Corrosion resistant flue gas heat exchanger

HeatMatrix has developed heat exchangers that are made of a corrosion resistant polymer. With these polymer heat exchangers, the industry can now recover heat from flue gas in a technically and economically sound manner.

• The Air PreHeater (APH) heats up ambient air to be used for a customer’s combustion or drying process. As a result, less fuel is needed to get the desired amount of heat.
• The Economizer (ECO) heats up water to be used as boiler feed water, process water or for a heating grid.
• The Condensor heats up a water stream using heat of condensation.

1. Recovered heat from flue gases results in energy reduction and decreases CO2 emission.
2. Polymer heat exchangers do not corrode, even when heat temperature is below the acid dew point.
3. Polymer heat exchangers have a relatively low weight, are easy to install and have low maintenance requirements.
4. The HeatMatrix ECO polymer heat exchangers can withstand flue gas temperatures up to 250 ºC.
5. The HeatMatrix APH polymer heat exchangers can withstand flue gas temperatures up to 200 ºC.
6. For higher flue gas temperature, a metal heat exchanger and polymer heat exchanger are installed in series.

The technology is applied where there is a flue- or exhaust gas.

• Processes: combustion processes and drying processes
• Installations: boilers, furnaces, ovens, dryers, CHP’s, kilns, calciners and waste incinerators
• Used fuels: natural gas, refinery gas, coal, blast furnaces gas, oil, biomass, biogas
• Industries: food & beverages, paper, (petro)chemicals, oil refineries, utilities, power plants, biomass and biogas, ceramics, steel, waste incineration and syngas production

Business case Air PreHeater Food Industry

Business case ECO for process water

• 5% CO2 reduction for combustion processes
• Saving 5% of the primary fossil fuel requirement in case of combustion processes

• Increase reliability: a polymer heat exchanger protects existing metal heat exchangers against corrosion
• Capacity increase: if combustion air is heated and an existing boiler or furnace is at its maximum capacity in terms of heat input, then in many cases the production of the existing boiler or furnace can be increased by means of hot combustion air

• Oil refineries: Repsol, MOL, PKN Orlen
• Chemicals: Lubrizol, Budenheim
• Food: Aviko Rixona, Darling Ingredients, Sonac, Merba Bakeries, AB Inbev, Carlsberg
• Industry: BMW, Dürr, Xella
• and many more