Modeling the influence of potassium content and heating rate on biomass pyrolysis
journal contributionposted on 2023-02-21, 16:04 authored by Anna TrubetskayaAnna Trubetskaya, Gerrit Ralf Surup, Alexander Shapiro, Richard B. Bates
This study presents a combined kinetic and particle model that describes the effect of potassium and heating rate during the fast pyrolysis of woody and herbaceous biomass. The model calculates the mass loss rate, over a wide range of operating conditions relevant to suspension firing. The shrinking particle model considers internal and external heat transfer limitations and incorporates catalytic effects of potassium on the product yields. Modeling parameters were tuned with experimentally determined char yields at high heating rates (>200 K s−1) using a wire mesh reactor, a single particle burner, and a drop tube reactor. The experimental data demonstrated that heating rate and potassium content have significant effects on the char yield. The importance of shrinkage on the devolatilization time becomes greater with increasing particle size, but showed little influence on the char yields
PublicationApplied Energy;194, pp. 199-211
Other Funding informationKempestiftelserna.
RightsThis is the author’s version of a work that was accepted for publication in Applied Energy. 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 Applied Energy, 2017, 194, pp. 199-211, https://doi.org/10.1016/j.apenergy.2017.03.009
Department or School
- Chemical Sciences