The crude gasoline produced in catalytic refining is left for an extended period, changes color, and is then reprocessed
Thread Content
The tank area stores 15,000 tons of catalytic gasoline, which has changed color due to long-term storage; therefore, reprocessing is necessary. I would like to ask where in the catalytic cracking unit it would be appropriate to carry out this reprocessing? Is there a specific reprocessing procedure?
In my opinion, if it goes into catalytic reprocessing, directly feeding it into the distillation column for reprocessing can solve the problem of discoloration.
Going into the fractionation tower, the route for reprocessing light contaminated oil should work
Generally, there are two routes for reprocessing: 1) the terminator enters the lift pipe; 2) it passes through cold reflux to enter the top circulation tower and then the distillation tower
The effects of cold return flow and top-up circulation pump inlet should be the same
That’s for sure; in the end, it all ends up in the distillation tower
This post was last edited by Refiner on 2017-8-21 at 14:09. A layperson asks here: Could it be due to oxidation? Would it work to add a small amount of a strong oxidizing agent during storage?
Then the specifications of the gasoline delivered externally might not meet the requirements. It’s also very difficult for stable gasoline, which does not oxidize or change color, to leave the factory in that form