【Daily Question】August 16: Tail combustion in catalytic cracking regenerator
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One daily activity question (single-choice question): Among the following options, which one can cause tail burning in the regenerator? ( ) A. The temperature of the regenerated dense phase is high, resulting in incomplete combustion. B. The amount of material in the regenerated dense phase is high. C. Too much oxidizer is added. D. Improper adjustment of the main air flow during the phase of dealing with carbon accumulation. Answer: D, improper adjustment of the main air flow during the phase of dealing with carbon accumulation. A necessary condition for tail combustion is the presence of CO in the flue gas, as well as an excess of oxygen. The first two options have less excess oxygen in the flue gas, while the third option is a method to eliminate afterburning. Everyone is encouraged to participate actively for prizes. +5 points for correct answers, +2 points for participation. One time per person only. Close this topic in two days.
A. The temperature of the regenerated slurry is high, resulting in incomplete combustion
C. Too much oxidizer was added. . . . . . . . .
Choose D: Improper adjustment of the main air flow in the later stage of carbon accumulation handling
D. Improper main air adjustment in the later stage of carbon accumulation handling
D. Improper main air adjustment in the later stage of carbon accumulation handling
D. Improper main air adjustment in the later stage of carbon accumulation handling
Selection: D, Improper adjustment of main air flow in the later stage of carbon accumulation treatment
B. The regenerative dense-phase reserve is high. ---------------------------
D. Improper main air adjustment in the later stage of carbon accumulation handling