FDFCC started operation
Thread Content
The new FDFCC plant is about to start operations soon. However, I’ve heard that the commissioning of several FDFCC plants in China has not gone smoothly; there hasn’t been a single case of successful commissioning yet. I’m not sure what the reasons are. Those who are aware of this situation please share their insights
The catalyst fluidization system is too complex, so of course it’s difficult to get it operational.
Where was the new FDFCC facility built? Currently, both Harbin Petrochemical’s Catalytic Unit #3 and Luoyang Petrochemical’s Catalytic Unit #2 use the FDFCC process. Since these are new facilities, you can send people there to learn from them.
It seems that there are very few FDFCC units in use domestically at the moment
We have also signed a contract with the Luoyang Institute here to build an FDFCC unit; those who are interested in this topic are welcome to share their experience
It’s actually not complicated; it just involves starting them one by one. The process of starting up is similar in every case: feed is supplied to each lift pipe separately, the differential pressure between the two reactors is adjusted, and the temperature as well as the feed rate are controlled – so there aren’t many issues
Impressive, another organization that’s been fooled, hahaha. . . The simpler the catalysis, the better; the easier it is to fluidize the catalyst, the more normal the operation, and the fewer the steps involved, the simpler and easier the operation. . . The key lies in the catalyst. . . As for other considerations, such as reducing olefins in straight-run gasoline during digestion, etc. . . Other methods can be used. . . There’s no need to keep focusing on catalyst reactors and tubular reactors. . . Haha. . . :Lol, to operate FDFCC effectively, it’s necessary for the design institute to organize a construction team and assign representatives to the site, so that they can experience what the results of their hard work look like. . . What does it taste like when everyone eats it? . . Haha. . .
The poster is from Dongming Petrochemical, right? Didn’t you send people to Unit 1 of the Changling complex to learn* from there? As for getting the FDFCC unit up and running, it’s not too difficult; fluidization also isn’t a major issue – all that’s needed is for both reaction systems to become fluidized at the same time. Feed heavy oil through the lift pipe first, and once things are stable, then feed gasoline through the lift pipe. Generally, gasoline feeding is carried out after one or two days. The subsequent steps of distillation, stabilization, and operation of the units remain largely the same as in conventional FCC processes. In this case, we managed to get the unit up and running successfully in one attempt, but in practice it wasn’t entirely ideal. As Haiyou from the 7th floor said, the simpler the catalytic unit, the better. This post was last edited by chengkang on 2009-3-17 06:49]
I’ve never heard of FDFCC succeeding in starting up once and for all
Changling, Jingmen, and Jinan all have them, right?
In recent years, as catalytic technology has become increasingly mature, it’s now basically possible to achieve a successful drive on the first attempt~!