(57) The invention relates to a method for energy recovery after combustion of solid combustible
material, for example solid waste material. In the method, the cooling of flue gas,
which flue gas is obtained by combustion of solid combustible material, is carried
out in two steps, wherein in a first step the flue gas is cooled to a temperature
of 620 to 680 °C via radiant heat transfer and in a second step the flue gas is further
cooled by convection heat transfer with water to a temperature of at most 250°C, through
which convection heat transfer a heating of water to saturated steam and subsequently
to superheated steam is also carried out, which superheated steam is used as such
for energy-demanding processes and/or is used for converting the superheated steam
into electricity.
The invention also relates to a device for energy recovery after combustion of solid
combustible material.
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