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Titel:
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Benzene and ethylene in bio-SNG production: nuisance, fuel or valuable products?
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Auteur(s):
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Gepubliceerd door:
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Publicatie datum:
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ECN
Biomassa, Kolen en Milieuonderzoek
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2-11-2011
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ECN publicatienummer:
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Publicatie type:
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ECN-M--11-092
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Conferentiebijdrage
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Aantal pagina's:
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Volledige tekst:
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34
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Download PDF
(1836kB)
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Samenvatting:
Gasification of biomass with the aim to produce Substitute Natural Gas (SNG) is best performed at temperatures around 850°C, where 50% of the combustion value of the producer gas is concentrated in hydrocarbons. After removal of the heavy hydrocarbons (i.e. tar) and sulphur components, the producer gas can be converted catalytically to a mixture of mainly methane, carbon dioxide and water. Using producer gas as intermediate instead of syngas can lead to 10% higher efficiency, as producer gas does contain a significant amount of methane already and because less heat is evolved in the conversion of the remainder than for a mixture of carbon monoxide and hydrogen.
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