کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
55907 47065 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cellulosic conversion in ionic liquids (ILs): Effects of H2O/cellulose molar ratios, temperatures, times, and different ILs on the production of monosaccharides and 5-hydroxymethylfurfural (HMF)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Cellulosic conversion in ionic liquids (ILs): Effects of H2O/cellulose molar ratios, temperatures, times, and different ILs on the production of monosaccharides and 5-hydroxymethylfurfural (HMF)
چکیده انگلیسی

The effects of several critical factors including H2O/cellulose molar ratios, dissolution temperatures (Tdis), dissolution times (tdis), reaction temperatures (Trxn), reaction times (trxn), and types of ionic liquids (IL) were investigated for cellulosic conversion. We optimized the reaction conditions as: H2O/cellulose = 10/1, Tdis = 120 °C, tdis = 0.5 h, Trxn = 120 °C, trxn = 3 h for 1-ethyl-3-methylimidazolium chloride ([EMIM]Cl)-based system, and the maximum yield of 5-hydroxymethylfurfural (HMF) up to 21% could be achieved without adding extra catalysts. Another pyridinium-typed IL, [Epyr]Cl, was also used in the cellulosic conversion, and the results showed a high selectivity toward monosaccharides. The information obtained in this study will benefit many biofuel-related applications.

Figure optionsDownload high-quality image (107 K)Download as PowerPoint slideHighlights
► The optimal water/cellulose molar ratio is 10/1.
► The optimal dissolution temperature and time are 120 °C and 0.5 h, respectively.
► The optimal reaction temperature and time are 120 °C and 3 h, respectively.
► The maximum HMF and monosaccharides yield are 21% and 24.9%, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 174, Issue 1, 2 October 2011, Pages 65–69
نویسندگان
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