posted on 2018-08-07, 14:43authored byAnna Trubetskaya, Peter Arendt Jensen, Anker Degn Jensen, Angel David Garcia Llamas, Kentaro Umeki, Peter Glarborg
Fast pyrolysis of wood and straw was conducted in a drop tube furnace (DTF)
and compared with corresponding data from a wire mesh reactor (WMR) to
study the in
uence of temperature (1000-1400) C, biomass origin (pinewood,
beechwood, wheat straw, alfalfa straw), and heating rate (103 C/s, 104 C/s)
on the char yield and morphology. Scanning electron microscopy (SEM), elemental
analysis, and ash compositional analysis were applied to characterize
the e ect of operational conditions on the solid residues (char, soot) and
gaseous products. The char yield from fast pyrolysis in the DTF setup was 3
to 7% (daf) points lower than in the WMR. During fast pyrolysis pinewood
underwent drastic morphological transformations, whereas beechwood and
straw samples retained the original porous structure of the parental fuel
with slight melting on the surface. The particle size of Danish wheat straw
char decreased in its half-width with respect to the parental fuel, whereas the alfalfa straw char particle size remained unaltered at higher temperatures.
Soot particles in a range from 60 to 300nm were obtained during fast
pyrolysis. The soot yield from herbaceous fuels was lower than from wood
samples, possibly due to di erences in the content of lignin and resin acids.
History
Publication
Fuel Processing Technology;143, pp. 118-129
Publisher
Elsevier
Note
peer-reviewed
Other Funding information
Danish Strategic Research Council
Rights
This is the author’s version of a work that was accepted for publication in Fuel Processing Tehcnology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel Processing Tehcnology, 2016, 143, pp. 118-129, https://doi.org/10.1016/j.fuproc.2015.11.002