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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11247

Title: Flash pyrolysis of heavy metal contaminated hardwoods from phytoremediation: Characterisation of biomass, pyrolysis oil and char/ash fraction
Authors: STALS, Mark
CARLEER, Robert
REGGERS, Guy
Schreurs, Sonja
YPERMAN, Jan
Issue Date: 2010
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 89 (1). p. 22-29
Abstract: Flash pyrolysis of heavy metal contaminated hardwoods originating from phytoremediation is studied. Different kinds of hardwoods, i.e. Salix fragilis (crack willow), Salix jorunn ("Jorunn" willow) and Populus grimminge (Grimminge poplar) are compared in a preliminary phase. Salix fragilis scores the best on both remediation capabilities and pyrolysis characteristics. Therefore, this cultivar is chosen for in-depth research. S. fragilis stems, leaves and stems mixed with leaves are pyrolysed. The effect of the pyrolysis temperature (623, 723 and 823 K) and the use of a hot-gas filter on the yield and properties of pyrolysis oil and char/ash residue are studied. Pyrolysis of stems at 723 K yields the most pyrolysis oil; while highest char production is obtained when pyrolysing leaves at 623 K. Pyrolysis of mixed stems and leaves at 723 K yields more gas than the pyrolysis of stems or leaves at 723 K. The use of a hot-gas filter does not influence the composition of the pyrolysis oil significantly. In all the experiments performed, the pyrolysis oil main constituents are phenolics. Pyrolysis of stems at 623 and 723 K yields a pyrolysis oil which does not contain considerable amounts of heavy metals. (c) 2010 Elsevier B.V. All rights reserved.
Notes: [Stals, M.; Carleer, R.; Reggers, G.; Yperman, J.] Hasselt Univ, CMK, Lab Appl & Analyt Chem, B-3590 Diepenbeek, Belgium. [Schreurs, S.] XIOS, Dept TIW, NuTeC, B-3590 Diepenbeek, Belgium. jan.yperman@uhasselt.be
URI: http://hdl.handle.net/1942/11247
DOI: 10.1016/j.jaap.2010.05.001
ISI #: 000281930300004
ISSN: 0165-2370
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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