Study on the structure and reactivity of COREX coal

被引：0
作者：
Xin Cui
Xinxin Zhang
Mu Yang
Yanhui Feng
Hongyi Gao
Wenbo Luo
机构：
[1] University of Science and Technology Beijing,School of Mechanical Engineering
[2] University of Science and Technology Beijing,School of Materials Science and Engineering
来源：
Journal of Thermal Analysis and Calorimetry | 2013年 / 113卷
关键词：
COREX; Coal analysis; Organic oxygen functional groups; FT-IR; TG–DSC-MS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
COREX is the primary process in the current smelting reduction method. The process has strict coal quality standards. Combustion processes of coal used in the COREX operating system were analyzed using a synchronous thermogravimetric analyzer combined with a mass spectrometer. The microcosmic structure and macerals were observed by an electronic scanning microscope. The qualitative and quantitative determinations of oxygen functional groups, such as phenolic hydroxyl, carboxyl, carbonyl, and methoxy groups were detected by the Fourier Transform Infrared spectrometer (FT-IR) and through chemical analysis methods. In addition, the evolution of the chemical structure and transformation mechanism of organic oxygen functional groups during COREX coal combustion have been thoroughly investigated. This study proposes a new coal-requirement index system and coal blending method, which will increase the expansion of coal selection and decrease the overall usage of coal during COREX.
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页码：693 / 701
页数：8
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