Page 102 - Fluid Catalytic Cracking Handbook

FCC Feed Characterization 79

Calculate refractive index:

1
I = A x exp(B x MeABP + C x SG + D x MeABP x SG) x MeABP* x SG F
2
1 = 9 341 v 10~ xexD^' 4Wxlo 4x! 276+5pl4 x0 913 3 289xlcr4xl>276x0 913)
~ '
^ '
"
~ '
3 3333
x(!276)-°- 407 x(0.913)- -
l/2
RI = (1 + 2 x I/I- I)

/ \l/2
_ 1 + 2x0.294 V
R1(20)
"~l 1-0.294 J
RJ (20) = 1 .500

,,^ , 7. . ^ . „ SG - 0.24- 0.222 xlog(v 210- 35.5)
VG = Viscosity Gravity Constant = ™
0.755

Q = 0.913 -0.24- 0.022 xlog(50- 35.5)
0.755

VG = 0.8575

X A = g + h(Ri) + i(VG)

X A = -403.8 + 265.7 xf 1.5000-^^1 + 161. Ox 0.8575

X A = 1 1 .5 rnol%

X N = d + e(Ri) + f(VG)

X N = 246.4 - 367.0 x 1.5000 - + 196.3 x 0.8575
2

X N = 31.8 mol%

X p = a + b(Ri) + i(VG)