Kinetic Modelling of the Pyrolysis of Biomass for the Development of Charcoal Briquette

29th Symposium of Malaysian Chemical Engineers 2016

Idris, Y.R.^1 ; Bayu, H.T.^1 ; Wintoko, J.^1 ; Murachman, B.^1 ; Yuliansyah, A.T.^1 ; Purwono, S.^1

Chemical Engineering Department, Universitas Gadjah Mada, Kampus UGM, Jalan Grafika No. 2, D.I. Yogyakarta, Indonesia^1

关键词: Biomass pyrolysis;    Carbon elements;    Energy source;    Isothermal conditions;    Kinetic modeling;    Kinetic modelling;    Pyrolysis process;    Secondary decomposition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012063/pdf
DOI  :  10.1088/1757-899X/206/1/012063

来源: IOP

【 摘 要 】

Waste of biomass can be utilized as an energy alternative such as a charcoal briquette. In the waste of biomass, there is carbon element bonded in the cellulose which can be utilized as an energy source of solid fuel. Charcoal briquette from waste of biomass can be developed via pyrolysis process. Terminalia Catappa L. and Myristica fragrans (nutmeg seeds shells) shells were used as raw material for the manufacture of charcoal briquettes. Pyrolysis process took place under isothermal conditions at a temperature of 350°C, 400°C, 450°C, 500°C, and 550°C with variation of times were 30 minutes, 60 minutes and 90 minutes. During the pyrolysis process, there were three main components observed, namely liquid (bio oil), gases and solids (char). Data obtained for measuring the kinetics of liquids and gases were taken in interval of 5 minutes. The results showed that the rise in temperature will increase the rate of pyrolysis process and increase the yield of gases and liquids as well as lowering the yield for solid. The best fitted kinetic model is the representation of biomass pyrolysis process involving secondary decomposition of the liquid. The results of briquette development showed that these two biomasses can be used as raw material of energy alternative.