Biorefinery of olive pruning using various processes

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• 作者：A. Requejo^a ; S. Peleteiro^b ; G. Garrote^b ; A. Rodrí ; guez^a ; Luis Jimé ; nez^a ; ^{iq1jiall@uco.es}
• 关键词：Olive pruning ; Hydrothermal treatment ; Organosolv pulping ; Combustion ; Bioethanol
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：May, 2012
• 卷：111
• 期：Complete
• 页码：301-307
• 文件大小：209 K

摘要

Biorefinery developed involve separation of olive pruning into two parts: main (OPM) (stems > 1 cm diameter), and residual (OPR) (stems < 1 cm diameter, and leaves). OPM was submitted to hydrothermal treatment, separating: a liquid fraction (HL), rich in products of hemicelluloses decomposition, and other solid (HS), rich in cellulose and lignin. HS is subject to pulping, resulting: a liquid fraction (HPL), rich in lignin, and other solid (HPS), rich in cellulose.

Up to 42%of the polysaccharides from OPM were recovered in HL as valuable compounds. HPS can be used for the bioethanol production by saccharification and fermentation, reaching a bioethanol conversion of 90.6%of the theoretical value. In addition, HPS obtained paper with lower strength properties than those of paper obtained from OPM pulp directly.

OPR provided 18.70 MkJ/t heating values, 1094-2234 掳C flame temperature, and 45-53 掳C dew point temperature, with a cost of the unit of heat (3.20 鈧?MkJ) much lower than fossil fuels fluids.