Flue gas treatment as a means of industrial heat recovery
Energy recovery from polluted flue gases concerns a large number of industries that emit waste heat, particularly in the food industry (ovens, frying, cooking, drying), the materials industry (lime, tiles and bricks, insulation, glass) and the metal and mechanical engineering industries (painting lines, smelting, heat treatment).
This study presents the state of the art in flue gas treatment solutions alone, but also in treatment solutions that include heat recovery.The focus is on seven exchanger technologies, the advantages and disadvantages of which have been summarised in technology sheets. Some have already been analysed in previous ALLICE work, while three are the subject of new sheets for in-depth evaluation :
- Exchanger cascade with flue gas treatment
- Glass exchangers for acid gases
- Polymer exchangers for low temperature polluted flue gases
In order to enrich these sheets with data from the actual operation of flue gas treatment systems, the study includes three feedback:
- Flue gas treatment and heat recovery in an oil/natural gas refinery
- Flue gas treatment with heat recovery in the brick industry
- Flue gas treatment with heat recovery in a waste incineration plant
