Devolatilization studies of oil palm biomass for torrefaction process optimization

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Daud D.
Rahman A.A.
Shamsuddin A.H.
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Institute of Physics Publishing
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Torrefaction of palm biomass, namely Empty Fruit Bunch (EFB) and Palm Kernel Shell (PKS), was conducted using thermogravimetric analyser (TGA). The experiment was conducted in variation of temperatures of 200 �C, 260 �C and 300 �C at a constant residence time of 30 minutes. During the torrefaction process, the sample went through identifiable drying and devolatilization stages from the TGA mass loss. The percentage of volatile gases released was then derived for each condition referring to proximate analysis results for both biomass. It was observed an average of 96.64% and 87.53 % of the total moisture is released for EFB and PKS respectively. In all cases the volatiles released was observed to increase as the torrefaction temperature was increased with significant variation between EFB and PKS. At 300�C EFB lost almost half of its volatiles matter while PKS lost slightly over one third. Results obtained can be used to optimise condition of torrefaction according to different types of oil palm biomass. � Published under licence by IOP Publishing Ltd.
Elaeis , Biomass , Optimization , Devolatilization , Empty fruit bunches , Mass loss , Oil palm biomass , Palm kernel shells , Proximate analysis , Residence time , Thermo-gravimetric , biomass , fruit , moisture content , residence time , sampling , thermogravimetry , volatilization , Palm oil