کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7606609 1492964 2015 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic effects of magnesium on the characteristics of fast pyrolysis products - Bio-oil, bio-char, and non-condensed pyrolytic gas fractions
ترجمه فارسی عنوان
اثرات کاتالیزوری منیزیم بر روی ویژگی های محصولات سریع تولید پیرولیز - فراورده های گاز بیرونی، زیستی و غلظت های مختلف فاضلاب
کلمات کلیدی
پیرولیز سریع روغن زیتون، منیزیم، دوباره سازی توزیع غیر معدنی، هیدروکربن های آروماتیک،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Fast pyrolysis of yellow poplar impregnated with different concentrations of MgCl2 was carried out at 450, 500, and 550 °C to investigate the effects of magnesium on the characteristics of the pyrolytic products. Analysis of the physicochemical properties of bio-oil, bio-char, and non-condensed pyrolytic compounds was carried out accordingly. The results indicate that the yield of char as well as some physicochemical properties of the bio-oil was influenced by the magnesium concentration. The water content increased due to a dehydration reaction induced by magnesium. Additionally, the viscosity significantly increased from 45 cSt to 216 cSt as the magnesium content increased. Magnesium promoted a repolymerization reaction leading to increases of the average molecular weight and solid content of the bio-oil from 950 Da to 1670 Da and 0.37 wt% to 0.73 wt%, respectively. Also, the amounts of levoglucosan and other small molecules detected by gas chromatography-mass spectroscopy analysis decreased as large fractions such as oligomers or char fines were formed. Meanwhile, the yield and elemental composition of the bio-oil barely changed. Following the pyrolysis, most of the inorganic metals remained in the bio-char. Furthermore, the various forms of aromatic hydrocarbons obtained from the non-condensed pyrolytic gas fractions were identified and quantified in this study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 113, May 2015, Pages 27-34
نویسندگان
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