Physical and Chemical Characterization of Sorghum Bagasse

Abstract:

The steady rise in emissions from burning fossil fuels has caused increasing concern about their environmental impact. Lignocellulosic biomass can produce alternatives for gasoline and diesel by thermal conversion. Sorghum is used for animal feed since the feed value of its grain is similar to corn. The grain has more protein and fat than corn, but is lower in vitamin A. When compared with corn on a per pound basis grain sorghum feeding value ranges from 90% to nearly equal to corn. The grain is highly palatable to livestock, and intake seldom limits livestock productivity. Sorghum bagasse is the residue of sorghum after milling. The present work had the objective of characterizing sorghum bagasse for energetic use, especially to produce bio-oil by fast pyrolysis. The first step in pyrolysis process is the biomass characterization, since some kinds of particles are not suitable to be processed and need a previous preparation. For sorghum bagasse the performed physical analyses were: size distribution and medium diameter, and solids true density; the main chemical analyses were: ultimate analysis, proximate analysis, chemical composition and gross calorific value.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 1683-1688
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.1683
• Online since: August 2012
• Authors: Mara Rúbia Miranda, Cássia Regina Cardoso, Carlos Henrique Ataíde
• Keywords: Biomass, Characterization, Pyrolysis, Renewable Energy, Sorghum Bagasse

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