Effect of using unconverted diesel from diesel hydrocracking as feedstock for catalytic cracking
Thread Content
We plan to build a catalytic cracking unit with a capacity of 4 million tons, of which 440,000 tons will be unconverted diesel derived from diesel hydrocracking. I would like to ask about the crackability of this unconverted diesel; many people say that it is not easy to crack. At the same time, this type of oil has poor quality and is difficult to sell.
Diesel is no longer easy to sell, so we plan to reprocess it into hydrogenated diesel; the pipelines have also been installed. Raw materials containing a high amount of aromatic hydrocarbons that are difficult to crack cannot be considered good raw materials.
If a 400W catalyst can be used, the conditions should be good enough. Was no relevant assessment conducted before designing this?
The unconverted oil has a high aromatic content, and it’s also necessary to consider the performance of the catalyst used in the catalysis process.
Where? Getting ready to use such a large catalyst!
Re-refining is better! Basically, it’s caused frustration! The cracking performance is poor!
I asked three director-level managers in charge of catalytic cracking, and none of them are optimistic about these 440,000 tons of catalyst cracking material; they’re not sure whether some pre-treatment such as hydrogenation could be carried out first
Refining hydrogenated diesel is not as good as simply refining our catalytic diesel: lol
Damn, what’s the point of talking if there’s no need for processing? There’s no choice.
It’s a small place in Zhongbing Beifang; you’ve probably never heard of it