Title:
Combustion of Clean Biomass at High Steam Parameters of 540°C - Results from a New 120 MWth Unit
Author(s):
Bolhàr-Nordenkampf, M., Wojik, A., Gartnar, F., Tschanun, I., Kaiser, S.
Document(s):
Paper
Abstract:
Biomass fuel exists in various forms, traditionally as wood, bark, harvesting residues sewage sludge and organic waste resulting from agricultural industry. With the actual on or near site availability of biomass fuels and the trend for independent power production the demand for reliable biomass fired power plants is increasing. To satisfy this demand, a combustion technology, which can cope with a broad fuel range as well as with low ash melting points, and is able to produce steam at high steam parameters without the risk of corrosion on the other hand, is necessary. To comply with these demands the standard bubbling fluidized bed technology normally operating in combustion mode was modified to a staged combustion concept. The first FBC-plant with such high steam parameters was successfully put in operation last year in Umeå/Sweden. The boiler, which is designed for the combustion of a mixture of wood fuels, peat Salix and energy crops, has a thermal capacity of 120 MWth which equals 37 MW electrical output. The plant can be operated between 100% and 35% load. The produced live steam at 143 bara and 543 °C is not only used for electric power production but also for district heat generation. The whole plant consists of an integrated fluidized bed boiler, an electrostatic precipitator and a SCR-system for flue gas cleaning.
Keywords:
combustion, dedicated biopower plant, fluidized bed, industrial scale application
Topic:
Plenaries
Subtopic:
Plenary session on 5 May - Wednesday
Event:
18th European Biomass Conference and Exhibition
Session:
PC1.5
Pages:
26 - 30
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-PC1.5
Price:
FREE
