Journal
BIORESOURCE TECHNOLOGY
Volume 116, Issue -, Pages 413-420Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.03.120
Keywords
Bio-oil; Big bluestem; Hydrothermal conversion; Liquefaction
Funding
- US Department of Transportation and Sun Grant [DTOS59-07-G-00053]
- US Department of Agriculture, Abiotic Stress Program [2008-35100-04545]
- US Department of Energy [DE-EE0000620]
- North Carolina State University
- Agricultural Experimental Station of Kansas State University [12-281-J]
- NIFA [2008-35100-04545, 583293] Funding Source: Federal RePORTER
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Three ecotypes (CKS, EKS, IL) and one cultivar (KAW) of big bluestem (Andropogon gerardii) that were planted in three locations (Hays, KS; Manhattan, KS; and Carbondale, IL) were converted to bio-oil via hydrothermal conversion. Significant differences were found in the yield and elemental composition of bio-oils produced from big bluestem of different ecotypes and/or planting locations. Generally, the IL ecotype and the Carbondale, IL and Manhattan, KS planting locations gave higher bio-oil yield, which can be attributed to the higher total cellulose and hemicellulose content and/or the higher carbon but lower oxygen contents in these feedstocks. Bio-oil from the IL ecotype also had the highest carbon and lowest oxygen contents, which were not affected by the planting location. Bio-oils from big bluestem had yield, elemental composition, and chemical compounds similar to bio-oils from switchgrass and corncobs, although mass percentages of some of the compounds were slightly different. (C) 2012 Elsevier Ltd. All rights reserved.
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