is configured in such way, that liquid fuel can vaporized in the dispersion zone , characterized in that the catalyst support is arranged between the dispersion structure for the fuel and oxidant inlet in such a way, that gas or gas mixture flowing out from the oxidant inlet is conducted onto the dispersion zone in such a way that it is subsequently discharged together with the fuel into the oxidation zone and/or conversion zone , wherein the catalyst support contains an open-pored structure or flow channels , which assist flow of the oxidant through to the dispersion zone. • at least one fuel inlet and at least one oxidant inlet , • at least one dispersion zone for dispersing the fuel by means of at least one dispersion structure for the fuel , • at least one oxidation zone for the at least partial oxidation of the fuel , comprising at least one catalyst support with at least one catalyst, • at least one conversion zone for the catalytic and/or thermal conversion of the fuel and • at least one outlet for fuel having an altered ignition property, wherein the oxidant inlet , the catalyst support and the dispersion zone are arranged and configured in such a way that heat evolved in the oxidation zone can be transferred to a gas or gas mixture flowing into the dispersion zone , wherein the dispersion zone is configured in such way, that liquid fuel can vaporized in the dispersion zone , characterized in that the catalyst support is arranged between the dispersion structure for the fuel and oxidant inlet in such a way, that gas or gas mixture flowing out from the oxidant inlet is conducted onto the dispersion zone in such a way that it is subsequently discharged together with the fuel into the oxidation zone and/or conversion zone , wherein the catalyst support contains an open-pored structure or flow channels , which assist flow of the oxidant through to the dispersion zone. wherein the oxidant inlet , the catalyst support and the dispersion zone are arranged and configured in such a way that heat evolved in the oxidation zone can be transferred to a gas or gas mixture flowing into the dispersion zone , wherein the dispersion zone is configured in such way, that liquid fuel can vaporized in the dispersion zone , characterized in that the catalyst support is arranged between the dispersion structure for the fuel and oxidant inlet in such a way, that gas or gas mixture flowing out from the oxidant inlet is conducted onto the dispersion zone in such a way that it is subsequently discharged together with the fuel into the oxidation zone and/or conversion zone , wherein the catalyst support contains an open-pored structure or flow channels , which assist flow of the oxidant through to the dispersion zone. <EOS>