کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7068947 | 1459893 | 2018 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Co-production of bio-ethanol, xylonic acid and slow-release nitrogen fertilizer from low-cost straw pulping solid residue
ترجمه فارسی عنوان
تولید بیو اتانول، اسید زایلون و کود نیتروژن آهسته آزاد از کم هزینه پودر کبالت جامد باقی مانده
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کلمات کلیدی
پیش درمان سولفیت خنثی، جامد خم شده جامد، بیو اتانول، اسید کایلیکون، کود آلی نیتروژن آهسته،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
A novel bio-refinery sequence yielding varieties of co-products was developed using straw pulping solid residue. This process utilizes neutral sulfite pretreatment which under optimal conditions (160â¯Â°C and 3% (w/v) sulfite charge) provides 64.3% delignification while retaining 90% of cellulose and 67.3% of xylan. The pretreated solids exhibited excellent enzymatic digestibility, with saccharification yields of 86.9% and 81.1% for cellulose and xylan, respectively. After pretreatment, the process of semi-simultaneous saccharification and fermentation (S-SSF) and bio-catalysis was investigated. The results revealed that decreased ethanol yields were achieved when solid loading increased from 5% to 30%. An acceptable ethanol yield of 76.8% was obtained at 20% solid loading. After fermentation, bio-catalysis of xylose remaining in fermentation broth resulted in near 100% xylonic acid (XA) yield at varied solid loadings. To complete the co-product portfolio, oxidation ammoniation of the dissolved lignin successfully transformed it into biodegradable slow-release nitrogen fertilizer with excellent agricultural properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 250, February 2018, Pages 365-373
Journal: Bioresource Technology - Volume 250, February 2018, Pages 365-373
نویسندگان
Chen Huang, Arthur J. Ragauskas, Xinxing Wu, Yang Huang, Xuelian Zhou, Juan He, Caoxing Huang, Chenhuan Lai, Xin Li, Qiang Yong,