Drying and Particle Size Characteristics of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) Wood Sawdusts at Different Temperatures

Abstract

The drying and particle size characterization of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) hardwood sawdusts were investigated at temperatures 80 ºC, 90 ºC and 105 . The experimental drying data were modeled using eighteen existing drying models. The results showed that the modified Henderson and Pabis model offered the best fit to the drying curves of Danta and Hard Cross sawdusts. The experimental data obtained from the particle size distribution of both the samples were fitted into two most commonly used mathematical models—Rosin-Rammler (RR) and Gates-Gaudin-Schuhmann (GGS) models. The values of the correlation coefficients obtained from fitting the experimental data into those models, showed that RR models gave a better description of the experimental data as compared to GGS model. Furthermore, the results of the particle size distribution analyses revealed that an average value of 94% of Danta and 72% of Hard Cross particles was less than 1 mm in size. Therefore, both Danta and Hard Cross sawdust needs no further grinding for bio-oil production.   Keywords: pretreatment, sawdust, drying, particle size, bio-oil Cite this Article Edem UB, Okorie O, Edeh I et al. Drying and Particle Size Characteristics of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) Wood Sawdusts at Different Temperatures. Journal of Alternate Energy Sources and Technologies. 2016; 7(1): 30–38p.