Mathematical modelling of wooden biomass torrefaction

• Autorzy: Stepień P. , Białowiec A.

Identyfikatory

DOI

10.12841/wood.1644-3985.199.06

• Języki publikacji: EN

Abstrakty

EN

Torrefaction is used for initial biomass valorisation prior to energetic utilization. The produced biocarbon is characterized by high energy density, and high calorific value. Moreover, it contains less moisture, and has hydrophobic character. Due to that, this technology is being found perspective, but the relation between process parameters, and biomass, and biocarbon properties should be still optimized. The presented work shows the mathematical modelling of torrefaction of the wooden biomass particle. The dependence between technological parameters (process temperature, and retention time), and biomass properties (density, calorific value of the biomass), and calorific value of biocarbon has been examined. The parameters of II^nd degree polynomial functions, allowing the estimation of the required retention time or required process temperature to achieve desired calorific value of biocarbon have been determined. The modelling showed, that the process temperature and retention time are the most significant factors influencing the torrefaction efficiency. Also, the calorific value of biocarbon may be an important parameter, but biomass properties are not significant, with recommendation to neglect the biomass density.

Słowa kluczowe

EN

torrefaction; biomass valorisation; mathematical modelling; technological parameters; biomass properties; biocarbon

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2017
• Tom: vol. 60, nr 200
• Strony: 51--65
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Stepień P.

• Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland

autor

Białowiec A.

• Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland

Bibliografia

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• Bridgeman T.G., Jones J.M., Shield I., Williams P.T. [2008]: Torrefaction of reed canary grass, wheat straw and willow to enhance solid fuel qualities and combustion properties. Fuel 87: 844-856. DOI 10.1016/j.fuel.2007.05.041
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• Felfli F.F., Soler P.B., José D.R. [2005]: Mathematical modeling of wood and briquettes torrefaction. Procedings of: 5th Encontro de Energia no Meio Rural 6165: 13083-13970
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• Prins M.J. [2005]: Thermodynamic analysis of biomass gasification and torrefaction. Technische Universiteit Eindhoven, Netherlands [PhD thesis]
• Pudlik W. [2012]: Wymiana i wymienniki ciepła (Exchange and interchangers of heat). Politechnika Gdańska, Gdańsk
• Soponpongpipat N., Sittikul D., Comsawang P. [2016]: Prediction model of higher heating value of torrefied biomass based on the kinetics of biomass decomposition. Journal of Energy Institute 89: 425-435. DOI: 10.1016/j.joei.2015.02.011
• van der Stelt M.J.C. [2010]: Chemistry and reaction kinetics of biowaste torrefaction. Technische Universiteit Eindhoven. DOI: 10.6100/IR695294
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).