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Catalytic cracking startup additive addition time

2016-10-14View Original

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Our plant has a capacity of 500,000 tons per year; it takes about 4 hours to add the chemicals each time it starts up, and sometimes even longer. The feeding process doesn’t begin until 5 or 6 p.m., or even later. I would like to ask how long it takes to add the additive in each of your facilities, and also to hear about the amount of catalyst loss during this process.
Reply #22016-10-17
I think when I’m doing catalysis, it takes about 1 hour to seal the material leg with the catalyst; the entire process takes around 2.5 to 3 hours in total. The flow of the agent becomes normal once the material leg is sealed
Reply #32016-10-17
It usually takes 2-3 hours. Start by quickly adding the main ingredients, then step back and spray burning oil before continuing to add more.
Reply #42016-10-18
The charging time and charging rate vary significantly depending on the scale of the unit and the storage capacity of the system. In larger catalytic units, the charging rate can range from 100 to 200 tons per hour, while the time required to seal the material legs is generally between 1 and 2 hours. The overall charging time depends on the scale of the unit; higher storage capacities result in longer charging times. As for the issue of catalyst leakage from the device, it varies depending on the different settings for the centrifugation in the two units of the device; the composition of the catalyst, the time taken to load it, and the time when combustion oil is injected are all factors related to catalyst leakage.

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