Vacuum o gas
CWS CWR
Ejector system
Vacuum seal drum
Vacuum slope oil to raw crude feed (Fig. 1)
E-36
P-24 A/B
Sour water to E-28 A-C (Fig. 1)
E-35
LVGO bed
P-25 A/B
CW
LVGO product
P-26 A/B
MVGO PA return from E-13 A/B (Fig. 1)
MVGO bed
MVGO product + PA to E-21 A/B (Fig. 2 & 6)
P-27 A/B
HVGO bed
HVGO product to E-24 (Fig. 2 & 6)
P-28 A/B
Vacuum heater
Wash bed
ATB from atm. column (Fig. 3)
Vel. steam
Stripping steam
VTB quench from E-26 A-D (Fig. 2 & 6)
P-29 A/B
VTB to E-26 A-D (Fig. 2 & 6)
Figure 4 Vacuum column
0 10 20 30 40 50 60 70 80 90 100
E-10 A/B
E-12 A/B
E-14 A/B
E-16 A/B
E-18 A/B
E-20 A/B
E-22
E-24
E-26 A-D
E-28 A-C
E-11 A/D E-13 A/B
E-15 A/B
E-17 A/B
E-19 A/B
E-21 A/B
E-23
E-25
E-27 A/B
E-29
Figure 5 Fouling of crude preheat train exchangers performance test run
17
Revamps 2022
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