Looking at the configuration under study here, the operating cost for the extension of the refinery is as follows:
Total cost of utilities per stream year using 0:86 average service factor
¼ 28, 227=day  :86  365 ¼ 8:840 MM =year
Labor salaries at 15=h ¼ 15  8  4  185 h=month  1:4.
Notes on labor:
1. The salaries are increased by 40 % to take up government benefits, paid days off,
vacation, etc.
2. There are four shifts, three on duty and one off every 24 h.
3. Hours worked per person per month is 185 h.
Then total labor cost per year ¼ 124, 320=month  12 ¼ 1:491 MM =year:
Total operating cost per year = 10.331 MM $.
Table 5 Utility requirements per bbl of feed
Steam l
Water
Power
Fuel
Labor
lbs
gals
kWh
MM Btu
Pers/shift
Light end dist
25
12
0.4
–
1
Splitter
0
9
0.4
0.1
00
Cat reformer
50
15
12
0.35
3
Nap HDS
–
4
6
0.12
1
Diesel HDS
30
8
1.5
0.12
1
Thermal cracker
70
20
3
0.5
2
FCCU
20
20
7
–
4
Wash plants
1
2.5
0.4
–
1
VDU
15
20
0.2
0.07
3
Table 6 $/Calendar day for utilities (Exc labor)
Unit
Steam
Water
Power
Fuel
Labor persons/shift
Nap HDS (13,500 BPSD)
–
27
3,400
900
1
Nap splitter (1,350 BPSD)
–
60
227
750
1
Lt Ends (3,000 BPSD)
60
18
50
–
Ther cracker (34,320 BPSD)
1,922
343
4,324
9,500
2
Diesel HDS (9,000 BPSD)
216
36
567
600
1
Cat reformer (9,000 BPSD)
360
68
4,536
263
3
Total
2,558
552
13,104
12,013
8
708
D.S.J. Jones and P.R. Pujado ´