A single model-free rate expression describing both non-isothermal and isothermal pyrolysis of Norway Spruce
2015 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 161, 59-67 p.Article in journal (Refereed) Published
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
[Samuelsson, Lina N.; Babler, Matthaus U.] KTH Royal Inst Technol, Dept Chem Engn & Technol, SE-10044 Stockholm, Sweden. [Moriana, Rosana] KTH Royal Inst Technol, Dept Fibre & Polymer Technol, SE-10044 Stockholm, Sweden., 2015. Vol. 161, 59-67 p.
Model-free, Isoconversional, Pyrolysis, Biomass, Thermogravimetry, Kinetics
Energy Engineering Chemical Sciences
IdentifiersURN: urn:nbn:se:kth:diva-176322DOI: 10.1016/j.fuel.2015.08.019ISI: 000362304600008ScopusID: 2-s2.0-84940476206OAI: oai:DiVA.org:kth-176322DiVA: diva2:871911
QC 201511172015-11-172015-11-032016-05-24Bibliographically approved