Abstract: The invention relates to a method for operating a power plant (1) for generating electrical energy for delivery to at least one consumer (16) by combustion of a carbonaceous combustible, wherein carbon dioxide (19) is separated from the flue gas (7) of the power plant (1), the separated carbon dioxide (19) is converted at least in part into a fuel (20), characterized in that the fuel (20) is combusted at least temporarily in at least one heat engine (4) so as to form a waste gas (8), and electrical energy is generated by the heat engine (4) and is delivered to at least one consumer (16), at least some of the thermal energy of the waste gas (8) being used in at least one of the following processes: a) for heating combustion air (10) of a power plant (1); b) for heating a process medium (14) of the power plant (1); c) in a drying of the combustible of the power plant (1); and d) in carbon dioxide separation.

Abstract: The invention relates to a method for operating a power plant (1) for generating electrical energy for delivery to at least one consumer (16) by combustion of a carbonaceous combustible, wherein carbon dioxide (19) is separated from the flue gas (7) of the power plant (1), the separated carbon dioxide (19) is converted at least in part into a fuel (20), characterized in that the fuel (20) is combusted at least temporarily in at least one heat engine (4) so as to form a waste gas (8), and electrical energy is generated by the heat engine (4) and is delivered to at least one consumer (16), at least some of the thermal energy of the waste gas (8) being used in at least one of the following processes: a) for heating combustion air (10) of a power plant (1); b) for heating a process medium (14) of the power plant (1); c) in a drying of the combustible of the power plant (1); and d) in carbon dioxide separation.

Abstract: The invention relates to a process for removing mercury from flue gases from combustion plants, wherein the process comprises providing an adsorbent based on carbon, producing an aqueous suspension comprising the adsorbent, introducing the suspension into the flue gas stream from the combustion plants into the dry gas phase of the flue gas which is undersaturated with water vapor and loading the adsorbent with mercury over a predetermined reaction path, keeping the mercury-laden adsorbent out of the flue gas stream and landfilling or regenerating the mercury-laden adsorbent.

Abstract: The invention relates to a process for removing mercury from flue gases from combustion plants, wherein the process comprises providing an adsorbent based on carbon, producing an aqueous suspension comprising the adsorbent, introducing the suspension into the flue gas stream from the combustion plants into the dry gas phase of the flue gas which is undersaturated with water vapor and loading the adsorbent with mercury over a predetermined reaction path, keeping the mercury-laden adsorbent out of the flue gas stream and landfilling or regenerating the mercury-laden adsorbent.

Abstract: The invention relates to a method and to a system for gas scrubbing of aerosol-containing process gases using an amine-containing solvent as scrubbing agent, which is brought into contact with the process gas in an absorber column (9) and which is regenerated in a desorber column (13) and after cooling is delivered to the absorber column (9) again. The water vapor concentration of the process gas which is not saturated with water vapor is increased with water before the gas scrubbing in the absorber column (9), preferably to a degree of saturation of >0.8, such that water is condensed out of the gas phase on aerosol particles contained in the process gas, and in a following method step the aerosol particles which have grown in size are precipitated out of the process gas before the gas scrubbing.

Abstract: The invention relates to a method and to a system for gas scrubbing of aerosol-containing process gases using an amine-containing solvent as scrubbing agent, which is brought into contact with the process gas in an absorber column (9) and which is regenerated in a desorber column (13) and after cooling is delivered to the absorber column (9) again. The water vapour concentration of the process gas which is not saturated with water vapour is increased with water before the gas scrubbing in the absorber column (9), preferably to a degree of saturation of >0.8, such that water is condensed out of the gas phase on aerosol particles contained in the process gas, and in a following method step the aerosol particles which have grown in size are precipitated out of the process gas before the gas scrubbing.