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FULL BENZOLE SYSTEM
Level Control
3.OIL TO VAPOURS 2E403/4.
4.OIL TO OILS 1/2E414.
5.FINAL HEATERS 2E401/2.
6.VAPOUR BOX.2G402
7.BZ STILL 120°c
90°c
11. Lean oil in.(27°c).
1/2P406
1/2P405
1/2P404
1/2P401
1/2P403
1/2P402
1/2P407 1/2P4081/2P409
10.Circulation Tank
9.CREOSOTE COOLERS..
2P410
Cooling Water in
Cooling water out
2P412
20°c 82°c
18.CONDENSER 17.DEPHLEGMATOR
19.TALLBOY 20.BZ SEPERATOR
22.BENZOLE RECIEVER
21.PHLEGM OIL
1P414OP415/6
1/2T410
23.BENZOLE STORAGE
24.TO OUTLOADING
CONDENSATE TO 0T415 TANK
MP STEAM 10.5 BarHEATING COIL
2P424
TO 0T412SLUDGE TANK
2P414
30°c
12.PURIFIER
LP STEAM 1.1Bar
13.Xmas tree
1/2c401
1. BZ WASHER
.STR
IPPE
D O
IL
14.PHLEGM OIL FOW
15.OIL BLEED FROM STILL
16.REFLUXED LIGHT ENDS
1T4042T404
170°c.
108°c
8.WEIRWEIR
2C4042G401
0G403
2E412/1E4112E411/1E412
2LIC-407LEVEL CONTROL
0P435
1/2C402
2. BZ WASHER
1/2405
2C403
BENZOLE STILL HAS 14 BUBBLE TRAYS
1/2LIC-404LEVEL CONTROL
RICH OIL TEMP IN 28°c
RICH OIL TEMP OUT FROM 1/2c401.( 29°c).
LEVEL CONTROL 1/2LIC-406
FLOW CONTROL 1/2FIC-404
2LIC-409
FLOW CONTROL 2FI-405
All temperatures are design specifications forOptimum operations.
1/2P407Transfer
1/2P408Transfer
1/2P406Re-circulation
Pump
1/2P405Re-circulation
Pump
1/2P404 Re-circulation Pump
1/2P401Re-circulation
Pump
1/2P402Re-circulation
Pump
1/2P403 Re-circulation
Pump
LevelControl
LevelControl
Gas fromAmmonia
Washers 27°c
BENZOLE SCRUBBERS OIL AND GAS FLOWS
COKE OVEN GASS TO THE
BOOSTERS 29°c
2 5
31/2C402 1/2C401
Lean oil flow control
Transfer1/2P409
CAN OPERATE FOR EITHER 1/2P407/8
1.2.
1. 1C402 SCRUBBER2. 1C401 SCRUBBER3. LEAN OIL FLOW 4. RICH OIL FLOW
RICH OIL TO STILL
Gas from 1c401. 28°c
1C402 1C401
28°c
GAS OUT
All temperatures are design specifications forOptimum operations.
BENZOLE RICH OIL FLOW
1/2P401
1/2P402
1/2P403
1/2P408
Level Control
8. OIL FROM 1/2C402
2P410
Level Control
1.
2.
4.
5.
6.
1. 1C401 SCRUBBER.2. OIL TO VAPOURS.3. OIL TO OILS.4. FINAL HEATERS.5. VAPOUR BOX.6. 2C403 BZ STILL.7. RICH OIL FLOW.8. OIL FROM 1/2C402.
BENZOLE STILL HAS 14 BUBBLE TRAYS
OIL TO VAPOURS.
FINAL HEATERS.
VAPOUR BOX.
2C403 BZ STILL
Re-circulation Pump
Re-circulation Pump
Re-circulation Pump
VAPOUR EXITS AT APPROX 108°c.
120°c
To oil to oils
90°c
110°c
28°c
1/2C401 SCRUBBER.
2E401/2.
3.OIL TO OILS 1/2E414.
2E403/4.
All temperatures are design specifications forOptimum operations.
BENZOLE VAPOUR RECOVERY
1.
2
3. 4.
5.6.
7.8.
9.
2P414
1P414OP415/6
TO OUTLOADING
1. BENZOLE STILL 2C403.2. OIL TO VAPOURS.3. CONDENSOR.4. DEPHLEGMATOR.5. TALL BOY.6. BENZOLE SEPERATOR.7. PHLEGM OIL TANK.8. BENZOLE RECIEVER.9. BENZOLE STORAGE TANK
1/2T405.10. VAPOUR FLOW.11. PHLEGM OIL/CONDY.12. PHLEGM OIL.13. BENZOLE/CONDY.14. BENZOLE. 15. COOLING WATER.16. CONDENSATE.
20°c 82°c
COOLING WATER IN
COOLING WATER OUT
COOLING WATER IN
COOLING WATER OUT
1/2T410
VAPOUR EXITS AT APPROX 107/8°c.
BENZOLE STILL HAS 14 BUBBLE TRAYS
BENZOLE STILL
OIL TO VAPOURS
OIL TO VAPOURS
CONDENSER DEPHLEGMATOR
BZ SEPERATOR
TALLBOY
BENZOLE RECIEVER
PHLEGM OIL
BENZOLE STORAGE 2C403
Condensate to 0T415
90°c
All temperatures are design specifications forOptimum operations.
Cooling Water in
Cooling water out
2P412
Flowcontroller
Levelcontrol
2P410
.
4.
5.
BENZOLE LEAN OIL FLOW
1.
BENZOLE STILL HAS 14 BUBBLE TRAYS
2P411CAN OPERATE FOR EITHER 2P410/12
30°c
2.OIL TO OIL HEAT EXCHANGERS 3.CREOSOTE COOLERS.
CIRCULATION TANK 1/2T405.
1/2C402 SCRUBBER.2C403 BZ STILL.
All temperatures are design specifications forOptimum operations.
PURIFIER AND STILL SET UP
2C403 BZ STILL.
PURIFIER
4. LP STEAM 1.1 Bar
6. RICH OIL IN
VAPOUR OUT
5. MP STEAM 10.5 BarHEATING COIL
2P424
8. TO 0T412SLUDGE TANK
1.
2.
3.
1. VAPOUR BOX.
2. 2C403 BZ STILL.
3. 2C404 PURIFIER.
4. LP STEAM. 1.1 Bar
5. MP STEAM.
6. RICH OIL.
7. XMAS TREE.
8. HEAVY ENDS. 7. XMAS TREE
Level Control
BENZOLE STILL HAS 14 BUBBLE TRAYS
2C404
VAPOUR BOX
120°c
170°c
108°c
All temperatures are design specifications forOptimum operations.
3. ODT
2.Seal pot
MainNaphthalene
Washer
1
Demister pad
17.Heating coil LP 1.1Bar
1/2p202
1/2p201
1/2P215COMMON PUMP
000000
8866
SEPERATOR 0G202
NAPTHALENE STORAGE TANK 0T204 40°c
18.Heating coilLP 1.1Bar.
Oc202 NAPHTHALENE STILL
CONDENSOR.40°c 0E202
120°c
24.TO BENZOLE PRODUCT TANK
CONDENSATE TO 0T415.7 BUBBLE
TRAYS
7 BUBBLE TRAYS
14.TO 0T412 SLUDGE TANK115°c1/2P211, 0P212 8.LEAN OIL TO MAIN
NAPHTHALENE WASHER
19.Cooling watercoil
Divide tank 0T203
FULL NAPHTHALENE SYSTEM
5.
6.
12.
10
7.
9.
11
13
15.
16.
MAIN HEATER.MP STEAM 140°c0E201
4. RICH BLEED OFF. APPROX 42°c
22.
21. GAS TO AMMONIA should be 1-2°c higher than entry
23.LP STEAM 1.1Bar
120oc
45oc
COOLING WATER IN.
COOLING WATER OUT.
2P424
GAS IN FROM DETARRERS 38-43°c
LEVEL CONTROL
MP STEAM 10.5 BarCONTROL VALVE
FLOW CONTROL
FLOW CONTROL
0P218
1/2C201
1/2T201
LEVEL CONTROL
K O POT.
All temperatures are design specifications forOptimum operations.
1. 1/2C201 NAPHTHALENE WASHER.
2. SEAL POT.
3. OIL DECANTER TANK.
4. DEWATERING POINT.
GAS FLOW.
OIL FLOW.
LEAN OIL.
RICH OIL.
Seal pot
MainNaphthalene
Washer
1/2P202
6. Petroleum oilcirculation
1/2P201
Petroleum oilCirculation.
5. Gas in fromdetarrer,s
10.Gas to ammoniawashers
1
24
Demister pad
9. Heating coil LP 1.1Bar
MAIN NAPHTHALENE WASHER FLOWS
7. LEAN OIL FROM DIVIDE TANK
8. RICH OIL TO STILL
Aim is 1-2°c higher than entry temperature
OIL DECANTER TANK
1/2T201
3
.Dewatering point
1/2p215Operates for either1/2p201/2
4
All temperatures are design specifications forOptimum operations.
1/2P211, 0P212
Divide tank
MP steam 10.5 BAR
Temperature control Valve
140 °C
1.
2.
3.
Naphthalene vapour
Condensate to fire fighting pump house heating
Cooling watercoil
5. LEAN OIL TO MAIN NAPHTHALENE WASHER
4. RICH OIL FROM MAIN NAPHTHALENE WASHERS. 42°c
NAPHTHALENE STILL 0C202 OIL FLOWS
1. 0C202 NAPHTHALENE STILL2. DIVIDE TANK.3. MAIN HEATER. 140°c4. RICH OIL FLOW5. LEAN OIL FLOW
0C202
NAPHTHALENE STILL
MAIN HEATER. 140°c
120°c
115°c
120°c
7 BUBBLE TRAYS
7 BUBBLE TRAYS
All temperatures are design specifications forOptimum operations.
NAPHTHALENE VAPOUR FLOW
column
1.NAPHTHALENE STILL
7. Naphthalene vapour
8866
CONDENSOR . 40°c5.
2.3.
6.
1. 0C202 NAPHTHALENE STILL2. KNOCKOUT POT.3. CONDENSOR.4. ADJUSTABLE WEIR.5. SEPERATOR.6. NAPTHALENE STORAGE TANK.7. VAPOUR FLOW.8. REFLUX LINE.9. LOW PRESSURE STEAM.1.1bar.10. HEATING COIL.11. CONDENSATE/NAP OIL.12. NAPHTHALENE OIL.13. CONDENSATE.
4
8.
9. LP STEAM 1.1 Bar
10.Heating coil.
11.
TO 0T412 SLUDGE TANK
TO BENZOLE PRODUCT TANK
13. CONDENSATE TO 0T415.
NAPTHALENE STORAGE TANK 0T204
SEPERATOR 0G202
0C202
40°c
7 BUBBLE TRAYS
7 BUBBLE TRAYS
120°c
LIQUID REFLUXED BACK INTO THE STILL
0P205/6
All temperatures are design specifications forOptimum operations.
1/2p311/2
1/2p314/5
To lime sump
GAS TO BENZOLE WASHERS 27°c
COOLING WATER IN
COOLING WATER OUT
VAPOUR OUT
DEPHLEGMATOR 1/2E304
85°c
Heat exchangers1/2e306
PLATE COOLER 1/2E308
TO INCINERATOR 1/2F301
1/2T301
1/2C302 1/2C301
GAS FROM NAPHTHALENE WASHERS 40 °c
1/2337
1/2P303
1/2P302
1/2P301/7
1/2P3081/2P309
1/2P310COMMON PUMP
1/2P319
GAS OUT 26°C
COOLING WATER IN
SECONDARYCOOLERS
KNOCKOUT POT
AMMONIA STRONG LIQUOR FLOW
1/2p306
1/2p304
1/2p305
LEVEL CONTROL
STRONG LIQUOR STORAGE
AMMONIA STILL
1/2C303
LEVEL CONTROL
18m³/HR. 1c302
18m³/HR.2c302
INTO SUCTIONOF 1/2P306
LEVEL CONTROL
FLOW CONTROL 40m³/HR.
1/2T305
1.
2.
3.1.
6.
5.
4.
10.
8.
7.
9.
11.
12.
13.
14.
15 VALVE TRAYS
15.
All temperatures are design specifications forOptimum operations.
1/2p306
1/2p305
1/2p304
1/2p337
1/2p307
1/2p302
1/2p303
AMMONIA SCRUBBERS
1/2P308
1/2P310
1/2P309
TO 1/2T301
GAS FROM MAIN NAP WASHERS
GAS TO BENZOLE SCRUBBERS 27°c
1/2c302
1/2c301
FROM 1/2C303
26°c
SECONDARYCOOLERS
LEVELCONTROL
LEVELCONTROL
FLOWCONTROL
All temperatures are design specifications forOptimum operations.
1/2C303 FREE STILL STRONG LIQUOR FLOW
DEPLEGMATOR 85°c
K/O POT
1/2C303
15 VALVE TRAYS
HEAT EXCHANGERS 1/2E306
COOLING WATER IN
PLATE COOLERS 1/2E308
COOLING WATER OUT COOLING WATER IN
COOLING WATER OUT
18m³/HR STRIPPED LIQUORTO 1C302
18m³/HR STRIPPED LIQUORTO 2C302
1/2T301 STRONG LIQUOR STORAGE
40m³/HR STRONG LIQUORTO 1/2C303
40m³/HR STRONG LIQUOR
36m³/HR STRIPPED LIQUOR OUT
VAPOUR TO 1/2F301 INCINERATOR
REFLUX LINE
LP STEAM IN. 1.1Bar
APPROX 4m³/HR STRIPPED LIQUOR AND EXCESS CONDY FROM STRIPPING STEAM TO LIME SUMP.
1/2P319
1/2p314/5
1/2p311/2
All temperatures are design specifications forOptimum operations.
1/2C304 AND 0C305 FIXED AND FREE STILLS
LP STEAM 1.1 Bar
FIXED SECTION
FREE SECTION
CAUSTIC IN
FIXED AMMONIA
VIRGIN LIQUOR INVIRGIN LIQUOR INCAUSTIC IN
VAPOUR OUTTO 1/2F301INCINERATOR
VAPOUR OUT TO 1/2F301INCINERATOR
STRIPPED LIQUOR TO LIME SUMP
STRIPPED LIQUOR TO LIME SUMP
8 BUBBLE TRAYS
9 BUBBLE TRAYS
0C305 1/2C304
LP STEAM 1.1 Bar
19 VALVE TRAYS
BLEED TO ANALYSERS
All temperatures are design specifications forOptimum operations.
0C305 FIXED AND FREE STILL FLOWS
COOLING WATER IN
COOLING WATER OUT
VAPOUR TO 1/2F301 INCINERATOR
K/O POT
REFLUX LINE
LP STEAM 1.1 Bar
LEVELCONTROL STRIPPED LIQUOR
TO LIME SUMP
BLEED TO ANALYSERS
DEPLEGMATOR 85°c
0C305
0/1/2T105, 0T112VIRGIN LIQUOR STORAGE
TRANSFER PUMPS0P126,1/2P117,1/2P312
CAUSTIC PUMP
CAUSTIC TANK 0T312/3 +30°c HEATING COIL
LP 1.1Bar
CAUSTIC FROM TANKER OFFLOADING POINT
All temperatures are design specifications forOptimum operations.
TAR AND LIQUOR FLOWS
0T112VIRGIN LIQUOR
DOWNCOMER
1 1
BIOLOGICAL EFFLUENT PLANT
SLUDGETORECYCLE
SLUDGETORECYCLE
MP
INSTRUMENTS ON PLANT
INSTRUMENT AIR
COOLING TOWER
BY-PRODUCTS PLANT EQUIPMENT
PLATE COOLER 1E308
Hot liquor in
Cooled liquor out
Cold waterIn from coolingtower
Hot waterout to coolingtower
SPIRAL SECONDARY COOLER
HOT IN FROM 1/2P301/7
COLD IN FROM COOLING TOWER
TO 1/2C302
COOLED LIQUOR OUT
HEATED WATER OUT TO COOLING TOWER
SHELL AND TUBE HEAT EXCHANGER
Vapour InVapour Out
COOLING Water Out
Product Out
COOLING Water In
End Views 4 Pass Tube and Shell
1.
4.
2.
Flange Flange
Dividers
Dividers3.
Tubes
chandelier
InsulatorTurrets (3 of)
Vent
Gas seal pot
To 0A102low level sump
1
6
TOP FLUSH
BOTTOM FLUSH
Gas In From Exhauster 30°c
Gas out to main Naphthalene washer 40°c
Flow Control Valve
Flow Control Valve
Tar Loaded Coke Oven Gas
Nitrogen In
HV Rectifier
Power InFlushing Liquor
Turret temperature maintained between 30°c and 70°c
1V101 AND 2V102 DETARRERS
Electrode wires
Tension Weights
DETARRED INTERNAL VIEW OF CHANDELIER
DETARRER CASING
CHANDELIER WIRES
TENSION WEIGHTS
139 HEXAGONAL TUBES ENCORPORATING ELECTRODE WIRE
ELECTRODE WIRE FROM CHANDELIER
PRIMARY COOLERS 1/2C101/2
8 No tar spraysOnly 4 in service At any time
9 No Liquor Sprays
9 No Liquor Sprays
Liquor In
Liquor In
Liquor Out
Liquor Out
1p103/2p101
Spiral Coolers
1/2p102
1/2p112
Gas In
Tar In 5m³/hr.
Gas Out
Common Standby1p101/2p119
Low Level Sump
Tar & LiquorDecanters
Desludging Point
Rodding Point
Syphon Breaker
Overflow
Gas In
726m³/HR.
28oC
From
downcomer
(all units)
From primary
coolers
(all units)
From low level
sump 0A102
Spiral coolers hot flush
discharge line
(1 & 3 only
Sludge scraper
Tar weir
Liquor
overflow
Sludge skip
Chute
Baffles
To 1/2T102
pump tank
To 0T104/111
Liquor receiving
tank
TAR & LIQUOR DECANTERS
Xmastree
Desired tar level
SLUDGE SKIP EMPTIED INTO TAR POND ROT
To Tar Storage
Excess Liquor to 0,1,2T105/ 0T112 Virgin Tanks
1/2p121/2
Gas Booster 1/2B501/0B502
Electric Motor
Fluid Coupling Oil Filter
Aux. LubePump/Motor
Lube OilCooler
GasInlet
Outlet
Booster GearBox
Fluid Coupling
Motor
Speed Control Unit FLUID DRIVE
Heaters &Thermostats
Water
Oil FiltersInstrumentPanel
Auxiliary oil pump pressure 2.2 barg
Auxiliary oil pump stops & main pump takes over at 2.75 barg
Auxiliary oil pump restarts at 2.15 barg
Oil temperature trip set at 10 DegC
AUTO / MANUAL
HP STEAM TURBINE 17.5Bar COUPLING
COKE OVEN GAS TURBINE
GOVENOR
AUTO/ MANUAL STATION .CONTROL PANEL
OIL TANK
HP STEAM 17.5Bar IN
LP STEAM 1.1Bar OUT
HP STEAM GAS EXHAUSTER.
1.Auxiliary oil pump cuts out at approximately 4.9 barg
2.Auxiliary oil pump cuts in at approximately 4.2 barg
3.Auxiliary oil pump outlet pressure is approx 4.4 barg
4.Main oil pressure is 5.3 barg
5.Lube oil pressure is 2.0 barg
6.Bearing oil pressure is7.Low oil pressure trip is
1.2 barg0.9 barg
TYPES OF PUMP ON PLANT
CENTRIFUGAL PUMP
ELECTRIC MOTOR
BED PLATE
POWER SUPPLY
PUMP SECTION
COUPLING GUARD
Mechanical seal
POSITIVE DISPLACEMENT/ RECIPROCATING PUMP
BASIC BALL VALVE
1.
2.
3.
4.
5.
6.
8.
7.
BLAGDON PUMP
1
2.
3.4.
5.9.
7.
6.
8. 9.10.
11.
12.
RETURN SPRING
DIAPHRAGM
ACTUATOR STOP
STEM
AIR INLET FROM POSITIONER
RETURN SPRING
STEM SEALS
CONTROLLER SIGNAL
ACTUATOR STOP
COMPRESSED AIR SUPPLY
PNEUMATIC CONTROL VALVE
BUTTERFLY VALVE
FLANGE
AMMONIA STILL HINDLE VALVE
Pivot Point
Open Solid
Hindle valve in online position.
Vapour pipework
Spectacle section of hindle valve.
1Of 3 Locking nut
GAS HOLDER LIFT AND BASE CABIN
GAS HOLDER SEALANT PUMP TANK
