1
Kerosene/
Jet Fuel Oil
Naphtha
Hydrotreating
Naphtha
Kerosene
Hydrotreating
Gas Oil
Hydrotreating
Diesel
Gasoline
Naphtha Reformer
Benzene/
P-Xylene
BTX
Refinery Process
3
CRUDE DISTILLATION
4
DESTINATIONS FOR STRAIGH-RUN DISTILLATES
5
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
1) Reactor/Regenerator Section
Feed is cracked at the riser
by catalyst in 2~3 sec.
Cracked hydrocarbon is separated
from catalyst in cyclones.
Catalyst returns to regenerator after
stripping in stripper.
Catalyst is regenerated in regenerator
by burning coke.
Regenerated catalyst goes to riser.
Feed
Air
Air
Flue
Gas
Reactor
Effluent
Steam
Lift Gas
Catalyst
6
7
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
1) Reactor/Regenerator Section
Feed
Air
Air
Flue
Gas
Reactor
Effluent
Steam
Lift Gas
Cyclone
Catalyst
Fluidization
8
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
1) Reactor/Regenerator Section
Feed
Air
Air
Flue
Gas
Reactor
Effluent
Steam
Lift Gas
Stripper
Feed Nozzle
9
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
1) Reactor/Regenerator Section



APS : 72µ, Surface Area : 210 m2/g, Pore Volume : 0.38 cc/g,
ABD : 0.76 g/ml, Al2O3 : 57%
10
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
2) Main Column Section
Reactor
Effluent
Wet Gas
Unstabilized
Gasoline
HCN
LCO
Slurry Oil
HCN/LCO/SLO Production
HCN & LCO Stripper
Heat Recovery at Steam
Generator
Heat Supply to Gas Con.
Section and HCN Stripper
Feed Preheating
11
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
3) Gas Concentration Section
LCN
to Merox
or GDSU
LPG to
Amine
Absorber
Wet Gas
Unstabilized
Gasoline
Fuel Gas
to Amine
Absorber
Fuel Gas / LPG / LCN Production
LPG / LCN Amine Absorbing
12
1. RFCC Unit
II. SK’s RFCC and Satellite Units
D. Systems Description
4) Merox Section
LPG Extraction Unit
Gasoline Sweetening Unit
Reaction : RSH + NaOH  NaSR + H2O
Caustic Regeneration :
NaSR + ¼ O2 + ½ H2O NaOH + ½ RSSR
Reaction : RSH + 1/4O2
 ½ RSSR + ½ H2O
15
16
17
18
19
FCC Catalyst Components
MATERIALS
INTERMIDATE PRODUCTS
FINAL PRODUCTS
Silica (SiO2)
Alumina (Al2O3)
------------------
Sodium hydoxide
Clay material
Alumina (Al2O3)
Silica (SiO2)
…..
Platium
Rare Earth
ZSM-5 zeolite
Atimon,…
10 -50% zeolite
(Catalytic Active phase)
50 – 90%
Matrix
(Structural stable phase)
0 – 10%
Promoters
FCC catalyst
21
23
Acid sites
24
25
26
27
28