Hydrothermal conversion of big bluestem for bio-oil production: The effect of ecotype and planting location

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• 作者：Jing Gan^a ; Wenqiao Yuan^b ; ^{wyuan2@ncsu.edu} ; Loretta Johnson^c ; Donghai Wang^a ; Richard Nelson^d ; Ke Zhang^a
• 关键词：Bio-oil ; Big bluestem ; Hydrothermal conversion ; Liquefaction ; Planting location
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：July, 2012
• 卷：116
• 期：Complete
• 页码：413-420
• 文件大小：753 K

摘要

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.