Gasifier design and internal layout
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I have a question for the experts here. I am conducting research on the structural design of sludge fluidized bed gasification furnaces. I would like to know that if the operating temperature I design is 850°C, is it necessary to install heat-exchanging surfaces such as embedded tubes or water walls inside the furnace, or is it sufficient to arrange cooling devices for the gasified gas only at the rear part of the furnace? I’ve seen some information stating that the reaction temperature is adjusted by the ratio of the amount of material fed into the furnace to the air equivalent. If it needs to be arranged, won’t the reaction temperature not be achieved? How to determine the operating temperature when no heating surfaces are installed in the furnace? And if such surfaces are installed, how can the reaction temperature be maintained around 850? Thank you very much
This question is too technical; is it used in environmental protection equipment?
The gasification furnace is equipped with water-cooled walls, and a wear-resistant coating is applied to the outside of these walls. The temperature in the gasification furnace depends on the feed material and oxygen that are supplied
Thank you for your reply. If water-cooled walls are added, the temperature inside the furnace will definitely drop, right? Will that have an impact on the gasification reaction?
That amount of heat is too little; it’s only enough to ensure the safety of the furnace walls
The treatment efficiency of the sludge fluidized bed is estimated to be relatively low; how can the value of residual carbon be ensured?
Well, after all, the calorific value is relatively low. How exactly is it ensured that the residue content remains at a certain level? (I’m a beginner; please forgive me.)
How much heat can be released by burning sludge, and is it sufficient to maintain its continuous combustion?
It means that the fixed carbon content in the ash produced is high