Scholarly record
BINDERS EFFECT ON THE FLOW PROPERTIES OF MEADOW HAY BEFORE PELLETIZATION
Abstract
The use of binders in pelletization is important not only for optimizing the mechanical properties of the pellets but also for improving their combustion behavior. Binders can affect the calorific value, ash formation and emissions during energy conversion. An important factor in efficient pellet production is ensuring appropriate flow properties of the mixture, which impact dosing uniformity, process stability and the overall energy requirements. This study investigates the effects of four binders - flour, starch, calcium carbonate, magnesium carbonate on the rheological properties of the input material. The input material was always biomass (meadow hay). Experimental mixtures of hay and binder were prepared in four weight ratios: 2%, 25%, 50%, and 75%. The flowability was evaluated using a rotary shear tester with two primary parameters: the effective angle of internal friction (AIFE) and the flow function coefficient (ffc). Results showed that both the type and concentration of the binder had a substantial effect on the mixture-s flow behavior. Organic binders (starch and flour) at lower concentrations had a relatively minor impact, at higher concentrations (above 50%), the cohesion of the material increased and the internal angle decreased slightly. In contrast, inorganic binders had a more pronounced negative effect, with even low concentrations significantly affecting flow behavior. In conclusion, it can be stated that the choice of binder and its optimized ratio are essential factors in the treatment of biomass before pelletization.
Publication Impact Profile
Publication details
References13
Stelte W., Holm J. K., Sanadi A. R., Barsberg S., Ahrenfeldt J., Henriksen U. B., Fuel pellets from biomass: The importance of the pelletizing pressure and its dependency on the processing conditions, Fuel, vol. 90, pp 3285�3290, 2011. DOI: 10.1016/j.fuel.2011.05.011.
Kaliyan N., Morey R. V., Factors affecting strength and durability of densified biomass products, Biomass and Bioenergy, vol. 33, pp 337�359, 2009. DOI: 10.1016/j.biombioe.2008.08.005.
Wang Z., Zhai Y., Wang T., Wang B., Peng Ch., Li C. Pelletizing of hydrochar biofuels with organic binders, Fuel, Vol. 280, 2020. DOI: 10.1016/j.fuel.2020.118659.
Hu Q., Shao J., Yang H., Yao D., Wang X., Chen H., Effects of binders on the properties of bio-char pellets, Applied Energy, Vol. 157, pp 508/516, 2015. DOI: 10.1016/j.apenergy.2015.05.019.
Sykorova V., Jezerska L., Sassmanova V., Honus S., Peikertova P., Kielar J., Zidek M., Biomass pellets with organic binders - before and after torrefaction, Renewable Energy, Vol. 221, 2024. DOI: 10.1016/j.renene.2023.119771.
Obi O. F., Pecenka R., Clifford M. J., A Review of Biomass Briquette Binders and Quality Parameters, Energies, vol. 15, 2022. DOI: 10.3390/en15072426.
Schulze, D., Powders and Bulk Solids: Behavior, Characterization, Storage and Flow. Springer Science & Business Media, 2007. ISBN 978-3-540-73768-1.
Mediavilla I., Esteban L- S., Fernandez M.J., Optimisation of pelletisation conditions for poplar energy crop, Fuel Processing Technology, Vol. 104, pp 7-15, 2012. DOI: 10.1016/j.fuproc.2012.05.031.
Ahmed I., Ali A., Ali B., Hassan M., Hussain S., Hashmi H., Ali Z., Soomro A., Pelletization of Biomass Feedstocks: Effect of Moisture Content, Particle Size and a Binder on Characteristics of Biomass Pellets, Research Square, 2021. DOI: 10.21203/rs.3.rs-163994/v1.
Stasiak M., Molenda M., Banda M., Horabik J., Wiacek J., Parafiniuk P., Wajs J., Gancarz M., Gondek E., Lisowski A., Oniszczuk T., Friction and Shear Properties of Pine Biomass and Pellets, Materials, vol. 13, pp 3567, 2020. DOI: 10.3390/ma13163567
Cheng Z., Leal J. H., Hartford C. E., Carson J. W., Donohoe B. S., Craig D. A., Xia Y., Daniel R. C., Ajayi O. O., Semelsberger T. A., Flow behavior characterization of biomass Feedstocks, Powder Technology, Vol. 387, pp 156-180, 2021. DOI: 10.1016/j.powtec.2021.04.004.
Stelte W., Sanadi A. R., Shang L., Holm J. K., Ahrenfeldt J., Henriksen U. B., Recent developments in biomass pelletization � a review, BioResources, vol. 7, pp 4451�4490, 2012. DOI: 10.15376/biores.7.3.4451-4490.
Cichonska P., Domian E., Ziarno M., Application of Optical and Rheological Techniques in Quality and Storage Assessment of the Newly Developed Colloidal-Suspension Products: Yogurt-Type Bean-Based Beverages, Sensors, vol. 22, pp 8348, 2022. DOI: 10.3390/s22218348.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.