Torrefaction of densified empty fruit bunches with addition of plastics waste
2020
Hanaffi Mohd Fuad, Muhammad Ariff | Faizal, Hasan Mohd | Rahman, Mohd Rosdzimin Abdul | Latiff, Z.A.
The techniques of briquetting and torrefaction were applied to a mixture of pulverized empty fruit bunches (EFB) and shredded high-density polyethylene (HDPE) plastics with a weight ratio of 85:15. The briquettes, produced under controlled conditions, were torrefied at various torrefaction temperatures from 225 to 300°C for 30 min with a constant nitrogen flow rate of 1 L/min. The results indicate that the moisture content is reduced and calorific value is significantly improved due to torrefaction treatment. In addition, the compressive strength of the torrefied briquettes is also enhanced by the torrefaction treatment, thus revealing the important role of HDPE plastics as a good binding agent after the treatment. However, the density of the torrefied briquettes decreased with an increase in temperature. The ash content of the briquettes torrefied at 225 to 275°C can be considered competitive if compared to that of conventional solid fuels (< 5.8%). The physical and combustion properties of the torrefied briquettes are strongly affected by torrefaction temperature and mixture composition. Meanwhile, torrefaction at 300°C is not favourable due to significant physical degradation.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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