100,000BPD Refinery History

Crude Distillation Unit CDU (100)

HISTORY

1962Commissioned at 68,500 BPSD capacity

1969Debottlenecked to 100,000 BPSD

-added second parallel preheat exchanger train

-doubled overhead cooling capacity, and

-installed booster feed pump

Installed new desalter

1975Modified tower internals removed two trays and replaced two others with packed section and bubble cap tray

1992CDU Encon Project Phase-1

-installed four preheat exchangers (two new and two idle)

-modified tower internals, and

-raised gas oil draw

1994 CDU EnCon Project Phase-II

-installed six new preheat exchangers

1997CDU Tower Modifications

-installed new sieve trays at stripping section

-installed new steam distributors at stripping section

-installed new VEP type gravity liquid distributor

-removed random packing and

-removed bubble cap tray no 6 installed new low pressure drop de-entrainment tray

-installed new HGO draw nozzles

CUTS

ASTM end

point oCLight products

Isa naphtha71

swing stream # 182minimum gasoline

swing stream # 2104

h s e naphtha154

swing stream # 3160maximum gasoline

swing stream # 4171

swing stream # 5182

kerosene271 jet A – 1

kerosene310product kerosene

swing stream # 6310 diesel

gas oil388

swing stream # 7396

swing stream # 8400 – 410

residuum410

Naphtha Catalytic Hydrodesulphurization Unit NCHD(200)

HISTORY

1962Commissioned at 19,000 BPSD capacity

1969Debottlenecked to 21,700 BPSD

-added preheat exchangers

1998Debottlenecking to 24,000 BPSD has been implemented

-3 ea new preheat exchangers has been installed

UNIT CAPACITY24,000 BPSD158.9 m3/hr

CATALYST

Akzo KJ-752-3Q 7,560 kg

Criterion C-448 TL+ 7,780 kg

Total15,340 kg

Platinum Reforming Unit PtR (300)

HISTORY

1962Commissioned at 8,000 BPSD capacity

1970 Installed spare smaller capacity recycle gas compressor

1991Expanded to 14,000 BPSD

-re-trayed stabilizer tower

-added five new exchangers, and

-added fourth reactor (radial flow)

1996New Recycle gas compressor shifted

UNIT CAPACITY14,000 BPSD92.7 m3/hr

six – month cycle @ 96 RON clear severity

CATALYSTU O P R – 62 P t / R h :

kilograms

in spherical reactor # 1 (D-300)6,000

in spherical reactor # 2 (D-301)6,617

in spherical reactor #3 (D-302)6,645

in new radial reactor # 4 (D-351)+ 29,956

49,218

(Regenerated in October 2001)

Kerosene Catalytic Hydrodesulfurization Unit KCHD (400)

HISTORY

1962Commissioned at 8,000 BPSD capacity

Designed for mild desulfuriszation of kerosene

1969Expanded to 12,000 BPSD kerosene

Diesel specification reduced to 0.7 %wt. Began desulfurizing gas oil at 10,000 BPSD maximum in blocked operation.

1988

1997Dense loading of reactor performed. New distributior tray installed.

UNIT CAPACITY

12,000 BPSD Kerosene: 79.5 m3/hr

10,000 BPSD Gas oil:66.25 m3/hr

CATALYST

Liquefied Petroleum Gas UnitLPG (600)

HISTORY

1967Commissioned at 2,800 BPSD capacity

Designed for mild desulfurization of kerosene

1970Expanded to 4,000 BPSD along with PtR

UNIT CAPACITY

4,000 BPSD26.5 m3/hr

Sulfur Recovery

20 tons/day of sulfur produced by running 100 TBD highest sulfur crude through existing facilities to produce 0.7 wt% sulfur APD. This matches the desulfurizing capability of the existing KCHD at a 65% sulphur removal rate.

Amine Treating Unit ARU(700)

HISTORY

Commissioned to treat 18,500 m3/hr fuel gas containing 26 kgmoles/hr HZS.

Specified to meet 0.4 – 5.0 %vol H2S in fuel gas (- 2 tons/day)

UNIT CAPACITY

18,500 M3/HR Fuel Gas

Sulfur Recovery UnitSRU (800)

HISTORY

1995Commissioned to recover 20 tons/day sulfur

-Three-converter Claus plant, single train: 6.6 to 1 turn-down ratio. Incinerator but no tail gas unit

-Sulfur Recovery is 97% at SOR, 96% at EOR

-SO2 emission < 1 kg mole/hr

UNIT CAPACITY

20 tons/day

Solid Sulfur Forming Unit Flaker (900)

HISTORY

1995Commissioned to process 30 tons/day liquid sulphur solid sulfur flakes

ADDITIONAL INFORMATION ABOUT PROCESSING UNITS REVELANT UDGRADES

1) ATMOSPHERIC CRUDE DISTILLATION UNIT

a) Capacity : 100 TBD

b) Whose technology : Socony Mobil Oil, installed by Foster Wheeler

c) Year of recent upgrades : ENCON Project Phase 1

1992Project Phase 2

1997 Atmospheric Tower Modification

2) NAPHTHA CATALYTICAL HYDRODESULFURIZATION UNIT

a) Capacity : 24 TBD

b) Whose technology : Socony Mobil Oil, installed by Foster Wheeler

c) Year of recent upgrades : 1982 De-bottlenecked to 21.7 TBD

1998 De-bottlenecked to 24 TBD

3) PLATINUM REFORMING UNIT

a) Capacity : 14 TBD

b) Whose technology : Socony Mobil Oil, installed by Foster Wheeler

c) Year of recent upgrades : 1991 De-bottlenecked to 14 TBD

1996 New recycle gas compressor was taken into service.

4) KEROSENE CATALYTICAL HYDRODESULFURIZATION UNIT

a) Capacity : 12 TBD

b) Whose technology : Socony Mobil Oil, installed by Foster Wheeler

c) Year of recent upgrades : 1980`s Expanded to 12,000 BPSD Kerosene

1988 Modified for gas oil desulphurisation at 10 TBD

1999 De-bottlenecked to 12 TBD with gas oil

5) LIQUEFIED PETROLEUM GAS UNIT

a) Capacity : 4 TBD

b) Whose technology : Socony Mobil Oil, installed by Lummus

c) Year of recent upgrades : 1980`s Designed for mild de-sulphurization of

kerosene to 4,000 BPSD along with PtR

6) AMINE TREATMENT AND RECOVERY UNIT

a) Capacity : 18500 m3/h fuel gas ( as to produce 20 ton/day of sulfur )

b) Age : 9 years old

c) Whose technology : Snamprogetti

d) Year of recent upgrades : None.

7) SULFUR RECOVERY UNIT

a) Capacity : 20 ton/day of liquid sulphur

b) Age : 9 years old

c) Whose technology : Snamprogetti

d) Year of recent upgrades : None.

8) SOLID SULFUR FORMING UNIT ( FLAKER )

a) Capacity : 30 ton/day of sulphur flakes

b) Age : 9 years old

c) Whose technology : Snamprogetti

d) Year of recent upgrades : None.

OTHER PROCESS UNITS CAN BE ADDED DEPENDANT ON CUSTOMERS PRODUCT REQUIREMENTS (i.e. FCCU OR VACUUM DISTILLATION UNIT)