Presentation given Biomass Gasification Europe 2014 at the Conference of the European Biogas Association 2014.

1. Valmet Gasification
Solutions for Biomass
and Waste
Biomass Gasification Europe 2014,
Alkmaar
Frank Ligthart
Sales Director Valmet Power
+358 40 561 9612
frank.ligthart@valmet.com

2. Valmet Gasification Solutions for Biomass and
Waste
Ÿ Valmet
Ÿ Part replacement of coal with biomass in utility boiler
Ø Vaasa biomass gasification
Ÿ Synthetic natural gas as vehicle fuel from biomass
Ø GoBiGas
Ÿ Highest efficiency for energy from waste
Ø Lahti waste gasification
Ÿ Summary
7 oktober 2014 © Valmet 2 | Author / Title

3. Valmet

4. Global supplier of services and technologies for
the pulp, paper and energy industries.
Services
• Mill and plant
improvements
• Spare parts
• Maintenance services
• Life-cycle services
Pulp and Energy
Technologies and solutions
for
• Pulp production
• Energy production
• Biomass conversion
Paper
Technologies and solutions
for
• Board production
• Tissue production
• Paper production
Valmet has a turnover of €3 billion and was reborn through
the demerger of Metso Group on December 31, 2013.
December 31 4 2013 © Valmet |

5. New technologies facilitate transfer from
fossil fuels to utilization of sorted waste and biomass
Gas boilers,
PC boilers
& kilns
PC boilers
& Industrial
kilns
5
Atmospheric
gasification
Hot gas
filtering
Biogas
Bio-oil
Waste
Heating
Plants
& biofuels
Fast pyrolysis
Biomass
Atmospheric
gasification
Biogas
Steam explosion Biocoal
Co-firing in
PC boilers
oktober 7, 2014 1) HFO = Heavy fuel oil

6. Gasification technology
Ÿ Technology
– Atmospheric circulating fluidized bed
gasification
– Waste and biomass are converted to a fuel
gas that can be cleaned or directly burned
– Product gas 3-7 MJ/nm3 (LHV)
– Indirect gasification (Repotec license)
Ÿ Experience
– First biomass gasifier in 1980’s
– Valmet has built the world’s largest gasifiers
for waste and biomass
Ÿ Key applications
– Replacing fossils with renewable biomass in
industrial kilns and utility coal fired boilers
– Waste to energy with highest possible
electrical efficiency
6

7. Valmet’s gasification experience
Ÿ Värö Bio gasifier
– 35 MW Biomass gasifier – 1987
– Oil replaced by biomass in limekiln
Ÿ Lahti Waste gasification plant
– 160 MW Waste gasifier – 2011
– Waste used in municipal CHP
Ÿ Vaasa Bio-gasification plant
– 140 MW Biomass gasifier – 2012
– Biomass replacing coal in utility boiler
Ÿ Gothenburg Bio-SNG plant
– 32 MW Wood gasifier – 2013
– Biomass to replace NG
7

8. Latest news: two CFB gasifiers to OKI in
Indonesia for lime kiln
Fuel: Eucalyptus bark, screening fines
8

9. Replacing coal with
biomass: Vaasa
biogasification

10. Replacement import coal with local
biomass in utility boiler
Vaskiluodon Voima, Finland
Ÿ Circulating fluidized bed gasifier plant
that converts biomass into product gas
Ÿ Gasifier added to existing power plant to
replace 40% of coal with biomass
Key results
Ÿ Fossil fuels can be partly replaced with
renewable energy
Ÿ Reduction of carbon dioxide emissions
by about 230,000 tons per year
Ÿ Existing assets utilized and power plant
life-time significantly extended
10
CO2 savings
correspond to
the emissions of
a European city
with 30,000
inhabitants1)
1) Source: European Commission's Joint Research Centre
Gasification
Finland
oktober 7, 2014

11. Supply of Biomass
11
The fuel is procured within 100
kilometers of the plant:
• Wood (forest harvest residues)
90% (50–100%)
• Straw and reed canary grass 0%
(0–5%)
• Peat (milled) 10% (0–50%)
Amount:
• 900 GWh/a
• 30 trucks a day

12. Main project drivers
Main drivers for the project:
Ÿ To replace large amount (25-40%) of coal with renewable CO2-neutral fuel.
‒ The gasification plant will be run on full capacity and coal firing will be
reduced on boiler part loads.
Ÿ To extend the lifetime of the existing power plant unit
Ÿ To achieve capability to use multiple fuels (fuel cost optimization)
Ÿ To guarantee a cost-effective district heating solution

13. Investment cost and benefits
Ÿ Total investment cost 40 M€. State investment subsidy 10,8 M€
(Ministry of Employment and the Economy)
Ÿ Cost savings:
‒ Reduction of CO2-emission cost, reduction of CO2-emissions
up to 230 000 t/yr.
‒ Feed-in tariffs of renewable energy
‒ Reduction of the environmental taxes of district heating
Ÿ Other benefits:
‒ Lower total cost compared with construction of a new biomass power
plant and much higher efficiency
‒ Gasification compared with wood pellet firing: avoid high cost of pellet
production (around +50%) and pellet milling is avoided
‒ Local fuels - Positive effects to the local economy, 15 M€/a.
• The new activities will employ 100 people in fuel logistics
13 Vaskiluodon Voima Oy

14. Vaasa bio-gasification plant
Ÿ 140 MW biomass gasification plant
Ÿ Connected to existing 565 MW coal-fired
boiler
Ÿ Replacing 40% of annual coal
consumption with biomass
Ÿ Forestry residue with up to 50% moisture
Schedule
Ÿ Award 6/2011
Ÿ Hand Over 12/2012
Total investment < 40 M€
14

15. Valmet scope in Vaskiluodon Voima’s
gasification project
Ÿ Full scope services with total plant optimization
– Fuel receiving and handling
– Drying
– Gasification
– Boiler modifications incl. gas burners
– Automation, electrification and instrumentation
Wet biomass
Existing PC boiler
Instrumentation,
electrification
and automation
Product gas
Biomass receiving
and pre-handling Large-scale belt dryer CFB gasifier
140 MWfuel
Dried biomass
Combustion

16. VAASA BIOMASS GASIFICATION PLANT
Date 16 Author Title INTERNAL
FUEL STORAGE
AND HANDLING
PC BOILER
CFB
GASIFIER
DRYER

17. Benefits of the Valmet solution for Vaskiluoto
Low investment
cost
17
Use of multiple
fuels
Efficient use of
biomass
Reduced emissions
CO2, NOx and SOx
Short delivery time
No loss of coal
generation during
construction
Original coal
capacity still
available

18. Synthetic natural gas
from biomass: GoBiGas

19. Fuel production technology
for producing biomethane as vehicle fuel
GoBiGas Project, Göteborg
Energi AB, Sweden
Ÿ Indirect gasification of forest
residues and wood pellets to
produce synthetic natural gas
Ÿ A 20 MW demonstration plant based on
indirect gasification
Ÿ A commercial scale plant to follow
Key results
Ÿ Synthetic natural gas is comparable to
natural gas and can be used to replace
fossil vehicle fuels
19
Contributing to
Sweden’s shift
to 100%
renewable
vehicle fuels by
20301)
1) Source: Swedish Energy Agency
Synthetic
natural gas as
vehicle fuel
Sweden
oktober 7, 2014

20. 7 oktober 2014 © Valmet 20 | Author / Title

21. 7 oktober 2014 © Valmet 21 | Author / Title

22. Application of Gasification to a Biorefinery
}
Gasification: Valmet scope
Steam
Biomethane
Air
Steam
Flue gas
Wood pellets
Bed
material
Forest residues
Tar
Sulphur rich gas
Air preheater
Hot water
Hot water
CO2 to inert
gas system/
atm
Tar
GoBiGas
International Seminar on
Gasification Gothenburg 16-18
Oct 2013 Claes
Breitholtz
Source: GoBiGas
Methanation
Gasifier Combustor
Dryer
Bag filter
De-NOx
Fuel handling
Tar removal
Sulphur
removal
Tar removal Shift
Drying
Upgrading
Methanation
CO2-
removal
22

23. Gasification Island - Overview
International Seminar on Gasification Gothenburg
16-18 Oct 2013 Claes 23 Breitholtz

24. 7 oktober 2014 © Valmet 24 | Author / Title

25. 7 oktober 2014 © Valmet 25 | Author / Title

26. Highest efficiency for
energy from waste:
Lahti waste gasification

27. From coal to waste-fuelled energy
Lahti Energia Oy, Finland
Ÿ Circulating fluidized bed gasifier plant
that converts waste into product gas
Ÿ Processing of 250,000 tons of solid
recovered fuel to
– 50 MW of electricity and
– 90 MW of district heat
Key results
Ÿ Highest possible electrical efficiency
achieved from waste to energy > 31%
Ÿ Reduction of use of fossil fuels and CO2
emissions
Ÿ Avoided use of coal in CHP production
is 170,000 tonnes per year
27
3,300 railway
cars of coal
replaced by
waste-fuelled
energy
Waste
gasification
Finland
oktober 7, 2014

28. Valmet Waste Gasification
Concept
RDF
handling
Gasification
7 oktober 2014 © Valmet 28 | Author / Title
Hot gas
cleanup
Steam
generation
121 bar/540 °C
Flue gas
cleaning

29. LAHTI WASTE GASIFICATION PLANT
Turbine
7 oktober 2014 © Valmet 29 | Author / Title
Gasifier
Gas
cleanup
Old power
station
Boiler
Conveyor
Stack
APC

30. Valmet Waste Gasification
Operational experience
à Gasification RDF end 2011
à Commercial May 2012
à Capacity demonstrated
à Gasifier operation reliable
à Stable and good combustion
à Compliance with WID
à No corrosion detected
à Some filter element failures
30

31. Summary

32. Valmet gasification
Summary benefits
Ÿ Replacement of import fossil fuels with
renewable and more competitive local
biomass and waste derived fuels
Ÿ Biomass can be converted in fuel gas for
existing industrial furnaces or kilns and
utility boilers
Ÿ Biomass can be converted in SNG for use
as vehicle fuel
Ÿ Waste can be converted into clean gas for
highest efficiency EfW or co-firing
Ÿ Demonstrated in world’s largest plants
© Valmet 32 7 oktober 2014 | Author / Title