Questions about catalytic cracking units?
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What is the difference in the condition of the catalyst inside the settler during catalyst switching-on in a catalytic cracking unit, compared to the condition of the green catalyst inside the settler during normal operation (with oil and gas present)? Could the expert please describe it?
During normal production, there is more catalyst carbon deposition; the settling speed of the catalyst in the settler during normal production should be faster than when it is in motion~~~~~