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Title:
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Biomass cofiring potential and experiences in the Netherlands
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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-RX--00-035
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Other
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Number of pages:
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Full text:
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18
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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-fired power plants, and
natural gas fired installations, is expected to contribute substantially to
the short-term market introduction of biomass and waste based power
production technologies in a technical, environmental, and economic
attractive way. In this paper the total technical, environmental and economic
cofiring potential for biomass, and waste in the Netherlands is analysed. An
overview is given of current and future cofiring activities in the
Netherlands. Furthermore, the following questions are 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 of 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), and (5) financial-economic constraints. 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 co-firing 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. 8 refs.
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