converter furnace
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Why do converter furnaces always have material entering from the top and exiting from the bottom? Why can’t it be the other way around? :P
I think it’s 1, the force that drives the gas into the converter; and 2, the catalyst packing structure. The distribution of the catalyst starts with a layer of wire mesh at the top, followed by a layer of ceramic balls, then more catalyst, again a layer of wire mesh, followed by smaller ceramic balls, and finally larger ceramic balls
1. Complete reaction 2. Based on the distribution of the catalyst
Are you trying to blow the catalyst away? Fixed-bed reactors generally have material entering from the top and exiting from the bottom, while fluidized-bed reactors have material entering from the bottom and exiting from the top. If material flows in from below and out from above, the catalyst will be blown away; you’ll then need to find a way to separate the catalyst. Moreover, the reaction will become more intense due to the longer residence time, and there are issues related to controlling the bed temperature, etc. These are things I came up with on my own – they’re not professional answers
Upflow and downflow are key operating principles of a fixed-bed reactor to prevent the catalyst from being blown away. In current conversion processes, radial reactors are used; the general principle is flow from the outside in to the inside out. As for the specific method of feeding material into the reactor, different patent holders employ different approaches – those in Nanjing generally use top-to-bottom feeding, while Anchun uses bottom-to-bottom feeding. This is usually determined by the structure of the reactor and its design concepts