Method of burning fossil fuels in steam generator using oxy-fuel process, by using waste gas to preheat oxygen used in combustion

摘要

The oxygen used in the combustion of the fossil fuels is preheated by being used to cool the waste gas. The quantity of recirculated waste gas is increased. A gas-tight heat exchanger is used for preheating the oxygen, e.g. a plate- or pipe-based heat exchanger.