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Effect of Glycerol on Densification of Agricultural Biomass
Authors: Emami, S., L. Tabil, and P. Adapa
Identifier: CSBE13005
Download file: https://library.csbe-scgab.ca/docs/meetings/2013/CSBE13005.pdf
Published in: CSBE-SCGAB Technical Conferences » AGM Saskatoon 2013
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Description: Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agricultural crop residues, namely, wheat, barley, oat and canola straw. Single pelleting tests were conducted to study the effect of biomass type, hammer mill screen size, and crude glycerol content, co-product of biodiesel industry, on pellet quality (density and durability) and gross heat of combustion. Four types of biomass were ground at three different hammer mill screen sizes of 6.4, 3.2 and 1.6 mm. Each biomass was mixed with three levels of glycerol of 2.5, 5.0 and 7.5% by weight. Pellets were made at a pre-set load of 4400 N (138.9 MPa) using single-pelleting unit attached to the Instron testing machine. Quality of pellets was determined by measuring pellet density, relaxed density, durability and specific energy required to make a pellet. The gross heat of combustion and ash content of pellets were also determined and compared. The highest pellet density (988-1133 kg/m3) and relaxed density (992-1142 kg/m3) were obtained from biomass ground using a hammer mill screen size of 6.4 mm. A decrease in hammer mill screen size resulted in reduced durability. The highest durability of biomass obtained from hammer mill screen size of 6.4 mm ranged from 97-100%. The durability was not affected by the glycerol level significantly. Addition of glycerol resulted in lower ash content in majority of pellets. The highest gross heat of combustion was observed in pellets made from wheat straw (38.3 MJ/kg).
Keywords: Biomass, Biofuels, Glycerol, Pelleting, Heating value
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Mots-clés:
Citation: Emami, S., L. Tabil, and P. Adapa. 2013. Effect of Glycerol on Densification of Agricultural Biomass. CSBE/SCGAB 2013 Annual Conference, University of Saskatchewan, Saskatoon, SK, 7-10 July 2013.
Volume:
Issue:
Pages -
Contributor:
Date: 2013-07-07
Technical field: Renewable Energy
Conference name: CSBE/SCGAB 2013 Annual Conference, University of Saskatchewan, Saskatoon, SK, 7-10 July 2013.
Session name: Poster
Other information:
Type: Text.Article
Format: PDF
Publication type: Poster
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agricultural crop residues, namely, wheat, barley, oat and canola straw. Single pelleting tests were conducted to study the effect of biomass type, hammer mill screen size, and crude glycerol content, co-product of biodiesel industry, on pellet quality (density and durability) and gross heat of combustion. Four types of biomass were ground at three different hammer mill screen sizes of 6.4, 3.2 and 1.6 mm. Each biomass was mixed with three levels of glycerol of 2.5, 5.0 and 7.5% by weight. Pellets were made at a pre-set load of 4400 N (138.9 MPa) using single-pelleting unit attached to the Instron testing machine. Quality of pellets was determined by measuring pellet density, relaxed density, durability and specific energy required to make a pellet. The gross heat of combustion and ash content of pellets were also determined and compared. The highest pellet density (988-1133 kg/m3) and relaxed density (992-1142 kg/m3) were obtained from biomass ground using a hammer mill screen size of 6.4 mm. A decrease in hammer mill screen size resulted in reduced durability. The highest durability of biomass obtained from hammer mill screen size of 6.4 mm ranged from 97-100%. The durability was not affected by the glycerol level significantly. Addition of glycerol resulted in lower ash content in majority of pellets. The highest gross heat of combustion was observed in pellets made from wheat straw (38.3 MJ/kg).
Keywords: Biomass, Biofuels, Glycerol, Pelleting, Heating value
Résumé:
Mots-clés:
Citation: Emami, S., L. Tabil, and P. Adapa. 2013. Effect of Glycerol on Densification of Agricultural Biomass. CSBE/SCGAB 2013 Annual Conference, University of Saskatchewan, Saskatoon, SK, 7-10 July 2013.
Volume:
Issue:
Pages -
Contributor:
Date: 2013-07-07
Technical field: Renewable Energy
Conference name: CSBE/SCGAB 2013 Annual Conference, University of Saskatchewan, Saskatoon, SK, 7-10 July 2013.
Session name: Poster
Other information:
Type: Text.Article
Format: PDF
Publication type: Poster
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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