Patent ID: 11913360
Assignee: RWE POWER AKTIENGESELLSCHAFT
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method for operating a power plant for generating electrical energy for delivery to at least one consumer by combustion of a carbonaceous combustible, carbon dioxide being separated from the flue gas of the power plant, the separated carbon dioxide being converted at least in part into a fuel, the method comprising:
combusting the fuel at least temporarily in at least one heat engine so as to form a waste gas having a thermal energy, wherein the heat engine comprises a diesel engine and/or an Otto engine;
generating electrical energy by the at least one heat engine and delivering the electrical energy to the at least one consumer, wherein at least some of the thermal energy of the waste gas formed by the at least one heat engine is used in at least one of the following processes:
a) heating a combustion air of the power plant;
b) heating a process medium of the power plant;
c) drying of the carbonaceous combustible used in the power plant; and
d) separating carbon dioxide from the flue gas of the power plant;
and
mixing the waste gas of the heat engine with the flue gas of the power plant after the at least some of the thermal energy of the waste gas is used in at least one of processes a) through d) above;
wherein carbon dioxide is separated from the mixture of the waste gas and the flue gas and converted at least in part into the fuel.