کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7070133 | 1459923 | 2016 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Depolymerization of microcrystalline cellulose to value added chemicals using sulfate ion promoted zirconia catalyst
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
The transformation of lignocellulosic biomass to value added chemicals in a synergetic effect of sulfated zirconia (SZ) catalyst and ionic liquid was found to effectively depolymerize microcrystalline cellulose (MCC) to sugars and dehydrate sugars to 5-hydroxylmethylfurfural (5-HMF) and levulinic acid (LA). SZ was catalyst synthesized by wet impregnation method with predetermined concentration of sulphuric acid and then characterized using techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), BET-surface area analyzer, thermo-gravimetric analysis (TGA) and temperature programmed desorption of ammonia (Ammonia-TPD). SZ catalyst was effective in depolymerizing MCC yielding a maximum of total reducing sugar (TRS) of 57% (38% glucose and 14% fructose), 9.5% LA and 5.1 of 5-HMF at a temperature of 180 °C and 3 h of depolymerization time. In addition, SZ was tested for dehydration of glucose and fructose and a yield of 26% and 62% of 5-HMF were obtained, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 220, November 2016, Pages 394-400
Journal: Bioresource Technology - Volume 220, November 2016, Pages 394-400
نویسندگان
Samuel Kassaye, Chetan Pagar, Kamal K. Pant, Sapna Jain, Rajat Gupta,