کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6593743 1423546 2018 15 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and modeling studies of small typical methyl esters pyrolysis: Methyl butanoate and methyl crotonate
ترجمه فارسی عنوان
مطالعات تجربی و مدلسازی پیرولیز متیل استریل معمولی: متیلوبتوآنات و متیل ترکونات
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کلمات کلیدی
متیلوبوتانات، متیل ترکونات، پیرولیز، مدل جنبشی، بیودیزل،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
In order to examine in detail the effect of C  C bond on the combustion chemistry of biodiesel fuels, two C4 fatty acid methyl esters (FAMEs) were investigated, namely methyl butanoate (MB) and methyl crotonate (MC). Pyrolysis experiments of these two FAMEs at 30, 150 and 780 Torr were conducted in a flow reactor over the temperature range of 773-1323 K, using gas chromatography-mass spectrometry. A number of pyrolysis species including C1 to C4 hydrocarbons, oxygenated products, esters and aromatics were observed and identified. A comprehensive kinetic model for MB and MC combustion was developed, and applied to validate against the new experimental data. In this work, peak mole fraction of benzene, as well as other unsaturated hydrocarbons in MC pyrolysis, was found to be in slightly higher amounts in comparison with that of MB. Kinetic modeling analysis revealed that the dominant formation pathway of benzene was the self-combination reaction of propargyl radical. Furthermore, the model was also validated against the previous experimental data on MB and MC combustion, including oxidation in jet stirred reactor, pyrolysis in shock tube and laminar premixed flame. This study suggests that the effect of C  C double bond in FAMEs might give rise to a growing tendency of initial PAH and soot precursors in the whole thermal decomposition process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 191, May 2018, Pages 160-174
نویسندگان
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