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Nuon Future plan: Magnum Project
Presentation RWTH-Aachen (02.05.2006)
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
Subjects
•Introduction Nuon•Definition and reasons for the Magnum Project•Overall technical data of the Magnum Power Station•The predecessor: the Nuon Buggenum Power Station•Lesson Learned from the operation of the Nuon Buggenum Power Station
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What is Nuon?Nuon is a Dutch energy company, market leader in the
Netherlands
Heat customers100% = 0.2 mln
Electricity customers100% = 7 mln
Gas customers100% = 6.4 mln
Green electricity customers 100% = 2.4 mln
ESSENTDELTA
ENECONuon
ESSENT
Nuon
Nuon
1) Market share for gas and electricity are based on the number of connections
Source: EnergieNed ‘Energy in the Netherlands 2004’, Company reports
Eneco25%
Nuon34%
Delta2%
Essent29%Others
10%
Eneco28%
Nuon29%
Others11%
Delta3%
Essent26%RWE
3%
Eneco41%Nuon
39%
Essent20%
Eneco18%
Others18%
Essent38%
Nuon26%
Presentation RWTH-Aachen (02.05.2006)
• Nuon is third generator in Netherlands
• 16 ‘grey’ generation assets on 9 premises in 4 clusters; Total installed capacity about 3500 MWe
• Efficient, dominantly gas fired generation
• Production of heat for district heating in Utrecht, Nieuwegein, Amsterdam-Zuidoost, and steam for Corus
• Several renewable assets in 7 European countries, dominantly wind; installed capacity about 500 MWe
• Syngas development and operational experience: Buggenum (coal, 250 MWe), Velsen (BFG, 400 MWe), IJmond – JV Nuon/Corus (BFG, 250 MWe)
Cluster Amsterdam
Cluster Utrecht
Cluster Oost
Renewables
Nuon - generation portfolio overview
Presentation RWTH-Aachen (02.05.2006)
MAGNUM Project TeamAugust 2005
Why the MAGNUM PROJECT?
Establish sound investment decision for the Magnum Power Station.
What is the Magnum Power Station?•multi-fuel, highly flexible power station;•very large capacity (1200 MWe);•net efficiency >= PC power station; •superior environmental performance; •(future) CO2-capture readiness;•year 2010/2011: connected to the E-grid;•based on the Buggenum power station;•“Lessons Learned” incorporated in design.
Presentation RWTH-Aachen (02.05.2006)
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
Rationale for the Magnum Project
•Nuon must build at least 1200 MWe new power production capacity:•replacement of old power stations with rather moderate efficiency;•growth in electricity consumption.
•IGCC (entrained bed technology) offers superior production and trading opportunities:
•can gasify a multitude of fuels with high efficiency and without operational problems;•can therefore adequately respond to changes in fuel market prices; •can produce both base load and peak load E-products;•can co-gasify large amounts of renewables (subsidies).
•Best Available Technology for Power Production with CO2-capture:•moderate efficiency losses when CO2 is captured;
•Best Available (Environmental) Technology :•SO2 removal: >99 %;•NOx-emission: can comply to requirements beyond year 2015;•dust: negligible;•heavy metals: emissions: Ni: 1.5%; As: 1%; rest negligible.
By-p
rod
uc
ts
CO
2
Entrained flow gasifier Wet gas cleaning
Acid removalWaste water treatment
Demin water production
Maximum syngas production 900 –1200 MWth
Combined Cycle Dual fueled Gas Turbines (Syngas and/or Natural gas fired)5 x 250 MW CC Units
Total Heat Input 2600 MWthTotal Electrical Output 1200 MWe
Simplified BFD of the Magnum Power StationUltimate design subject to change.
Oxygen and Nitrogen production
Gasifier(# units)
CC(# units)
Power
Nat.G
as
Air Separation
Unit
Steam / Heat
Emissions
N2
Syngas
Power
Air
O2
Coal
Sec. Fuels
By-p
rod
uc
ts
Section 1: Gasification
Section 2: Air Separation
Section 3: CCGT
Gas cleaning
Steam
CO2capture
Solid BiomassC
he
mic
als
N2
Co
olin
g W
ate
r
Ch
em
ica
ls
Presentation RWTH-Aachen (02.05.2006)
Nuon Power Buggenum BV
• Net Output: 250 [MWe]
• Coal input: 2000 [t/d ]
• Shell Gasification Technology
• Gas turbine: Siemens V94.2 Start up 1993
• Ramp speed: 3.5 [MWe/min]
Presentation RWTH-Aachen (02.05.2006)
The Predecessor: the Nuon Buggenum IGCC Power Station
Coal Milling and Drying
Coal Dust Feeding
Coal Gasification Syngas Dedusting/Dehalogenation
Syngas Desulphurisation
Clean Gas Conditioning/Power Production
Presentation RWTH-Aachen (02.05.2006)
Simplified Process Flow Diagram of the Nuon Buggenum Power Station
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
“Lessons Learned” from Nuon Buggenum Power Station Operation; Technical overview
Technical Problem Areas:•Syngas Production/Treating•Waste Water Production•Combined Cycle/ Air Separation Unit
•Work Done:•5000 plant design changes!
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
“Lessons Learned” from Nuon Buggenum Power Station Operation; General Overview
Problems encountered•Mechanical problems•Process problems; process control problems•Organisational problems
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
“Lessons Learned” from Nuon Buggenum Power Station Operation; Mechanical/Material Problems
Gasification Island•Thermal stresses caused by non-flexible tube-vessel penetration•Severe erosion/corrosion problems in gasification water systems •Severe corrosion in syngas scrubber•Severe damage of structures with ceramic lining •Flaws in the construction of the dust filter
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
“Lessons Learned” from Nuon Buggenum Power Station Operation.
Process problems; process control problems
Gasification Island•Coal dust feeding problems •Slagging problems in gasifier•Degradation of H2S-absorbent•Widespread scaling in waste water systems
Combined Cycle Unit/ Air Separation•Combustion instabilities in gas turbine•Product purity of oxygen/nitrogen
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
“Lessons Learned” from Nuon Buggenum Power Station Operation. Results
0
2000
4000
6000
8000
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
ho
urs
/ y
ear
Syngas + Natural gas
Syngas only
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
Conclusions
Nuon regards IGCC as the best option for a future new to build large power station. The reasons are that: •IGCC has/is:
•Superior fuel flexibility•Best Available Technology for power production with CO2-capture
•Best Available (Environmental) Technology •Nuon is experienced with IGCC-operation:
•“Lessons Learned” from the Nuon Buggenum Power Station will be fully implemented in the Magnum design
MAGNUM Project TeamAugust 2005
Presentation RWTH-Aachen (02.05.2006)
Thank You for your Attention!
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