Kinetics of Thermal and Catalytic Coal Liquefaction with Plastic-Derived Liquids as Solvent
Kinetics of Thermal and Catalytic Coal Liquefaction with Plastic-Derived Liquids as Solvent
复制标题
DOI：
10.1021/ie960568
复制
发表时间：
1997-05
影响因子：
4.2
通讯作者：
W. Ding;Jingcui Liang;L. L. Anderson-L.
中科院分区：
文献类型：
--
作者：
W. Ding;Jingcui Liang;L. L. Anderson-L.
本文研究了德克斯-6煤以塑料衍生液（PDL）为溶剂的热液化和催化（煤浸渍铁）液化动力学。实验工作在27-cm 3水平摇动微反应器中在360 - 400 °C的温度下进行，等温反应时间为0至180 min。反应压力约为2000 psig H2，溶剂与煤的重量比为2：1。实验数据进行了相关的动力学模型，假设反应途径：煤的预沥青质，煤的沥青质，煤的天然气+油，预沥青质的沥青质，预沥青质的天然气+油，和沥青质的天然气+油。结果表明，该反应模型拟合实验数据合理，以及在所使用的条件下，和六个速率常数表现出Arrhenius型的温度依赖性。一些反应也在更高的温度（420 °C）下进行，以在反应条件下验证模型，而不是用于获得动力学的条件。
Results of a kinetic study of thermal and catalytic (Fe impregnated on coal) liquefaction of DECS-6 coal with plastic-derived liquids (PDL) as solvent have been obtained. The experimental work was conducted in 27-cm3 horizontally shaken microreactors at temperatures of 360−400 °C with isothermal reaction times ranging from 0 to 180 min. The reaction pressure was about 2000 psig H2, and the solvent-to-coal weight ratio was 2:1. Experimental data were correlated by a kinetic model which assumed the reaction pathways: coal to preasphaltenes, coal to asphaltenes, coal to gas + oil, preasphaltenes to asphaltenes, preasphaltenes to gas + oil, and asphaltenes to gas + oil. It was shown that this reaction model fit experimental data reasonably well at the conditions used, and the six rate constants exhibited Arrhenius-type temperature dependence. Some reactions were also carried out at a higher temperature (420 °C) to validate the model at reaction conditions other than conditions used for obtaining the kinetic ...