کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11023703 | 1701254 | 2019 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combined dilute hydrochloric acid and alkaline wet oxidation pretreatment to improve sugar recovery of corn stover
ترجمه فارسی عنوان
پیشگیری از اکسیداسیون رقیق اسید هیدروکلریک و رقیق شده قلیایی برای بهبود بازیابی قند ذرت
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Two-stage dilute hydrochloric acid (DA)/aqueous ammonia wet oxidation (AWO) pretreatment was used to recover the sugars of corn stover. The morphology characterizations of samples were detected by SEM, BET and SXT. The results showed that DA-AWO process demonstrated a positive effect on sugar recovery compared to AWO-DA. 82.8% of xylan was recovered in the first stage of DA-AWO process at 120â¯Â°C for 40â¯min with 1â¯wt% HCl. The second stage was performed under relative mild reaction conditions (130â¯Â°C, 12.6â¯wt% ammonium hydroxide, 3.0â¯MPa O2, 40â¯min), and 86.1% lignin could be removed. 71.5% of glucan was achieved with a low enzyme dosage (3â¯FPU·gâ1) in the following enzymatic hydrolysis. DA-AWO pretreatment was effective due to its sufficient hydrolysis of hemicellulose in the first stage and remarkably removal of the lignin in the second stage, resulting in high sugar recovery with a low enzyme dosage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 271, January 2019, Pages 283-288
Journal: Bioresource Technology - Volume 271, January 2019, Pages 283-288
نویسندگان
Shengxin An, Wenzhi Li, Qiyu Liu, Ying Xia, Tingwei Zhang, Feng Huang, Qizhao Lin, Liang Chen,