کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
686850 1460092 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Restructuring the processes for furfural and xylose production from sugarcane bagasse in a biorefinery concept for ethanol production
ترجمه فارسی عنوان
بازسازی فرایندهای تولید فورفورال و زایلوز از باگاس نیشکر در یک مفهوم بیورفینشن برای تولید اتانول
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• Results represent an advance for industrial restructuration into biorefinery.
• The furfural yield in pilot reactor was 6 g/100 grams of sugarcane bagasse.
• The xylose yield in pilot reactor was 15.5 g/100 grams of sugarcane bagasse.

This study consisted in restructuring the processes for furfural and xylose production from sugarcane bagasse in a biorefinery concept for the residues utilization on ethanol production.The dilute acid hydrolysis conditions for furfural or xylose production were firstly established on laboratory scale and then reproduced on a 10-L bench reactor fed with direct steam. The furfural production was maximum when using a 1.25% (w/w on dry fiber) H2SO4 solution at 175 °C during 40 min; whereas the xylose production attained the best results when using a 1% (w/v) H2SO4 solution in a solid/liquid ratio of 1/4 (g/mL), and the sugarcane bagasse impregnated with the acid solution during 24 h prior to the hydrolysis reaction. Enzymatic hydrolysis of the residual solid material obtained from furfural or xylose production was performed with yields of 17.4 and 9.3 g glucose/100 g initial raw material, respectively. Subsequently, ethanol was produced from the residual solid materials obtained from furfural and xylose production with yields of 87.4% and 89.3% respectively, based on the maximum theoretical value (0.51 g ethanol per g glucose in hydrolysate). Such results demonstrated the possibility of restructuring the processes for furfural or xylose production to obtain solid residues able to be used as substrate for ethanol production by fermentation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 85, November 2014, Pages 196–202
نویسندگان
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