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Applied energy v.212, 2018년, pp.1489 - 1500   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols

Trubetskaya, Anna (Thermochemical Energy Conversion Laboratory, Umeå ) ; Brown, Avery (University, 90187 Umeå, Sweden ) ; Tompsett, Geoffrey A. (Chemical Engineering Department, Worcester Polytechnic Institute, 01609 Worcester, MA, USA ) ; Timko, Michael T. (Chemical Engineering Department, Worcester Polytechnic Institute, 01609 Worcester, MA, USA ) ; Kling, Jens (Chemical Engineering Department, Worcester Polytechnic Institute, 01609 Worcester, MA, USA ) ; Broström, Markus (Center for Nanoscopy, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark ) ; Andersen, Mogens Larsen (Thermochemical Energy Conversion Laboratory, Umeå ) ; Umeki, Kentaro (University, 90187 Umeå, Sweden ) ;
  • 초록  

    Abstract This study presents the effect of lignocellulosic compounds and monolignols on the yield, nanostructure and reactivity of soot generated at 1250 ° C in a drop tube furnace. The structure of soot was characterized by electron microscopy techniques, Raman spectroscopy and electron spin resonance spectroscopy. The CO 2 reactivity of soot was investigated by thermogravimetric analysis. Soot from cellulose was more reactive than soot produced from extractives, lignin and monolignols. Soot reactivity was correlated with the separation distances between adjacent graphene layers, as measured using transmission electron microscopy. Particle size, free radical concentration, differences in a degree of curvature and multi-core structures influenced the soot reactivity less than the interlayer separation distances. Soot yield was correlated with the lignin content of the feedstock. The selection of the extraction solvent had a strong influence on the soot reactivity. The Soxhlet extraction of softwood and wheat straw lignin soot using methanol decreased the soot reactivity, whereas acetone extraction had only a modest effect. Highlights Biomass soot samples were generated at fast pyrolysis conditions in a DTF at 1250 °C. The reactivity of soot was determined in 40 vol.% CO 2 gasification by TGA. The most reactive was cellulose soot with the largest separation distance. The least reactive CH 3 OH extracted lignin soot had the smallest separation distance. The particle size and radical concentration of soot influenced the reactivity less.


  • 주제어

    Fast pyrolysis .   Lignocellulosic compounds and monolignols .   Soot .   Reactivity .   Nanostructure.  

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