Furnace Technology
In producer gas making furnace, steam is added along with air to mainly control the

Tar content in producer gas
Fusion of coal ash & clinker formation
Temperature of producer gas
V. of producer gas

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Furnace Technology
Recuperator is

Heavier than regenerator meant for the same duty
Not used for fuel gas preheating
A continuous waste heat recovery equipment
An intermittant waste heat recovery equipment

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