How does channeling in the reactor bed form?
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This post was last edited by Final Fantasy on 2010-9-1 12:07. It is often said that if the catalyst in the reactor bed is not properly loaded during installation, channeling can occur. What exactly is channeling? How was it formed? Is channeling generated during normal operation?
Gouging generally occurs when the flow rate is very low, the pressure drop across the bed is highly uneven, or the gas supply is uneven.
Gouging tends to occur when the flow rate is low, the catalyst bed is not evenly packed with varying densities, or there are blockages, leaks, or improper installation in the liquid distributor of the packing layer.
Spray density is one of the factors that determine the wetting condition of the filler surface. If the filler surface is not wetted, it is difficult to form a liquid film, and the flowing liquid reaches the bottom of the tower directly in the form of wall flow and channel flow.