A device for utilizing the waste heat of a thermo-process device comprising a first heat exchanger for transferring heat from a heat flow of a thermo-process device to a heat transfer medium; a second heat exchanger for transferring heat from the heat flow to a heat transfer medium, the second heat exchanger being arranged downstream of the first heat exchanger with respect to the heat flow; a thermodynamic cycle device having a third heat exchanger for transferring heat from the heat transfer medium to a working medium of the thermodynamic cycle device and having a fourth heat exchanger for transferring heat from the heat transfer medium to the working medium, the fourth heat exchanger being arranged upstream of the second heat exchanger with respect to the flow of the working medium; wherein heat transfer medium cooled in the third heat exchanger can be supplied at least partially to the first heat exchanger for heating and wherein heat transfer medium cooled in the fourth heat exchanger can be supplied at least partially to the second heat exchanger for heating.