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Heat recovery through the acid dew point from flue gas of a fired heater resulted in an increase in furnace efficiency of 4%.
The refinery wants to decrease the carbon footprint of their operations. To reach this target waste heat recovery is one of their key focus areas. Currently a lot of heat is being lost via the stack with the potentially corrosive flue gas. Our customer wanted to recover a part of this heat.
Before no heat recovery was performed because of the corrosive nature of the flue gas. When the flue gas is cooled, sulphuric acid is formed and corrosion occurs inside the heat recovery system. The HeatMatrix polymer air preheater was selected because it can handle the formed sulphuric acid and makes additional heat recovery possible.
After the HeatMatrix polymer air preheater was installed, furnace efficiency increased by 4%. Corrosion rates downstream of the heat recovery system remained below 0.1 mm/year.
Our process engineers assess the technical feasibility of additional heat recovery on your Fired Heater, or any other thermal process. Your potential reduction in CO2 emissions, energy consumption and costs is determined by our experts.