Pitch pyrolysis kinetics: isothermal heat treatment experiments and model

X. Py; E. Daguerre

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Pitch pyrolysis kinetics: isothermal heat treatment experiments and model

机译：沥青热解动力学：等温热处理实验和模型

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The present study was focussed on the modelling of the evolution under heat treatment of the so-called γ, β and α-resins fractions usually used for pitches composition characterization. The model was based on phenomenologic basic mechanisms such as gas--liquid, liquid--liquid mass transfers and chemical reactions with respect to the overall resins assimilated to basic equivalent chemical species. It has been confronted with success to experimental data investigated at three temperature levels (400, 430, 450deg.C) and eight soaking times (from 0 to l2 h) for two different materials: a petroleum and a coal tar pitch. The identified kinetic parameters were found to be in agreement with usual values encountered in literature for similar basic phenomena. This led to an accurate predictive tool intended to reactor design and optimization as well as pitches reactivity comparison.

机译：本研究的重点是通常用于沥青成分表征的所谓γ，β和α树脂馏分在热处理过程中的演化模型。该模型基于现象学的基本机理，例如相对于等同于基本化学种类的全部树脂的气-液，液-液传质和化学反应。在三种温度水平（400、430、450℃）和八种均热时间（从0至12h）下对两种不同材料（石油和煤焦油沥青）进行的实验数据研究取得了成功。发现所确定的动力学参数与文献中遇到的类似基本现象的通常值一致。这导致了用于反应堆设计和优化以及沥青反应性比较的准确的预测工具。

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来源
《Fuel》 |2000年第6期|p.591-598|共8页
作者
X. Py; E. Daguerre;
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作者单位

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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;
关键词
Pitches; Pyrolysis; Xinetics;

机译：音高;热解;动力学;

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8. Non-Isothermal Reaction Kinetics of Coal Pyrolysis. Part 3. The Reaction Pattern at Rapid Heating-Up Rates. [R] . Koch, A., Juentgen, H., Peters, W. 1969

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Pitch pyrolysis kinetics: isothermal heat treatment experiments and model

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