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A single model-free rate expression describing both non-isothermal and isothermal pyrolysis of Norway Spruce
KTH, Kemisk teknologi.ORCID iD: 0000-0002-2068-357X
KTH, Energiprocesser.ORCID iD: 0000-0001-7995-3151
KTH, Fiber- och polymerteknologi.ORCID iD: 0000-0002-0252-337x
2015 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 161, p. 59-67Article in journal (Refereed) Published
Abstract [en]

A strictly isoconversional rate expression has been derived for pyrolysis of biomass. This rate expression, derived from non-isothermal thermogravimetric experiments using heating rates 2-10 K/min, can successfully predict the conversion rates of experimental data at heating rates 1-100 K/min and quasiisothermal experiments at 539-650 K. The methodology used is based on an extension of the incremental integral method by Vyazovkin (2001). Being able to derive an intrinsic reaction rate expression from non-isothermal data, without any assumption regarding the chemical processes present, opens up for the possibility to model industrial pyrolysis reactors, with a variety of temperature profiles.

Place, publisher, year, edition, pages
Elsevier , 2015. Vol. 161, p. 59-67
Keywords [en]
Model-free, Isoconversional, Pyrolysis, Biomass, Thermogravimetry, Kinetics
National Category
Energy Engineering Chemical Sciences
Identifiers
URN: urn:nbn:se:his:diva-15875DOI: 10.1016/j.fuel.2015.08.019ISI: 000362304600008Scopus ID: 2-s2.0-84940476206OAI: oai:DiVA.org:his-15875DiVA, id: diva2:1229009
Note

QC 20151117

Available from: 2015-11-17 Created: 2018-06-29

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Moriana, Rosana

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Samuelsson, Lina N.Bäbler, Matthaus U.Moriana, Rosana
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