کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7080621 | 1459994 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Catalytic hydrothermal upgradation of wheat husk
ترجمه فارسی عنوان
ارتقاء هیدروترمال کاتالیستی پوسته گندم
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کلمات کلیدی
پوسته گندم، زیست توده، مایع سازی هیدروترمال آب زیرکریتی، آب فشرده داغ
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Catalytic hydrothermal upgradation of wheat husk was performed at 280 °C for 15 min in the presence of alkaline catalysts (KOH and K2CO3). The effect of alkaline catalysts on the yield of bio-oil products and composition of bio-oils obtained were discussed. Total bio-oil yield (31%) comprising of bio-oil1 (ether fraction) and bio-oil2 (acetone fraction) was maximum with K2CO3 solution. Powder XRD (X-ray diffraction) analysis of wheat husk as well as bio-residue samples show that the peaks due to cellulose, hemicellulose and lignin become weak in bio-residue samples which suggest that these components have undergone hydrolytic cleavage/decomposition. The FTIR spectra of bio-oils indicate that the lignin in the wheat husk samples was decomposed to low molecular weight phenolic compounds. 1H Nuclear Magnetic Resonance (NMR) spectrum of bio-oil1 shows more than 50% of the protons resonate in the up field region from 0.5 ppm to 3.0 ppm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 149, December 2013, Pages 446-451
Journal: Bioresource Technology - Volume 149, December 2013, Pages 446-451
نویسندگان
Rawel Singh, Thallada Bhaskar, Sambha Dora, Bhavya Balagurumurthy,