Vacuum Fluidized Bed Technology

These constructive and control system modifications lead to higher investment costs compared to normal pressure fluidized bed plants. Furthermore the circulating as well as permanent heating and cooling of the inert gas cause rather high operating costs. 

The main feature of this unique technique is the operation of a fluidized bed plant at low vacuum conditions. Inertization is not required due to the operation below the minimum ignition pressure. Compared to closed-loop fluidized bed plants, there are many advantages in terms of economic efficiency, ecology and safety aspects  

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