Biogas fired CHP
Heat from the flue gas of a biogas fired Combined Heat and Power (CHP) installation can be used to heat water from a heating grid.


Additional heat recovery from CHP
A communal water treatment facility decided to generate electricity and heat in a CHP firing the biogas from their anaerobic treatment. The biogas contains H2S leading to corrosivity of the flue gas when it’s cooled down. This limits waste heat recovery. To make the CHP more sustainable, they aim to recover additional heat from this flue gas.
Study on additional heat recovery
HeatMatrix designed a heat recovery system to recover heat from flue gas of four parallel operating biogas engines. The flue gas is collected into one central ducting system and send through a HeatMatrix polymer economiser. In the heat exchanger the flue gas is cooled down below the acid dew point.
Corrosion free heat recovery
When the flue gas us cooled from 180 to 102 °C this results in a heat recovery of 191 kW. With this heat, 8,167 kg/hr of water can be heated from 75 to 90 °C. No corrosion will occur after installation of the heat recovery system
Specifications
Solution has a duty of | 190 kW |
Flue gas flow | 8,000 kg/hr |
Temperature flue gas flow | 180 °C |
SO2 concentration | 800 mg/Nm3 |
Proposed system | HeatMatrix Polymer Economiser |

More sustainable water purification process
"HeatMatrix helped us evaluate options to become a more sustainable communal water treatment facility. Thanks to their technical assessment, the polymer economiser became an important option to consider for future CO2 emissions reduction."
For more than 10 years we design and deliver heat recovery systems for industrial factories
Technical Assessment of your CHP
Our process engineers assess the technical feasibility of additional heat recovery on your CHP, or any other thermal process. Your potential reduction in CO2 emissions, energy consumption and costs is determined by our experts.
- Analysis of process data of your CHP
- Minimal input data required
- Business case on your savings potential
