Here is new coker technology processing article from Hydrocarbon Processing Jan 2009. It looks like it turns a dealyed coker into quasi fluid coker that adds steams in several stages so that you end up with partial liquid (unsaleable probably) from the drum bottom instead of petcoke. (Probably need a Polygen Gasifier set up to use this material as fuel).
The mechanics of the residue removal step are not clear and neither is how they progress from 800-900F material at the end of cycle to final product downstream of steam generator.
I would be interested to know what ExxonMobil Fluid Coking Technology folks take on this process is & more information if any one has it.
Regards
Charlie Randall
