2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 480 pages |
| ISBN: | 978-1-987820-46-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Experimental investigations into metallurgical properties evolution of Xinjiang lump coal under COREX gasifier condition
runsheng xu1; Jianliang Zhang2; Zhengjian Liu2; Guangwei Wang2; Kexin Jiao2; Yun Zhou2;1, Beijing, China; 2UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China;
Type of Paper: Regular
Id Paper: 38
Topic: 3
Abstract:
The COREX process is the new ironmaking technology which has realized industrialization with lump coal instead of coke to get high-quality hot metal, and reduced the dependence on coking coal resources. So lump coal is the major fuel for COREX process, and the performance of COREX depends on its metallurgical properties. The descending process of Xinjiang lump coal was simulated and the evolution of metallurgical properties during the process was investigated by experiment. The results showed that the thermal stability was getting worse at the temperature of 300-500¡æ. The mechanical strength of lump coal first decreased then became better with the temperature increase, and the most serious chalking interval was under 600-800¡æ condition. Moreover, the reactivity with CO2 decreased with its temperature increase. The metallurgical properties of Xiangjiang lump coal during the descending process depend on its pyrolysis reaction and microstructures evolution.
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