کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7075255 1459965 2015 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced bioethanol production from yellow poplar by deacetylation and oxalic acid pretreatment without detoxification
ترجمه فارسی عنوان
افزایش تولید بیواتانول از صنوبر زرد توسط دی آتیلینگ و پیشگیری از اسید اسکالیک بدون سم زدایی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In order to produce ethanol from yellow poplar, deacetylation was performed using sodium hydroxide (NaOH). Optimal deacetylation conditions were determined by a response surface methodology. The highest acetic acid concentration obtained was 7.06 g/L when deacetylation was performed at 60 °C for 80 min with 0.8% NaOH. Acetic acid was recovered by electrodialysis from the deacetylated hydrolysate. The oxalic acid pretreatment of deacetylated biomass was carried out and the hydrolysate directly used for ethanol production without detoxification. Ethanol yields ranged from 0.34 to 0.47 g/g and the highest ethanol yield was obtained when pretreatment was carried out at 150 °C with 50 mM oxalic acid. The highest ethanol concentration obtained from pretreated biomass was 27.21 g/L at 170 °C, using a 50 mM of oxalic acid for the simultaneous saccharification and fermentation (SSF). Overall, 20.31 g of ethanol was obtained by hydrolysate and SSF from 100 g of deacetylated yellow poplar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 178, February 2015, Pages 28-35
نویسندگان
, , ,