کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7078457 1459982 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibitors removal from bio-oil aqueous fraction for increased ethanol production
ترجمه فارسی عنوان
حذف بازدارنده از کریستال آب زیستی برای افزایش تولید اتانول
کلمات کلیدی
لوگولوکوزان، روغن زیتون، اتانول، تخمیر مهار کننده ها،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Utilization of 1,6-anhydro-β-d-glucopyranose (levoglucosan) present (11% w/v) in the water fraction of bio-oil for ethanol production will facilitate improvement in comprehensive utilization of total carbon in biomass. One of the major challenges for conversion of anhydrous sugars from the bio-oil water fraction to bio-ethanol is the presence of inhibitory compounds that slow or impede the microbial fermentation process. Removal of inhibitory compounds was first approached by n-butanol extraction. Optimal ratio of n-butanol and bio-oil water fraction was 1.8:1. Removal of dissolved n-butanol was completed by evaporation. Concentration of sugars in the bio-oil water fraction was performed by membrane filtration and freeze drying. Fermentability of the pyrolytic sugars was tested by fermentation of hydrolyzed sugars with Saccharomyces pastorianus lager yeast. The yield of ethanol produced from pyrolytic sugars in the bio-oil water fraction reached a maximum of 98% of the theoretical yield.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 161, June 2014, Pages 379-384
نویسندگان
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