کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
230543 | 1427391 | 2014 | 8 صفحه PDF | دانلود رایگان |
• Subcritical water hydrolysis of sugarcane bagasse was conducted at 213–290 °C.
• Maximum total reducing sugars recovered was 23%.
• Approximately 60% of the sugars recovered were in the oligomeric form.
• It seems a promising technology for the recovery of sugars from sugarcane bagasse.
In this work, a subcritical water process was used for the hydrolysis of sugarcane bagasse with the aim of producing fermentable sugars. Hydrolysis kinetics was determined using a semi-batch unit equipped with a 50 mL reactor. Different sample loads (2 and 11 g), flow-rates (11, 22, 33, 44 and 55 mL/min) and temperatures (213, 251 and 290 °C) were evaluated, while maintaining constant pressure (20 MPa). The liquefaction degree of the sugarcane bagasse was not affected by water flow rate and increased with temperature; the maximum liquefaction degree was 95% for hydrolysis at 251 °C and 33 mL/min. The total reducing sugars recovered increased with flow rate up to 23%. The hydrolysis process was completed faster at higher temperatures, requiring 16 min. Maximum monosaccharides + cellobiose + cellotriose yield was 5.6% at 213 °C and 33 mL/min. Approximately 60% of the sugars recovered were in the oligomeric form.
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Journal: The Journal of Supercritical Fluids - Volume 86, February 2014, Pages 15–22