Zinc oxide desulfurization reactor
Thread Content
What is the difference between the feed inlet for the zinc oxide desulfurization reaction at the top of the reactor and one at the bottom of the reactor? Are there any rules that require it to be in that place?
It’s easy to knock over the bed layer below.
Generally, it goes in from above and out from below; otherwise, the catalyst would escape
It’s better to use an inlet at the top and an outlet at the bottom; is it really necessary to have the inlet at the bottom and the outlet at the top?
Generally, it flows from top to bottom; if it flows from bottom to top, it’s easy to blow over the catalyst
No entry from below; entering from below and exiting from above can easily blow the catalyst out and into the conversion unit
It’s easier to understand if you first look at the structure of the reactor. The reactor is equipped with distribution plates, distributors, and fouling baskets; before the material enters, it must pass through these components first in order to reach the catalyst bed evenly. Therefore, there are specified requirements regarding the height of the catalyst layer. If the material enters from below, it first comes into contact with the ceramic balls, and under the impact of the material, the structure of this ceramic ball layer changes, preventing it from supporting the catalyst and leading to its loss.
Generally, gases flow in from the top and out from the bottom; of course, if the reactor is designed with flow from top to bottom, then the catalyst bed cannot also have flow in the opposite direction