New technologies in the startup and operation of catalytic cracking units
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****During the commissioning of a catalytic cracking unit, the flue gas from the regenerator can be fed into the catalyst tank to preheat the balance agent； In this way, during the charging process, it is possible to reduce the amount of fuel injected into the regenerator; furthermore, it enables the bed temperature of the regenerator to rise rapidly, thereby shortening the charging time and consequently the startup time. Are there any other new technologies?
The catalyst in the catalyst tank is in a non-flowing state; how can it be preheated?