Seeking help with regeneration issues of UOP 3.5 generation technology
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When our unit regenerates and the color changes from black to white or from white to black, the amount of air required for burning in white mode is about 200 cubic liters more than that required for burning in black mode. This is true as long as the carbon content of the catalyst to be regenerated remains unchanged for a short period of time, and the catalyst circulation rate stays stable during that time. So, where is the extra 200 cubic meters from the white cooking method used compared to the black cooking method? I would appreciate some advice from experts (should regeneration chlorine injection be enabled during boiling?). Discontinue regenerated chlorine injection or activate reformed chlorine injection during black burning)
Bro, you guys have put your equipment into use! Our facility is still under construction; I’m not quite sure about this issue. I’ll go ask my supervisor, and we can discuss it further when I have time
I think oxygen consumption occurs mainly in two aspects: a small amount of carbon in the catalyst is burned off during chlorination, and the catalyst metals are further oxidized in an oxygen-rich environment, resulting in oxygen consumption.
Here, the air flow during white firing is less than that during black firing； Have you confirmed your flow meters?
Only a very small portion of oxygen is consumed during chlorination oxidation
Do you mean that the amount of oxygen in the white-burning mode is 200 units higher than that in the black-burning mode, and this is when it has just switched from white to black or from black to white and has not yet stabilized? With all other conditions remaining unchanged, it should be more representative to wait for it to stabilize for a while before making a comparison.
Black firing, nitrogen, white firing with air.
Is it a problem with the flow meter? The orifice plate might be out of alignment