Thermal and kinetic analyses of pure and oxidized bitumens

Mohammed Benbouzid; Said Hafsi

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Thermal and kinetic analyses of pure and oxidized bitumens

机译：纯沥青和氧化沥青的热和动力学分析

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The thermal behaviour of pure and oxidized bitumens was studied by both DSC from -60 to +80 ℃ and TGA at different heating rates in flowing nitrogen from 100 to 600 ℃. The determined crystallised fractions FC of pure and oxidized bitumens were successively 5.19% and 3.90% and the determined glass transitions T_g of pure and oxidized bitumens were successively -41.43 ℃ and -28.36 ℃. The kinetics parameters (n, k, E_a, A) were calculated from the experimental results using a differential method. The TGA/DTG data showed that the thermal degradation of bitumen is a one stage process for pure bitumen and a two stage process for oxidized bitumen.

机译：DSC在-60至+80℃的DSC和TGA在100至600℃的氮气流中在不同加热速率下的热行为进行了研究。所确定的纯沥青和氧化沥青的结晶级分FC依次为5.19％和3.90％，所确定的纯沥青和氧化沥青的玻璃化转变温度T_g依次为-41.43℃和-28.36℃。使用微分法从实验结果计算出动力学参数（n，k，E_a，A）。 TGA / DTG数据表明，沥青的热降解是纯沥青的一阶段过程，而氧化沥青是两阶段过程。

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《Fuel》 |2008年第9期|p.1585-1590|共6页
作者
Mohammed Benbouzid; Said Hafsi;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类燃料化学工业（总论）;热力工程、热机;
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Thermal and kinetic analyses of pure and oxidized bitumens

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