Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue

Kai Li; Xiaoxun Ma; Ruiyu He; Zhenni Li

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Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue

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摘要

To reasonably utilize the coal direct liquefaction residue(DLR), contrasting research on the co-pyrolysis between different low-rank coals and DLR was investigated using a TGA coupled with an FT-IR spectrophotometer and a fixed-bed reactor. GC–MS, FTIR, and XRD were used to explore the reaction mechanisms of the various co-pyrolysis processes. Based on the TGA results, it was confirmed that the tetrahydrofuran insoluble fraction of DLR helped to catalyze the conversion reaction of lignite. Also, the addition of DLR improved the yield of tar in the fixed-bed, with altering the composition of the tar. Moreover, a kinetic analysis during the co-pyrolysis was conducted using a distributed activation energy model. The co-pyrolysis reactions showed an approximate double-Gaussian distribution.

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《中国化学工程学报：英文版》 |2019年第11期|2815-2824|共10页
作者
Kai Li; Xiaoxun Ma; Ruiyu He; Zhenni Li;
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作者单位

School of Chemical Engineering;

Northwest University;

Xi'an 710069;

China;

International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources;

Xi'an 710069;

China;

Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy;

Xi'an 710069;

China;

Shaanxi Research Center of Engineering Technology for Clean Coal Conversion;

Xi'an 710069;

China;

Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi;

Xi'an 710069;

China;

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原文格式 PDF
正文语种 chi
中图分类燃料化学工业;煤的热解与转化;
关键词
Low-rank; coal; Coal; direct; liquefaction; residue; Co-pyrolysis; Kinetics;

Co-pyrolysis characteristics and interaction route between low-rank coals and Shenhua coal direct liquefaction residue

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