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This seminar provides an overview of the operational experiences and challenges of biomass-based renewable technology in the Netherlands, with a focus on co-firing and torrefaction. DNV KEMA Energy & Sustainability, a global provider of energy solutions, shares insights and expertise on biomass conversion techniques.
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Biomass based renewable technology: 20 years of operational experiences from the Netherlands Seminar São Paulo: RCI visiting Brazil Hans Wassenaar 08 may 2012
About DNV KEMA Energy & Sustainability Det Norske Veritas became majority shareholder of KEMA since 1 march 2012 DNV KEMA is a company of 2,300 experts in over 30 countries around the world, KEMA is established in 1927,annual turnover in 2011 of 250 M€ Headquartered in Arnhem, the Netherlands Providing world-class, innovative solutions in the fields of business & technical consultancy, testing, inspections & certification, risk management, and verification. Committed to driving the global transition toward a safe, reliable, efficient, and clean energy future. Objective and impartial knowledge-based company, we advise and support organizations along the energy value chain DNV KEMA Energy & Sustainability is part of DNV, a global provider of services for managing risk with more than 10,000 employees in over 100 countries.
Co firing: twoavailabletechniques Gasifier 4 Coal Mills Burners Boiler 1 2 3 Pre- treatment Mills Biomass • Co-milling of biomass with coal • Separate milling coal burners • Separate milling dedicated biomass burners • Biomass gasification, • syngascombusted in furnace boiler
Currentsituation of co-firing in the Netherlands WEST FRISIAN ISLANDS GRONINGEN Leeuwarden Groningen FRIESLAND Assen DRENTHE NOORD- HOLAND Lelystad Zwolle FLEVOLAND OVERIJSSEL Amsterdam Utrecht The Hague GELERLAND UTRECHT Arnhem ZUID-HOLLAND FEDERAL REPUBLIC ROTTERDAM OF s-Hertogenbosch GERMANY NOORD-BRABANT Middelburg ZEELAND LIMBURG BELGIUM Brussels Maaskicht Bonn • Dutch coal fired power plants: 7 units, range of 400 to 630 MWe, 4000 MWe in total • Co firing a 5 locations with average of 10% (e/e) approximately 400 MWe eq. • Three supercritical coal-coal fired power plants under construction: total power of 3400 MWe Capability of 10 to 60 % (e/e) biomass co-firing • Experience in the Netherlands in more than 50 full scale trials co-firing up to 40 wt% of a wide variety of biomass and (waste) fuels with coal • Various direct and indirect co-firing routes currently in reliable, full-scale operation • Broad operational experience in co-firing with a wide variety of secondary fuels available
Torrefaction, the production of biocoal Torrefaction is essentially a biomass cracking technique. It's an additional pre-treatment step that heats the biomass to 260 – 320 ºC for up to one hour in an atmosphere of no or low oxygen content. The fibrous structure of the biomass is partially broken down. The weakened fibre structure improves the milling properties of the biomass The calorific value of the biomass increases typically from 12 – 16 MJ/kg to 18-22 MJ/kg, due to the loss of volatiles and moisture The product has lost its ability to absorb moisture. The features of torrefied biomass enable co-firing rates of more than 50% of generating output, while keeping the investments needed to co-fire biomass to a minimum.
Torrefactionoutlook • Increasing demand for larger volumes of affordable, reliable and sustainable co-firing fuel, that can meet EU sustainability criteria. • App. 40 torrefactiondemo plants in Europe and US, have to prove they are able to continuously produce large volumes of high quality torrefied product (specifications of off-takers) • As a next step multiple commercial sized (100 kton/yr) torrefaction plants will be erected for supply to Europe, especially in regions where biomass is widely available • Russia, Belarus, Ukraine, Slovakia • Brazil, Africa, Canada, US
Torrefaction opportunities DNV KEMA services • Torrefaction strategy: buy technology or product • Investment decisions, business case • Selection of torrefaction technology that best fits clients business • Selection of torrefaction supplier • Selection of EPC contractor • Process validation • Product validation • Biomass certification • Product standardization • Support business strategy • Torrefaction technology benchmark • Evaluation of initiatives and projects • Techno-economic feasibility study • Evaluation of business case • Contractor survey, coordination of tendering, owner’s representative • Pilot plant testing, factory acceptance test • Small scale combustion tests • Coordination of co-firing trials • Sustainability of total value chain Cooperation DNV KEMA, your partner in biomass
Contact: ir. Hans Wassenaar hans.wassenaar@dnvkema.com +31 26 356 2509 orvisitwww.dnvkema.com