Effects of Biomass Feedstock on the Yield and Reactivity of Soot from Fast Pyrolysis at High Temperatures

Anna Trubetskaya, Peter A. Jensen, Peter Glarborg, Angel D. Llamas Garcia, Kentaro Umeki, Jens Kling, Diego Gardini, Richard B. Bates, Anker D. Jensen

Research output: Contribution to conferencePosterResearchpeer-review

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Abstract

This study investigated the effect of feedstock on the yield, nanostructure and reactivity of soot. Woody and herbaceous biomass were pyrolyzed at high heating rates and temperatures of 1250 and 1400°C in a drop tube furnace. The collected solid residues were structurally characterized by electron microscopy techniques, X-ray diffraction and N2-adsorption. The reactivity of soot was investigated by thermogravimetric analysis. The results showed that the reactivity of soot, generated at 1400°C was higher than that at 1250°C for all biomass types. Wood and wheat straw soot demonstrated differences with respect to the alkali content, particle size and nanostructure. Potassium was incorporated in the soot matrix and to a significant extent influenced the soot reactivity. The particle size distribution of pinewood soot produced at 1250°C was in the range from 27.2 to 263 nm which was broader compared to that of beechwood soot (from 33.2 to 102 nm) and wheat straw soot (from 11.5 to 165.3 nm). In addition, pinewood soot particles contained mainly multi-core structures at 1250°C. The potassium content played a more important role on the soot reactivity than the particle size and nanostructure.
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventSFC program conference - Arken Hotel & Art Garden Spa in Gothenburg , Gothenburg, Sweden
Duration: 1 Feb 20163 Feb 2016
http://www.ltu.se/site/SFC/Konferenser?l=en

Conference

ConferenceSFC program conference
LocationArken Hotel & Art Garden Spa in Gothenburg
CountrySweden
CityGothenburg
Period01/02/201603/02/2016
Internet address

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