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Title:
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Lignin fast pyrolysis: Results from an international collaboration
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Author(s):
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Nowakowski, D.J.; Bridgwater, A.V.; Elliott, D.C.; Meier, D.; Wild, P.J. de
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Published by:
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Publication date:
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ECN
Biomass, Coal and Environmental Research
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13-8-2010
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ECN report number:
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Document type:
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ECN-W--10-026
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Article (scientific)
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Number of pages:
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22
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Published in: Journal of Analytical and Applied Pyrolysis (Elsevier), , 2010, Vol.10.1016/j.jaap.2010.02.009, p.-.
Abstract:
An international study of fast pyrolysis of lignin was undertaken. Fourteen laboratories in eight different countries contributed. Two lignin samples were distributed to the laboratories for analysis and bench-scale process testing in fast pyrolysis. Analyses included proximate and ultimate analysis, thermogravimetric analysis, and analytical pyrolysis. The bench-scale test included bubbling fluidized-bed reactors and entrained-flow systems. Based on the results of the various analyses and tests it was concluded that a concentrated lignin (estimated at about 50% lignin and 50% cellulose) behaved like a typical biomass, producing a slightly reduced amount of a fairly typical bio-oil, while a purified lignin material
was difficult to process in the fast pyrolysis reactors and produced a much lower amount of a different kind of bio-oil. It was concluded that for highly concentrated lignin feedstocks new reactor designs will
be required other than the typical fluidized-bed fast pyrolysis systems.
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