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Title:
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Mee-/bijstookpotentieel biomassa in kolencentrales en aardgas-gestookte installaties: bepaling van de milieutechnische- en financieel-economische haalbaarheid
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Author(s):
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Published by:
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Publication date:
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ECN
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1-11-2000
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ECN report number:
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Document type:
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ECN-C--00-103
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ECN publication
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Number of pages:
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Full text:
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176
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Download PDF
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Abstract:
The main goal of the Dutch Renewable Energy Policy is that in 2020 10% ofthe total energy consumption has to be provided by renewable energy sources.
Cofiring of biomass and waste in conventional coal and natural gas fired
power plants, and natural gas fired installations, is expected to play an
important contribution to the short-term market introduction of biomass and
waste based conversion technologies in a technical, environmental, and
economic attractive way. In this study the total technical, environmental and
economic cofiring potential for biomass and waste in the Netherlands is
analysed. The following questions have been addressed: (1) the total current
and future availability and contractability of biomass and waste materials
for energy purposes, (2) the concepts that can be used to cofire the large
variety biomass and waste materials (direct cofiring, indirect cofiring,
cofiring by upstream gasification, cofiring by upstream pyrolysis, cofiring
by upstream Hydro-Thermal-Upgrading, and cofiring by upstream combustion with
downstream steam-side integration), (3) technical constraints that limit the
total cofiring potential, (4) environmental constraints that limit the total
cofiring potential (EU air emission constraints, quality and commercial
applicability of co-produced solid residues), (5) financial-economic
constraints, and (6) the costs of the avoided CO2-emissions. It is concluded
that cofiring indeed has the potential to play a major contribution to the
future renewable energy based energy supply system in the Netherlands. For
cofiring of relatively clean biofuels in conventional coal-fired power plants
direct cofiring is preferable, followed by indirect cofiring and upstream
gasification without additional fuel gas clean-up. For cofiring of more
contaminated biofuels upstream gasification with (advanced) fuel gas clean-up
and upstream combustion with steam-side integration have been identified as
the most promising concepts. For cofiring in natural gas fired
combined-cycles, upstream gasification with advanced fuel gas clean-up has
been identified as the only applicable technology. 49 refs.
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