Title:
Development of a Transient CFD Model for Charcoal Production in a Batch Reactor and Validation with Measurement Data
Author(s):
Blank, M., Weiß, G., Mandl, C., Knauss, G., Knautz, H., Obernberger, I.
Document(s):
Paper
Slide presentation
Abstract:
In order to facilitate the development and optimization of a batch reactor for charcoal production, a new CFD model was developed that allows a detailed description of the pyrolysis process of the biomass within the batch reactor. Focusing on computational efficiency, the model is not based on single biomass particles, but on a description of the (local) properties of the packed bed inside the reactor. The drying and pyrolysis processes are described on a local scale, such that according to the prevailing conditions (temperatures, flow) the progress of the reactions can be analyzed. To validate the CFD model, dedicated test runs were performed using a pilot-scale pyrolysis reactor, and the measurement results were compared to the simulation. The results show that the progress of conversion is very well represented, and a good agreement of temperature profiles inside the retort. The profile of mass release is in qualitative agreement with the measurements.
Keywords:
batch reactor, biomass, charcoal, modelling, pyrolysis, computational fluid dynamics (CFD)
Topic:
Biomass Conversion Technologies for Energy Carriers, Chemicals and Materials
Subtopic:
Production of thermally treated solid fuels
Event:
27th European Biomass Conference and Exhibition
Session:
3DO.6.2
Pages:
1101 - 1109
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-3DO.6.2
Price:
FREE
