bio mass fuel power plant design

part of the Aker group

Solutions for Biomass Power Plants

Jouni Kinni"Electricity and Heat from Biomass in European Industry"Brussels, October 4th, 2006

3-Oct-06 Slide 2

2006 Aker Kvaerner


Kvaerner Power global business

Boiler plant supplier with five own manufacturingfacilities worldwideRevenues EUR 500 million1600 employees

Tampere

Curitiba

Charlotte

Gothenburg

Main officesManufacturing unitsSales and/or engineering offices

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2006 Aker Kvaerner



1. Large Combined Heat and Power (CHP) plants in pulpand paper industry Case example: Kymin Voima, Kuusankoski, Finland

2. Medium-size condensing power plants based on localbiomass Case example: E.ON UK Stevens Croft Power Station,

Lockerbie, Scotland

3. Large condensing power plants based on seatransported biomass Multiple in development phase

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2006 Aker Kvaerner


Large CHP plants in pulp and paper industry Power plants operated according to steam demand of

the paper machine or pulp mill Electricity produced by back-pressure steam turbine Total efficiency = (electricity + heat) / fuel energy > 80% Fuels:

Mills own side products(bark, rejects, sludge)

Forest fuels from companysown wood collection

Additional fuels purchasedto cover the demand Nordic Countries:

peat, coal + oil/gas as back-up Central Europe: mainly gas

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2006 Aker Kvaerner


- Over 160 HYBEX boilers (BFB) since 1974 - Over 60 CYMIC boilers (CFB) since1980- Capacity for max 120 MWe power plant - Capacity for max 240 MWe power plant

Large CHP plants in pulp and paper industry

Kymin Voima 80 MWe CHP plant Alholmens Kraft 240 MWe CHP plant

Kvaerner Power fluidized bed boiler experience

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2006 Aker Kvaerner



HYBEX boiler (269 MWth, 2002)

Case: Kymin Voima, Kuusankoski, Finland

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2006 Aker Kvaerner


Kymin Voima, Kuusankoski, Finland

Ownership Pohjolan Voima (UPM-Kymmene) 76 % Kouvolan Seudun Shk (local utility company) 24 %

Located at UPM-Kymmene Kymi Paper mill Paper production 920,000 t/a Pulp production 520,000 t/a Wood consumption 2,3 million m3/a

Kymin Voima power plant capacities Fuel consumption 2100 GWh/a Electricity 80 MW Process steam 125 MWth Hot water to mill 15 MWth District heat 40 MWth

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2006 Aker Kvaerner


Kymin Voima, Kuusankoski, Finland

CONDENSOR 0-60 t/h

0 10 t/h

0 20 t/h

0-50 t/h

KPA265 MWf385 t/h G

SK1110 t/h

SK2250 t/h

MK120 t/h

G G

PM9 PM8 PM7 COOKING

COOKING

DRYING

C3 ja PK7

GT1 GT2

114 bar540C

0-15 t/h

MAX85 MW

Kouvola +Kuusankoski0-40 MW

EVAP.

3,5 bar

13,5 bar

4,5 bar

MAX15 MW

MAX28 MW

110 t/h 230 t/h16 bar200C

KYMI

3,5 bar115-300 t/h

Kymi Paper Oy

OWN USE

OWN USE

OWN USE

Accumulator

Kni. heating

0 - 15 MW

KAL

Pk1/2, FC,Ky.lm

84 bar

480C

84 bar

480C

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2006 Aker Kvaerner


Kymin Voima, Kuusankoski, FinlandDesign fuels

8,9

Back-up fuel

Additional fuel

11,3

2,5

7,4

6,6 - 10,2

HeatingvalueMJ/kg

2940 60Peat

47

60 70

40 60

44 65

Moisturerange

%

Design mix

Heavy fuel oil

Natural gas

Biosludge

Forest residue

Bark

Type

1

7

60

Share of annual usage

%

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2006 Aker Kvaerner


Kymin Voima, Kuusankoski, FinlandEmission guaranteesLarge Combustion Plant (LCP) directive

250CO

37N2O

30Dust

345SO2

370NOx

mg/Nm3

Values are at dry gas corrected to 6% O2 (dry).

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2006 Aker Kvaerner



Possibilities to add biomass / Nordic countries Branches and tops allready collected Growth potential in small wood and stump collection Other sources:

Canary grass Packaging derived fuel Recycled wood

0

200

400

600

800

1000

1200

1400

1600

1800

1999 2000 2001 2002 2003 2004 2005

GW

h

StumpsSmall woodChipping at work siteChipping at roadsideLoose residuesBundlers

UPM forest fuel collection in Finland

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2006 Aker Kvaerner



Central European mills mainly paper mills No or little of mills own bark and wood fuel De-inking sludge at recycled paper mills Addtional biofuels:

Forest fuel Recycled wood Short rotation coppice

UPM Shotton, UKUPM Chapelle Darblay, France ~20 MWe

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2006 Aker Kvaerner




2. Medium-size condensing power plants based on local biomass Case example: E.ON UK Stevens Croft Power Station,

Lockerbie, Scotland


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2006 Aker Kvaerner


Medium size condensing biomass power plants

Fuels collected within 100 - 200 km radius from the plant, truck transportation Wood fuel industry residues, e.g saw dust Forest fuel, even round logs Energy wood; willow Recycled wood

Produces electricity only Plant efficiency = nett electricity / fuel energy = 3134%

Energy Systems, Cuijk, The Netherlands, 25 MWe

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2006 Aker Kvaerner


Medium size condensing biomass power plants

Case: E.ON Stevens Croft Power Station, Lockerbie, UK

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2006 Aker Kvaerner


Net electricity output: 44 MW Net efficiency: 31.3% Located in Scotland 3.5 km north

of Lockerbie Most densely forested area in

the UK Scottish forestry timber

predicted to increase from 6 Mm3 in 2002 to 10 Mm3in 2017

Stevens Croft Power Station willuse about 500.000 tons woodfuel annually

E.ON Stevens Croft Power Station, Lockerbie, UK

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2006 Aker Kvaerner



Renewables Obligation (Scotland) Order: Legal obligation on all licensed suppliers to meet a defined percentage of retail sales from eligible renewable sources: Obligation is 5.5% in 2005/06 rising to 10.4% in 2010/11

Alternatively a supplier can pay the buy-out price (30/MWh in 2002/03)

Project background

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2006 Aker Kvaerner



HYBEX boiler and fuel storage

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2006 Aker Kvaerner



Design fuels

7.96.7 - 9.4

LHVMJ/kg

4020 - 25Recycled Wood

2035 - 55Short Rotation Coppice (SRC), chipped willow

0.60.2 - 2

5346 - 58

Nominal design fuelRange

54 - 62Sawmill co-products

52 - 58Small Round Wood

Max share % of fuel energy

Ash% (dry)

Moisture%

Type

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2006 Aker Kvaerner



Emission guaranteesWaste Incineration Directive (WID) for co-incineration plants

Values are at dry gas corrected to 6% O2 (dry).

0.5mg/Nm3Sb+As+Pb+Cr+Co+Cu+Mn+Ni+V

0.05mg/Nm3Mercury

0.05mg/Nm3Cadmium and Thallium

0.05ng/Nm3PCDD/PCDF (I-TEQ)

120mg/Nm3TOC

3mg/Nm3Hydrogen Fluoride

30mg/Nm3Hydrogen Chloride

150mg/Nm3Carbon Monoxide

10mg/Nm3Dust

75mg/Nm3Sulphur Dioxide

250mg/Nm3Nitrogen oxides (NOx), as NO2

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2006 Aker Kvaerner




2. Medium-size condensing power plants based on localbiomass Case example: E.ON UK Stevens Croft Power Station,

Lockerbie, Scotland


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2006 Aker Kvaerner


Large condensing biomass power plants

Location close to ocean jetty Capacities from 50 MWe to 200-300 MWe Plant efficiency 3438% Fuels transported from overseas: North and South

America, Asia: Wood pellets from Canadien forest industry Olive residues from Southern Europe Palm kernel shells from Asia

Additional fuels collected from local area Need for coal as back-up fuel Projects under development

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2006 Aker Kvaerner



1. Large Combined Heat and Power (CHP) plants in pulp and paper industry

2. Medium-size condensing power plantsbased on local biomass

3. Large condensing power plantsbased on sea transported biomass

Economybased on subsidisedelectricityprice orobligations

Economybased on high totalefficiency

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2006 Aker Kvaerner


Jouni KinniSales ManagerKvaerner Power OyPhone direct +358 (0)20 141 2416Mobile phone +358 (0)400 623 610Operator +358 (0)20 [email protected] 109, Kelloportinkatu 1DFI-33101 TAMPERE, Finland

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2006 Aker Kvaerner


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bio mass fuel power plant design

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