Specific heat of FCC products
Specific heat of FCC products
(OP)
Can anyone help me with the specific heat of the FCC fractionation column products, including the bottom slurry and the top gas mixture (unstabilized gasoline + gases)?
I have found an index chart in a French petroleum handbook ("Le Petrole - Raffinage et Genie Chimique" by P. Wuithier) for the specific heat of hydrocarbons and liquid petroleum fractions. But there is also a correction coefficient which depends on Kuop of the fraction and I haven't been able to find a formula to calculate this factor.
Thanks!
I have found an index chart in a French petroleum handbook ("Le Petrole - Raffinage et Genie Chimique" by P. Wuithier) for the specific heat of hydrocarbons and liquid petroleum fractions. But there is also a correction coefficient which depends on Kuop of the fraction and I haven't been able to find a formula to calculate this factor.
Thanks!





RE: Specific heat of FCC products
The UOP K factor, based on data for pure HCs, correlates boiling point with specific gravity, as follows:
where
Tb is the average (at 10, 30, 50, 70, 90 % volume distilled) boiling point on degrees Rankine (=oF + 460) with a small correction to account for the slope of the distillation curve;
d is the specific gravity 60/60oF.
K is additive on a weight basis for mixtures.