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Title:
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High efficient co-production of Fischer-Tropsch (FT) transportation fuels and Substitute Natural Gas (SNG) from biomass
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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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1-2-2004
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ECN report number:
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Document type:
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ECN-C--04-001
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ECN publication
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Number of pages:
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Full text:
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64
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Download PDF
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Abstract:
The technical, economic, and ecological feasibility was studied of theco-production of 50 PJ of Fischer-Tropsch (FT) transportation liquids
and 150 PJ of substitute natural gas (SNG) per year (i.e. 10% of the
2001 Dutch consumption). In the co-production concepts part of the SNG
is produced by methanation of the FT off-gas, which already contains
significant amounts of C1-C4 SNG compounds. The additional required
SNG is produced by dedicated methanation of part of the gasification
product gas. Co-production results in higher biomass-to-fuel efficiencies,
lower biomass input requirements, and less negative net present values
(NPVs) compared to the case of complete separate production of both
fuels. Co-production concepts based on pressurised oxygen-blown and
indirect gasification result in the lowest CO2 emission reduction costs
of about 100 ?/tonne. Co-production of ?green? Fischer-Tropsch transportation
fuels and ?green? SNG will be an economic feasible process in the Netherlands,
when both energy carriers receive the same tax exemptions as currently
is given to green electricity or at crude mineral oil prices above 56
$/bbl.
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