Musi Mill Overview

PT. Tanjungenim Lestari Pulp and Paper PT. Tanjungenim Lestari Pulp and Paper

17 June 2002 Mill Technical Presentation 1



Mill Site

Head Office

LocationMill SiteMuara EnimSouth SumateraIndonesia

Loading PortTarahan, Lampung Indonesia

Head OfficeJakartaIndonesia

LocationMill SiteMuara EnimSouth SumateraIndonesia

Loading PortTarahan, Lampung Indonesia

Head OfficeJakartaIndonesia

Tarahan Port



Mill PerformanceMill PerformanceStart Up 22 Dec. 99

PAC 26 May 00 (Performance Acceptance)

Production Capacity

Design: 1430 tons/day

(90 % availability)

450,000 tons/year

Start Up 22 Dec. 99

PAC 26 May 00 (Performance Acceptance)

Production Capacity

Design: 1430 tons/day

(90 % availability)

450,000 tons/year



MILL LAYOUT



MAPPING



PlantationForestAcacia

Wood

LogsBarking &Chipping

Wood

Chips

ContinuousDigester

• Pulp Fiber• Organic Solid (black liquor)• Inorganic Solid ( chemicals)

Screening &WashingPulp

OxygenBleaching

Pulp

ChemicalBleaching

Pulp

PulpDrying

Pulp

Finishing &Shipping

ChemicalPlantBleach

Chemicals

EffluentTreatment

LematangRiver 45 m3/s

Waste BarkPower Boiler

-Bark-Woodwaste-Biomass

Power Gen1 - Turbine

6300 kPAHigh PressureSteam 47 kg/s

Low & MediumPressure Steamto Mill Process

Electricityup to 75 MW

for Mill Process &Town Site

Weak Black Liquor

Black LiquorEvaporating

Heavy

BlackLiquor75 % solids

Black LiquorChemical Recovery

Boiler 6300 kPAHigh PressureSteam 98 kg/s

GreenLiquor

Lime Kiln &Recaust

WaterTreatment

Fiber Line

Other Processes

PROCESS FLOW – BLOCK DIAGRAM



WOOD SUPPLYWOOD SUPPLYCooperation with PT. Musi Hutan Persada

• Acacia Mangium Plantation ~ 193,000 ha

• Cutting age of 7-8 years…~ 180-200 m3/ha

• M.A.I. (mean annual increment) 30-40 m3/year

• Land Transportation using private road



LOG HANDLING(Sunds-Valmet)

LOG HANDLING(Sunds-Valmet)

• Log Scale Max. 90 Tonnes

• Log yard capacity 100,000 BDT

• Mobile Equipment …4 Sisu machines and six Volvo 180C machines

• Bark Pre-treatment for easy removal

• Debarking (2 lines of Drum Barkers) Each drum is 5 m x 38 m

• Log Washing Prior to debarking



Wood intake Log Handling Chips storage Chip Handling

Water treatment Bark storageBark Handling

Log storage capacity56.000 m 3 sob

Electric power to process equipment:Connected load11871 kWPeak load 7340 kW

Wood to site2.500.000 m3/ann. sob

Logs7.938 m 3/d sob

Chips6699 m 3 /d

2 x 234.000 m3

To Digester 6518 s. m3

/d

Mill water30 l/s total

Slude 50 s.m3/ /d

Waste water 30 l / s

To Boiler 1490 s.m 3/d

15.000 m 3

Bark handlingCL = 76 kWPL = 60 kW

2600 BDt/d2860 BDt/d 2x40000BDt

CHIP PREPARATION CHIP PREPARATION



LOG PROCESSING(Sunds-Valmet)

LOG PROCESSING(Sunds-Valmet)

• Chipping ( 3 lines of Disc Chipper)• Two Bark Shredders

• Chipping Capacity: 3500 BDt/day

(7000 m3 / day)



• Chip Storage capacity of 100,000 BDT• First-In / First-Out Inventory System• Chip Aging ~ 28 Days

CHIP PRODUCTION(Sunds-Valmet)

CHIP PRODUCTION(Sunds-Valmet)

• Chip Screening after chip storage …bark content 1 %.

• Bark Shredder prepares fuel for Boiler



PULP HANDLINGPULP HANDLING

PT TEL’s private TARAHAN PORT (Harbor) Cooperation with PT. WIRADAYA LINTAS SUKSES sub : PT. DWI DAYA SENTRA PRAKASA

• Unloading from Train• Storage –Inventory Management• Loading to Ship has already exceeded 500 tons/hour

PT TEL’s private TARAHAN PORT (Harbor) Cooperation with PT. WIRADAYA LINTAS SUKSES sub : PT. DWI DAYA SENTRA PRAKASA

• Unloading from Train• Storage –Inventory Management• Loading to Ship has already exceeded 500 tons/hour

Tarahan Port



• Process / technical design• Government Reg.• AMDAL• ISO 9002 – in Nov 2001• ISO 14001 – in progress

ENVIRONMENTENVIRONMENT

E C F PULP MILL

ENVIRONMENTAL FRIENDLY



ENVIRONMENTENVIRONMENT EFFLUENT TREATMENTParameter Design Actual Gov. Reg. BOD- kg/t: ≤ 3.9 0.2 8.5 TSS - kg/t: ≤ 3.9 3.2 8.5 COD- kg/t: ≤ 21 6.8 29.75 AOX- kg/t: ≤ 1.5 0.1 - pH : 6.0 – 9.0 7.0 6 - 9• Emergency Spill Basin• Activated Sludge System (Biological effluent treatment)• Water consumption ~ 40 m3 / ton of pulp. • Solid Waste (Sludge) is incinerated in Power Boiler

EFFLUENT TREATMENTParameter Design Actual Gov. Reg. BOD- kg/t: ≤ 3.9 0.2 8.5 TSS - kg/t: ≤ 3.9 3.2 8.5 COD- kg/t: ≤ 21 6.8 29.75 AOX- kg/t: ≤ 1.5 0.1 - pH : 6.0 – 9.0 7.0 6 - 9• Emergency Spill Basin• Activated Sludge System (Biological effluent treatment)• Water consumption ~ 40 m3 / ton of pulp. • Solid Waste (Sludge) is incinerated in Power Boiler

Effluent - ZERO SOLID WASTEEffluent - ZERO SOLID WASTE



Alkaline Sewer

Acid Sewer

Screening Primary Clarifier Neutral. Basin

Emergency Basin

Equalization

Cooling Tower

Aeration Basin

SecondaryClarifier

HoldingPond

Mixing Tank

Dewatering Machine

Sludge from Water

Treatment

PolymerUnit

Sludge Cake to Boiler

Lematang River

NaOHHCl

UreaH3PO4

FLOW DIAGRAM OF EFFLUENT TREATMENT



ENVIRONMENTENVIRONMENT

EMISSION Stack Emission Test (Internal & External) Continuous Monitoring (H2S , NOx, SO2 , Opacity)

EMISSION Stack Emission Test (Internal & External) Continuous Monitoring (H2S , NOx, SO2 , Opacity)

Emergency Basin

Clarifier

NCG - non-condensible burner



ENVIRONMENTENVIRONMENTAir Emission Control Systems Lime Kiln – Electrostatic Precipitator. Power Boiler – Electrostatic Precipitator. Recovery Boiler – Electrostatic Precipitator. HVLC – NCG’s are incinerated in Recovery B. LVHC – NCG’s are incinerated in Auxiliary burner

and the byproduct sodium bi-sulfite is used as a neutralizing agent in the Bleach Plant.

Bleach Plant & Chemical Plant vents are scrubbed according to requirements.

Air Emission Control Systems Lime Kiln – Electrostatic Precipitator. Power Boiler – Electrostatic Precipitator. Recovery Boiler – Electrostatic Precipitator. HVLC – NCG’s are incinerated in Recovery B. LVHC – NCG’s are incinerated in Auxiliary burner

and the byproduct sodium bi-sulfite is used as a neutralizing agent in the Bleach Plant.

Bleach Plant & Chemical Plant vents are scrubbed according to requirements.





CSF Freeness (PFI) ml 508 400 300 270Tensile Index Nm/g 20.8 51.7 71.71 75.5

Tear Index mN.m2/g 4.6 7.9 8.18 8.1

Burst Index kPa.m2/g 1.0 3.5 4.84 5.1

Breaking Length km 2.1 5.6 7.3 7.7Folding Endurance times 1 30 87 116

Light Scattering Coefficient m2/kg 54 42 37 35

Bulk cm3/g 1.65 1.36 1.25 1.20

Using TAPPI test method at 23 o C and 50% RH

TYPICAL PHYSICAL PROPERTIES

PHYSICAL PROPERTIES

20

25

30

35

40

45

50

55

60

65

70

75

80

250300350400450500

CSF Freeness [ml]

Ten

sile

ind

ex

L

igh

t S

catt

.

0

1

2

3

4

5

6

7

8

9

10

Tensile IndexLight Scat.Tear IndexBurst IndexBreaking Length

Bulk

Bu

lk

B

urs

t in

dex

T

ear

Ind

ex

B

reak

ing

Len

gth

Updated : 12/04/00

TL Acacia PrimeTL Acacia PrimeECF Bleached Acacia Kraft PulpECF Bleached Acacia Kraft Pulp

Brightness (% ISO) 89 Dirt (ppm) 2 Moisture (%) ~ 11

BASIC CHARACTERISTICS

Gross WeightDimensionsNumber of WiresWire's diameterMarks Water soluble

ink

2.30 mmInkjet (water soluble blue ink) print on each bale

120 x 80 x 196 cm7

3.00 mm

250 kg 8 bales = 2,000 kg60 x 80 x 49 cm

4

PRODUCT SPECIFICATION

BALE UNIT

PFI REFINING

Documents

Musi Mill Overview