In situ change of fractal structure in coal with coking capability during high-temperature carbonisation

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Philosophical Magazine Letters Pub Date : 2021-10-29 DOI:10.1080/09500839.2021.1995634

Yuexiang Wang, Zhihong Li, Jiao Kong, L. Chang, Yixin Zhao, Lili Dong, Baoliang Lv

引用次数: 2

Abstract

ABSTRACT Coal is an important energy and chemical raw material. Carbonization is an effective way for comprehensive utilization of coal, especially for coal with coking capability. The complex pore structure of raw coal and its carbonization solid products can be well characterized by a fractal description. Owing to a lack of in situ studies, the change in the fractal structure of coal with coking capability during carbonization remains unclear. Here we report briefly on an in situ study on high-temperature (1000°C) carbonization of four kinds of Chinese typical bituminous coal with coking capability, namely gas coal, fat coal, coking coal and lean coal, by synchrotron radiation small-angle X-ray scattering (SAXS). The change of fractal structure of the coal is analyzed in terms of corresponding mechanisms.

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具有炼焦能力的煤在高温炭化过程中分形结构的原位变化

摘要煤是一种重要的能源和化工原料。炭化是煤炭综合利用的有效途径，特别是对具有炼焦能力的煤炭。分形描述可以很好地表征原煤及其炭化固体产物的复杂孔隙结构。由于缺乏现场研究，具有炼焦能力的煤在炭化过程中分形结构的变化尚不清楚。本文简要报道了用同步辐射小角度X射线散射（SAXS）对四种具有炼焦性能的中国典型烟煤，即气煤、肥煤、焦煤和贫煤进行高温（1000°C）炭化的原位研究。从相应的机理分析了煤的分形结构的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Philosophical Magazine Letters 物理-物理：凝聚态物理

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

2.7 months

期刊介绍： Philosophical Magazine Letters is the rapid communications part of the highly respected Philosophical Magazine, which was first published in 1798. Its Editors consider for publication short and timely contributions in the field of condensed matter describing original results, theories and concepts relating to the structure and properties of crystalline materials, ceramics, polymers, glasses, amorphous films, composites and soft matter. Articles emphasizing experimental, theoretical and modelling studies on solids, especially those that interpret behaviour on a microscopic, atomic or electronic scale, are particularly appropriate. Manuscripts are considered on the strict condition that they have been submitted only to Philosophical Magazine Letters , that they have not been published already, and that they are not under consideration for publication elsewhere.