The thermal history of char as disclosed by carbon isotope ratios

Helge Egsgaard, Per Ambus, Jesper Ahrenfeldt, Ulrik Birk Henriksen

Research output: Contribution to conferencePosterResearch


In laboratory experiments, biomass char was produced under controlled conditions using wood chips from French pinewood. Different char qualities were obtained by pyrolysing the biomass at similar heating rates with end-temperatures ranging from 250 to 1000 o C. The char was analysed by flash pyrolysis and isotope ratio mass spectrometry. The results demonstrate that the temperature history of the char is reflected in the fine variation of carbon isotopes. The compound classes responsible for the variation were identified. Key words: Isotope ratio, flash pyrolysis, hot gas cleaning
Original languageEnglish
Publication date2005
Publication statusPublished - 2005
Event14th European Biomass Conference: Biomass for Energy, Industry and Climate Protection - Paris, France
Duration: 17 Oct 200521 Oct 2005
Conference number: 14


Conference14th European Biomass Conference
Internet address


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