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Add anti-coking agent to the catalytic reaction system

2009-05-22View Original

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May I ask: Does the catalytic cracking reaction system have anti-coking agents added, and what are the models used? How effective is it? Which area should be injected?
Reply #22009-05-22
Yes, there are many models available. The effect is better than when it’s not used; it needs to be injected before entering the reactor
Reply #32009-05-22
Personally, I think anti-scorch agents don’t have much effect
Reply #42009-05-22
Does the anti-sticking steam not work where you are? Under normal circumstances, there is no need to add an anti-scorching agent; the 3 units here, as well as some similar installations I have been to, also do not use one! Coking should be avoided or reduced through operational and raw material analysis!
Reply #52009-05-22
We have been using catalytic cracking anticoking agents, and their performance is quite good. We prepare them in chemical agent tanks and then feed them into the slurry extraction point using metering pumps, where they are injected into the bottom of the distillation tower through the slurry circulation system.
Reply #62009-05-22
The original poster is asking about a reaction system, but yours is a distillation system! By your words, we call it a scale inhibitor here!
Reply #72009-05-22
It seems that there is never an end to what one can learn; only by seeing catalyst reactions combined with anti-coking agents did I realize that such technologies exist. But personally, I feel it might not be very meaningful. At such high temperatures, ordinary compounds decompose. As long as the line speed is maintained, the catalyst is properly separated, and attention is paid to insulating large oil and gas lines, coking can still be reduced.
Reply #82009-05-23
The effect is good; by applying it in front of the nozzle, it effectively alleviates the coking problems in the lift pipe, settler, and oil-gas main pipes.
Reply #92009-05-23
The effect is good; by applying it in front of the nozzle, it effectively alleviates the coking problems in the lift pipe, settler, and oil-gas main pipes. wgfhao posted on 2009-5-23 09:00 [/quot Is it used together with a passivator, or has the injection of the passivator been discontinued, or does the anti-coking agent used have a passivating effect? How is the quantity determined?
Reply #102011-07-11
I’m paying attention to this issue – why hasn’t anyone replied?

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