| 摘要 |
Heat can be recovered from hot gas produced in a thermal reactor ( 1 ), by injecting water into the gas at one or more injection zones (4) in such an amount and in such a way that the gas temperature due to water evaporation is reduced to below 400° C, preferably below 300° C, possibly below 150-200 ° C, and the gas dew point becomes at least 60 °C, preferably at least 70 °C, possibly 80 or 85 °C. The gas can then be led through a condensing heat exchanger unit (8), where at least some of the gas contents of water vapour are condensed, and the condensing heat can be utilized for heating of a stream of fluid, mainly water. Hereby, a method for production of hot water is obtained, which is cheap and simple and has low maintenance costs, and which moreover has a high efficiency degree and good environmental qualities The method can be used for a broad spectrum of fuels and conversion technologies. |
