Is the capacity of a gasifier related to its structural dimensions?
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This post was last edited by tfx511024 on 2016-3-7 15:43. Is the capacity of a gasification furnace related to its structural dimensions? Please provide detailed explanations and discussions! A generous reward will be given!
It has the greatest relationship with the cross-sectional reaction area of the gasification furnace; of course, it is also related to the effective bed height of the gasification furnace.
This topic can be discussed in more depth; I personally believe that the size of the combustion chamber can be calculated based on the heat load that can be tolerated per unit volume.
What you say makes sense as well; the heat load is certainly determined by the amount of feedstock. In fact, it should also be related to the flow pattern and residence time in the gasifier, as these are factors that influence the conversion rate
Diameter and length (reaction space), as well as the type of reaction. Fluidized bed reactors are generally faster than fixed-bed reactors, with a much higher gas generation rate; the residence time is typically around 1-2 seconds, whereas in fixed-bed gasification reactors, the residence time is on the order of hours.
There are many factors to consider when designing a furnace, and reverse calculations are also needed for verification. Both the residence time and flow rate range can be used to back-calculate in order to determine whether the results obtained are appropriate.
Oh, I remember that the process package used to mention a height-to-diameter ratio; how is this taken into account in the design?