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Aviko Rixona

Hot flue gas from a biogas co-fired steam boiler is used to preheat combustion air to 120 °C
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Flue gas cooled to 80 °C

130 kW heat recovery

Reduction of 220 tCO2 per year

Heat recovery from Steam boiler

Aviko Rixona is active in the potato processing industry and ambitious to reduce their CO2 footprint. Their steam boiler is co-fired with biogas. Due to the sulphur being present in the biogas, heat recovery on the flue gas of the boiler was deemed to be impossible due to corrosion issues.

HeatMatrix polymer APH

HeatMatrix designed, engineered and installed the polymer air preheater. The corrosion resistant properties of the polymer make it possible to cool the flue gas through the acid dew point. This enables further heat recovery on the steam boiler.

Flue gas temperature reduced to 80 °C

The temperature of the flue gas of the steam boiler was successfully reduced from 170 to 80 °C. Combustion air was heated from 15 to 120 °C. No corrosion issues were observed after installation of the heat exchanger, not even in the downstream carbon steel ducting and stack.

Specifications

Solution has a duty of 130 kW
Boiler capacity 5.5 MW
Flue gas flow 4,600 kg/hr
Temperature flue gas flow 170 °C
Installed system HeatMatrix polymer APH

No corrosion and fouling problems

""The HeatMatrix polymer APH makes the process more sustainable. The efficiency of the RTO increases without corrosion and fouling issues"."
Waste ProcessorMaintenance Manager
Waste Processor

For more than 10 years we design and deliver heat recovery systems for industrial factories

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