Economizers on Fired Heaters

Figure 3200-5 illustrates how economizers can reduce fired heater flue gas temperatures from a range of 700°F to 1200°F to the range of 300°F to 700°F.

The flue gas outlet temperature depends on:

• The pressure of the steam generated in the economizer, and
• The need to burn higher sulfur fuels as a back-up in the future. Lower temperatures could cause corrosion in the cold end of the waste heat recovery equipment.

Typical Fired Heater Economizer

12. June 2018 by sam
Categories: Waste Heat Recovery | Leave a comment

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