ROWITEC® Fluidized Bed

Presentation of Waste incineration technologies from Lentjes GmbH

We are all making efforts to deal responsibly with our resources and with nature. Much has already been achieved in this respect.

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1. Company and Plant References 2. Technologies 3. Summary

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1. Company and Plant References

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Lentjes? A few words about the company …

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Lentjes GmbH Ø

Lentjes is a process lead international EPC turnkey contractor with a worldwide network in industrially active markets

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Lentjes is a pure engineering company with in-house proprietary technologies and processes for EfW plants (grate systems, steam generators, FGC systems)

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Over 80 contracts in the waste to energy sector since 1990

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Wide international experience

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Involvement in early stage regarding planning questions

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Local presence in key markets ensures deliverability 5

Turnkey EPC Expertise in

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Engineering (for all combustion systems, boilers, FGC processes, civils, water-steam-cycle, electrical, I&C, etc.)

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Procurement / International Sourcing

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Construction

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Project Management

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Quality Assurance / Health & Safety

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Construction Management

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Training, Commissioning, Performance Testing 6

GEA Group Aktiengesellschaft Turnover €4.5 billion

Employees 17,500

Customised Systems

Process Equipment

Process Engineering

Plant Engineering

Refrigeration

Mechanical Separation

Process Equipment

Lentjes GmbH

Dairy Farm Systems

Energy Technology

Air Treatment

Process Equipment

Turnover ~ €350 m 350 employees

Lurgi AG Zimmer AG Lurgi Bischoff GmbH

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Latest News …. Ø GEA has decided to concentrate on the component business, thus the Plant Engineering Division has been sold Ø Lentjes has recently found new owner in ATEC Industries Ø ATEC Industries will continue and strengthen all former Lentjes’ activities in the future Ø Lentjes will remain a strong and reliable partner in the ‘Energy from Waste’ business

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Headquarters Ratingen / Germany

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Lentjes Portfolio Energy Division

Environment Division

Ø Fossil Fired Power Plants

Ø Hazardous Waste Incineration

Ø Combined Cycle Power Plants

Ø Biomass to Energy

Ø Flue Gas Desulphurisation

Ø Sewage Sludge Incineration Ø Energy from Waste 10

Lentjes Product Portfolio

Fossil Fired Power Plants

Flue Gas Cleaning Power Plants

Treatment Plants for Industrial Waste/Residues Sewage Sludge

Energy from Waste Plants

Biomass to Energy Plants

Circulating Fluidised Bed

Desulphurisation Wet - FGD Seawater - FGD CFB - FGD Ammonia - FGD

Rotary Kiln

Grate Systems

Fluidised Bed



Grate Systems

ROWITEC®

Flue Gas Cleaning

Combined Cycle Power Plants Co-Generation and Industrial Power Plants

Denitrification SCR - Technology

Energy Division

Flue Gas Cleaning

Flue Gas Cleaning

Environment Division 11

Technologies of Energy and Environment Divisions Energy CCPP CFB Flue Gas Desulphurisation Environment Energy-from-Waste and Biomass Plants Sewage Sludge Incineration Hazardous Waste Incineration

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GAVI Wijster / NL, Water cooled grate 3 x 20 t/h

Taoyuan / ROC, Roller Grate 2 x 28 t/h 13

Madrid / E, ROWITEC 3 x 9 t/h

Sleco / B, ROWITEC 3 x 20,8 t/h

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Lenzing / D, CFB 110 MWth

Premnitz / D, CFB 60 MWth

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Ebenhausen / D 2 x 50.000 t/a

Bayer AG Dormagen / D 45.000 t/a

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Dordrecht / NL 3 x 12 t/h, 1 x 24 t/h

Crossness / UK 2 x 3,5 t/d, 5,2 MWel

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SITA Kirklees, Huddersfield / UK 1 x 17 t/h

Shell Green, Manchester / UK 1 x 5,7 t/d Extension Target Price Contract Award 2005 18

WRG Allington, Kent / UK 3 x 21,4 t/h

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Madeira / P

Budapest / H Colleferro / I

Wuppertal / D

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Recent Plant References Energy-from-Waste Start-up

Plant

2001 2002 2002 2002 2002 2002 2002 2003 2003 2004 2005

Taoyuan South / ROC Kirklees / UK Madeira / P Terni / I San Vittore / I Colleferro I+II / I Premnitz / D Powergen / UK Strongoli / I Budapest / H Cantabria / E

2006

Sleco / B

2006 2006 2008 2008 2008 2008

Allington / UK Frankfurt / D Casteltermini / I Augusta / I Palermo / I Manchester / UK

Grate System Throughput LHV (kJ/kg) Roller Grate Recipr. Grate Roller Grate Reci. Grate w/c Reci. Grate w/c Reci. Grate w/c CFB FB CFB Roller Grate Roller Grate

2 x 675 t/d 1 x 410 t/d 2 x 192 t/d 1 x 300 t/d 1 x 300 t/d 2 x 300 t/d 1 x 60 MWth 1 x 530 t/d 2 x 20 MWel 4 x 360 t/d 1 x 288 t/d

ROWITEC

3 x 495 t/d

ROWITEC Recipr. Grate Reci. Grate w/c Reci. Grate w/c Reci. Grate w/c FB

3 x 513 t/d 4 x 480 t/d 2 x 413 t/d 3 x 413 t/d 3 x 552 t/d 1 x 140 t/d

Waste

FGC System

9,600 MSW Semi-dry 9,200 MSW Semi-dry 7,800 MSW Semi-dry 15,000 SRF Semi-dry 15,000 SRF Semi-dry 15,000 SRF Semi-dry 14,000 SRF Circoclean 5,200 Paper Sludge Fabric Filter 11,100 Biomass Dry (BiCar) 8,500 MSW Semi-dry 11,720 MSW Circoclean Circoclean + 50 % SRF 8,300 50 % Sludge Scrubber 9,200 MSW Circoclean 10,300 MSW Circoclean 12,560 SRF Dry (BiCar) 12,560 SRF Dry (BiCar) 11,550 SRF Dry (BiCar) 12,600 (DS) Sludge Wet multi-stage

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Plant References Energy-from-Waste

74 Lines in 43 Plants equivalent to

1.107 tph or ~8,85 mio tpy

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2. Technologies

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Lentjes’ Technologies Related to Waste Sector Furnace Types:

• • • • •

Heat Recovery Boilers:

• Horizontal / vertical multi pass systems • Standard WTE parameters preferred

Gas Cleaning:

• • • •

Reciprocating Grate (air/water-cooled) Roller Grate Circulating Fluid Bed ROWITEC® Fluid Bed Fluidized Bed

Conditioned Dry – CIRCOCLEAN® Semi Dry Wet Scrubbers SCR and SNCR

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Grate Systems Reciprocating Grate Counter Reciprocating Grate

Roller Grate

Application:

Application:

Incineration of MSW / SRF

Incineration of MSW 25

Fluidised Bed Systems ROWITEC®

Application: Incineration of MSW / SRF + Sludge

CFB

Application: Incineration of SRF

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Typical Application Ranges of Technologies

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Roller Grate

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Roller Grate Section I

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Roller Grate Section II

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Roller Grate Side Wall

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Grate Bar

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Roller Grate Drives

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Roller Grate Capability for High CV‘s EfW Plant Wuppertal / D Variation of Heating Values - Roller Grate 2002

2006

Average 2002 (11,8 MJ/kg)

Average 2006 (10,6 MJ/kg)

16.000

15.000

14.000

LHV MJ/kg

13.000

12.000

11.000

10.000

9.000

8.000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Week

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Combined Grate

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Function of Grate Type 410 (Reciprocating) Start Position

Middle Position

moving rows

Final Position

fixed rows

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Function of Grate Type 510 (Counter Reciprocating) Start Position

Middle Position

counter moving rows

Final Position

fixed rows

counter moving rows

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Center Flow Combustion Chamber

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Roller Grate / Reciprocating Grate Ø Both meet all guarantees (burnout incl. siftings) Ø Both have very good references Ø Both present modern state-of-the-art design Ø Roller Grate has lower energy use Ø Roller Grate has less maintenance requirements Ø Significant grate bar weight difference Ø Roller Grate has a higher CV limit in standard form Ø Geometry configuration is different (70 % difference in width has advantages for boiler design) Ø Roller Grate has lower exchange rates Ø Roller Grate applicable for both small and large units 39

ROWITEC® Fluidized Bed Firing Process Principle

1. Waste Feeder 2. Revolving Fluidised Bed 3. Fluidising Air 4. Flue Gas 5. Deflector Plate 6. Non-combustibles Discharge Chute 7. Inclined Nozzle Plate

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ROWITEC® Fluidized Bed Flue gases to boiler Freeboard burner

Secondary air inlet nozzles

2. Screen

Sand valve Waste Feeder

Bed Material (sand) storage silo

Primary air supply

Bed preheat burner

Non combustibles discharge screw conveyor

1. Screen

Magnetic separator

Bucket elevator

Non combustibles discharge conveyor

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Flue gases to boiler Freeboard burner Secondary air inlet nozzles 2. Screen Sand valve Waste Feeder Bed Material (sand storage silo) Bed preheat burner Primary air supply Non combustibles discharge screw conveyor 1. Screen Magnetic separator Bucklet elevator Non combustibles discharge conveyor 41

ROWITEC® Fluidized Bed Madrid Integrated Waste Processing Facility

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ROWITEC® Fluidized Bed Madrid Integrated Waste Processing Facility

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ROWITEC® Fluidized Bed Bed Nozzles and Deflector Plates

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ROWITEC® Fluidized Bed Bootom Ash after Ferrous Metals Separation

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ROWITEC® Fluidized Bed Ferrous Metals separated from Bottom Ash

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ROWITEC® Fluidized Bed Residues in Botton Ash

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ROWITEC® Fluidized Bed Firing Ø Improved heat transfer through the use of a sand bed. Ø Rapid, complete combustion in the fluidized bed with a short retention time. Ø High flexibility with regard to variations in the composition of the refuse. Ø Ease of control due to staged, targeted combustion air feeding. Ø Reducing atmosphere in the bed zone, therefore substantially lower NOx levels in the combustor. Ø Complete combustion: the residual carbon content of the bed ash and fly ash is usually less than 0,1 wt. %. Ø No moving parts in the hot combustor area. 48

Combustion System / Steam Generator I

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Combustion System / Steam Generator II

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Combustion System / Steam Generator III

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Combustion System / Steam Generator IV

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Horizontal / Vertical Boilers Ø Both meet all guarantees Ø Both have very good references Ø Both present modern state-of-the-art design Ø Horizontal boiler has less steam consumption Ø Vertical boiler results in lower invest cost Ø Vertical boiler requires higher buildings Ø Horizontal boiler requires more space Ø General tendency: Horizontal boilers for small units Vertical boilers for large units

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Flue Gas Treatment Processes Process Types Flue Gas Treatment downstream Waste Incineration Plants

Dry Processes

Wet Scrubbing

Catalytic/Non-Catalytic Processes

• NEUTREC • Ca(OH)2 based processes

• Spray scrubbers • Packed columes scrubbers • Multi stage scrubbers • Wet electrostatic precipitators

• Activated carbon processes • SCR-DeNOx and DeDiox • SNCR-denitrification

Semi-Dry Processes • CIRCOCLEAN • Spray absorbtion • Dry conditioned processes

Combined Processes • Effluent free processes by means of evaporation and/or recovery of valuables

Process Recovering • Gypsum recovery • HCl-recovery • Recovery of NaCl/CaCl2

Adsorption Processes • Transport reactor • Fixed bed adsorber • CFB

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Comparison of Flue Gas Treatment Systems Dry / Dry Conditioned Processes

Wet Processes

+ Low Investment Costs

+ High Removal Efficiency

+ Low Maintenance and Operational Costs

+ Minimised (Stoichiometric) Sorbent Consumption

+ Effluent Free

+ Minimised Residue Production + Minimised Residue Disposal Costs

- Limited Removal Efficiency

- High Investment Costs

- High Sorbent Consumption

- High Maintenance and Operational Costs

- High Residue Production

- Possibly Waste Water Treatment required

- High Residue Disposal Costs 55

Circoclean® Flue Gas Cleaning System Water

Stack

Fabric Filter

TIC p

Activated Carbon

Lime Pressure combustion chamber

A

LC FIC

Control

Control

Flue Gas

ID - Fan Residues

CFB Reactor

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MHKW Frankfurt (Old Plant)

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MHKW Frankfurt Comparison of Design Data Old Plant

New Plant

Annual Capacity t/a

447.000

525.000

Number of Lines

4

4

Capacity per Line t/h

15

20

LHV @ MCR MJ/kg

9,2

10,3 (8,0 – 14,0)

Steam Parameter °C/bar

500/60

500/60

Boiler Design

3-Pass + Horiz.

1-Pass + Horizontal

Flue Gas Cleaning System

Semidry, ESP,

Cond. dry Circoclean

Fabric Filter

with PAC

17. BImSchV

17. BImSchV

Emission Values

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MHKW Frankfurt Typical Operation Data (mg/mn³)

HCl SO2

Raw gas

Clean gas Ø

600 – 750 160 – 270

7,5 8,4

CO Cges NOx

8,6 0,5 180

Hg

0,002

Dust

0,5 59

MHKW Frankfurt Impressions during the Erection

I

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MHKW Frankfurt Impressions during the Erection II

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MHKW Frankfurt Impressions during the Erection III

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MHKW Frankfurt (New Plant)

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Taoyuan South Plant Location

Taoyuan South Plant Location

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Technical Data

Service Area

25 km Radius, Southern Taoyuan County (near International Airport), 950.000 Inhabitants Municipal / Commercial Waste 420.000 t/a Waste Bunker Volume 12.000m³ Waste Pre-treatment System none Incineration 2 x 28,125 t/h Grate Type Roller Grate Heating Value Waste 5,9 – 13,4 MJ/kg (9,6) Incineration Temperature 1100°C Steam Generation per Boiler 85 t/h, 40 bar, 400°C Power Generation 40 MWe, 4 MWth District Heat Flue Gas Cleaning System 2 x 160.000 m³/h, Spray Dryer (Semi-dry) with Baghouse, Provisions for SNCR Emission Limits Acc. to Taiwan EPA Land Required 200 m x 175 m 65

Taoyuan South Flow Diagram 1. 2. 3. 4. 5. 6. 7. 8. 9.

Waste Tipping Incinerator with Steam Generator Deslagging Spray Absorber Bag Filter Residue Silos Cement Silo Solidification Turbo Generator Set and Water / Steam Cycle

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Taoyuan South Sectional View 1

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A

A

Taoyuan Southern Region BOO Municipal Solid Waste Incineration Plant

STACK

B

B

C

C

FLUE GAS CLEANING

4

BOILER HOUSE

BUNKER

TIPPING HALL

D

D

2 E

E

8

5 1

F

6

F

G

G

H

H

J

J

K

K

7

L

3

M

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AIR COOLED CONDENSER

L

1 2 3 4 5 6 7 8 9 10

TURBINE HOUSE

N

9 P

Refuse Bunker Refuse Crane Incinerator Waste Heat Recovery Boiler Semi Dry Scrubber Bag Filter I.D. Fan Stack Steam Turbine Generator Set Air Cooled Condenser

M

N

P

Q

Q

R R

1

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Plant Model

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Plant Impressions

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Plant Impressions

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Plant Impressions

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Plant Impressions

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Taoyuan South Operation Data

Year / Month 200201 200202 200203 200204 200205 200206 200207 200208 200209 200210 200211 200212 Total Year / Month 200301 200302 200303 Total

#1 Incinerator Operation hour Treatment tonnage 744 672 744 456 744 699 744 744 720 299 720 744 8030

21147,07 18720,49 21048,29 12275,28 19431,81 19021,61 21378,9 20061,29 18514,16 7916,25 16812,76 18965,85 215293,76

#1 Incinerator Operation hour Treatment tonnage 744 672 680 2096

20211,92 19461,47 39673,39

#2 Incinerator Operation hour Treatment tonnage 744 672 643 482 744 720 744 744 720 456 556 774 7999

21143,37 18491,61 17748,42 12558,53 19472,69 20261,06 20941,95 19419,1 18639,41 11646,48 12154,78 18450,36 210927,76

#2 Incinerator Operation hour Treatment tonnage 743 672 744 2159

19615,74 18820,72 38436,46

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3. Summary

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Lithuania Projects Ø

Lithuania EfW facilities will require ü

l

Large Contractor with Parent Company Backing

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Long Term Commitment to European EfW ü Market

l

Robust Guarantees

ü

l

Bankability

ü 75

Lithuania Projects Ø

Lentjes provides … l

Type and range of technologies

ü

l

Ability to meet capacity range

ü

l

Experience and references in PL

ü

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Summary High level technologies for the incineration of waste are available and allow economic and efficient disposal concepts. All technologies fulfil the requirements for ü large units ü high efficiency A decision for a system must be taken on a project specific basis! The aim must remain: Environmentally safe and reliable incineration of waste. 77

Lentjes GmbH Forward Market Philosophy Ø

Build on sustained presence in key WTE markets

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Select target projects technically and commercially

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Maintain turnkey capability

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Longterm WTE experience with multiple references

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Continue to offer proven technology

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Maintain Lentjes’ reputation for quality process plants

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Increase market share in Waste to Energy markets

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Lithuania Requires waste management solutions incorporating steam/power experts

Win-Win-Position Turnkey Contractor

Strong Market Presence

In House Chute to Stack Technologies

Bankability

Lentjes GmbH

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Lentjes GmbH

… is the worldwide experienced EPC General Contractor with proprietary technical solutions for solid and liquid, hazardous and non-hazardous waste incineration plants.

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Thank you for your attention! Gunnar Lischke Sales Director Lentjes

We have Technologies We have Know-how We have References 81