Projects in NRW. Development of Power plant technology at the Ruhr area using the example of Evonik Steag

Transcription

1 Projects in NRW Development of Power plant technology at the Ruhr area using the example of Evonik Steag Dr. Wolfgang A. Benesch Director Energy Technologies EVONIK Energy Services, Germany

2 Our Background Adjustment of RAG Group starting in 2005 RAG Aktiengesellschaft Sales: ~ 22 billion Employees: ~ (each in 2005) Energy Chemicals Real Estate Mining STEAG Degussa RAG Immobilien Deutsche Steinkohle RAG Coal International Power Generation Gas Distribution Decentralized Energy Supplies Coal Trading Technology Specialties Consumer Solutions Specialty Materials Residential Real Estate Land Development / Commercial Real Estate Real Estate Services Production of Coal Production of Coke Mining Technology Tar Refining

3 Evonik Today Business Areas Chemicals Energy Real Estate Focus: specialty chemicals A global leader 2009 sales: 10.0 billion Leading market positions in over 80% of sales Market-driven R&D and modern innovation management Over 100 production facilities in some 30 countries Focus: hard coal-fired power plants and renewable energies A technology leader in planning, building and operating power plants 2009 sales: 2.6 billion Grid-independent power producer with around 9,500 MW installed global cap. Strong position in the fields of biomass and geothermal energy in Germany Focus: residential property One of the largest private residential property companies in Germany Manages about 60,000 own residential units plus a 50% stake in THS with more than 75,000 units 2009 sales: 0.4 billion Active property owner with strong regional focus Power Renewable Energies District Heating Energy Services Trading Power Minerals Immobilien 3%

4 STEAG History at the Ruhr area Some Milestones 1937 Steag had been founded in Essen, main background was the use of the waste coal of the local mines for power generation 1940 Commissioning of the first power plant in Lünen (4x45MW) 1957 commissioning of 1st unit in Walsum with 68MW capacity MW units in in Lünen and Herne 1969 Test of FGD process in Lünen 1970/71 350MW units in West 1981/82 710MW /747MW units in Voerde / Bergkamen 1988 retrofit of FGD and following DENOx in all units MW supercritical unit in Herne 2006 commissioning of biomass pp Lünen MW Walsum 10 supercritical, highest efficiency under comparable conditions

5 Steag Power Plants in the Rhine - Ruhr Region Voerde 2,120 MW Lippe Lünen 500 MW Bergkamen 747 MW Voerde MW i Rhine Walsum 600 MW Duisburg Essen Wesel- Datteln Canal Herne 950 MW Ruhr Dortmund- Ems Canal Dortmund Datteln- Hamm Canal Walsum 600 MW i Herne 950 MW i Lünen 500 MW i Bergkamen 747 MW i

6 Platzhalter Bild Environmental friendly power plants in a green surrounding

7 Lünen pp roots of Steag 1937 slag tap boiler technology development of ESP, FGD, DENOX technology coal dust ignition system 170MW IGCC railway electricity generator Commissioning of 4 x 45 MW 1954 Commissioning of 50 MW unit 1962 Commissioning of 150 MW unit Initial test fd activated carbon FGD 1969 Commissioning of 350 MW unit 1973 Commissioning of 170 MW IGCC 1974 Pilot plant for lime stone FGD 1988 Commissioning of FGD 1989 Commissioning of DENOX 2003 District heat supply

8 Herne pp 1st supercritical unit of Steag commissioned 1989 considerable amount of district heating operating as flare for coke oven plant fuel staging for primary NOx reduction extensive SNCR testing co combustion 1962/63 Commissioning of units 1 and 2 with 150 MW each 1966 Commissioning of unit 3 with 300 MW 1989 Commissioning of unit 4 (500 MW)

9 Evonik Herne IV supercritical power station Single air flue gas path Burner size 106 MW th Burners 12 Fuel high ash content hard coal (up to 35% of ash) from Ruhr area

10 Co combustion of bone meal and sewage sludge in Evonik Power plant Herne 3

11 Voerde pp biggest Steag site Voerde unit A+B together with RWE after 20 years of FGD operation retrofit of 2nd generation FGD flexible operation pf big units 1970/71 Commissioning of units 1 and 2 of the power plant West, 350 MW each 1982/85 Commissioning of unit A+B of the Voerde power plant (710 MW) with FGD 1987 Retrofitting of the power plant West with a flue gas desulfurization system 1989 Retrofitting of both power plants with nitrogen oxide reduction systems 2005 Partial modernization of flue gas desulfurization system, with capacity increase (2 x 51 MW) 2006 Retrofitting of the power plant West with capacity increase (2 x 6 MW)

12 Voerde pp Boiler types

13 Typical load profile Evonik STEAG 350MW power plant : : : : : : : : : : : : : : : :00 kwh : : : : : : :00

14 Flexibility in dynamic behavior Load fluctuations during heavy wind periods source: VGB Kongress 2007, Lambertz Increase of fluctuating renewable energy sources as well as economical requests ask for higher flexibility of modern fossil fired steam power plants.

15 Walsum pp start as a typical mine mouth power station highest reliable steam supply for the neighboring paper mill reuse of CO 2 in a small scale for paper industry (Precipitated Calcium Carbonate) currently commissioning of the most modern hard coal fired power station in the world for cooling tower operation Erection of first generators for the mine 1957 Commissioning of the first classical single unit 6 with 68 MW capacity 1959/60 Commission of units 7 and 8 with 150 MW 1988 Commissioning of unit 9 (410 MW), decommissioning of units 6 and 8, refitting of the power plant with FGD and DENOX 2010 Commissioning of 790 MW unit (CCEC)

16 Biomass pp Lünen biggest of 11 Steag biomass power plants Steag is gathering broad experience in single and cocombustion of biomass 2006 Commissioning of the 20MW el unit main fuel: different kinds of wood

17 Evonik Energo Mineral Sp. Zo.o. based in Katowice, Poland Founded 2001; start of the operative business in Long-term contracts for the disposal of by-products from 9 power stations all over Poland. Strategic investments in infrastructure and silo installations at the power stations are planned to support the marketing of fly ash. Dr Benesch Evonik 3 / 2010 Power Minerals Seite 17

18 Evonik New Energies in Poland Heat and Electricity supply of industrial customers, use of mine gas Dr Benesch Evonik 3 / 2010 Power Minerals Seite 18

19 Conclusion The Rhine Ruhr area had been dominated over decades by mine and steel industry Based on this boundary conditions local power plant technology developed mainly based on local, high ash content hard coal In the last 30 years the image is changing Coming from small mine mouth power plants to big stand alone units (economy of scale) Slag tap and dry bottom ash boiler technology for high ash content coals had been developed Switch from local to imported coal Environmental friendliness had been insured by installation of high sophisticated ESP, FGD and DENOX technology IGCC as well as CO 2 reuse had been tested Use of biomass as a fuel is helpful to reduce CO 2 emissions, this is done e.g. successfully in Lünen biomass pp Dr. Benesch 5 / 2010

20 Dr. Benesch 5 / 2010