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Open AccessArticle

Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends

1
Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750 Bandar Seri Iskandar, Perak, Malaysia
2
Department of Mechanical Engineering, University of New Brunswick, 15 Dineen Drive, Fredericton, NB E3B 5A3, Canada
*
Authors to whom correspondence should be addressed.
Sustainability 2018, 10(6), 1770; https://doi.org/10.3390/su10061770
Received: 6 March 2018 / Revised: 29 March 2018 / Accepted: 30 March 2018 / Published: 29 May 2018
(This article belongs to the Special Issue Sustainable Materials and Manufacturing)
Unprocessed biomass has low energy density and high transportation cost. The energy generated through biomass can be enhanced by the pelletizing technique. In order to evaluate the energy requirement for the pelletizing of agricultural biomass, three different particle sizes (150–300, 300–425, and 425–600 µm) of reed canary grass (RCG), timothy hay (TH), and switchgrass (SW) were selected in the present work. Furthermore, two woody biomasses (spruce and pine) were also considered under similar experimental conditions for comparison purposes. An Instron machine attached to an in-house built pelletizer unit was employed to produce a single pellet. The energy demand for compacting ground biomass (spruce) with a particle size of 150 µm was lower (2.07 kJ) than those required for particle sizes of 300 µm (2.24 kJ) and 425 µm (2.43 kJ). The energy required for compacting ground reed canary grass, timothy hay, and switchgrass was lower (1.61, 1.97, and 1.68 kJ, respectively) than that required for spruce (2.36 kJ) and pine (2.35 kJ), evaluated at a 159-MPa load and at temperature of about 80 °C. The energy demand for blended biomass was around 2 kJ with the pellet quality approaching that of the pellets made from woody biomass. Overall, blending helped to improve the quality of pellets and lower the compaction energy requirements. View Full-Text
Keywords: biomass pellet; energy of compaction; energy analysis; agricultural biomass; biomass blends biomass pellet; energy of compaction; energy analysis; agricultural biomass; biomass blends
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MDPI and ACS Style

Yub Harun, N.; Parvez, A.M.; Afzal, M.T. Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends. Sustainability 2018, 10, 1770. https://doi.org/10.3390/su10061770

AMA Style

Yub Harun N, Parvez AM, Afzal MT. Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends. Sustainability. 2018; 10(6):1770. https://doi.org/10.3390/su10061770

Chicago/Turabian Style

Yub Harun, Noorfidza; Parvez, Ashak M.; Afzal, Muhammad T. 2018. "Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends" Sustainability 10, no. 6: 1770. https://doi.org/10.3390/su10061770

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