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This paper manufacturer has the ambition to make their production processes more sustainable. Their steam boiler is being co-fired with biogas. Currently, heat recovery from the flue gas of this boiler is limited due to the potentially corrosive nature of the flue gas.
Conventional metal air preheaters are not suitable for deep cooling of the flue gas because the acids in the flue gas will condense. Heat recovery through a combination of a metal and and a polymer waste heat recovery system was designed. With this system, flue gas may be cooled down through the acid dew point to preheat the combustion air.
Combustion air will be preheated from 25 to 179 °C. Thanks to the combination of a metal and a polymer air preheater, more heat can be recovered without corrosion issues.
Our process engineers assess the technical feasibility of additional heat recovery on your Steam Boiler, or any other thermal process. Your potential reduction in CO2 emissions, energy consumption and costs is determined by our experts.