|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||Microwave-intensified Reduction of Biochar-containing Briquettes
||Zhiwei Peng, Xiaolong Lin, Tiancheng Nie, Zhizhong Li, Yuanbo Zhang, Guanghui Li, Tao Jiang
|On-Site Speaker (Planned)
The coal-based direct reduction process has gradually become the focus of research concerning direct reduced iron production due to its advantages, including high reduction rate, stable chemical composition, and good metallurgical properties. Based on coal-based reduction theory and briquetting technique, this paper reports the use of microwave energy for intensifying the reduction of carbon-containing briquettes mainly consisting of magnetite concentrate and biochar. The heating behaviors of the raw materials show that under the conditions of microwave power of 1250 W, N2 flow rate of 4 L min-1 and briquetting pressure of 400 N, the briquettes present the highest heating rate. The average heating rate reaches 35.16 oC min-1. When the briquettes are irradiated by microwaves at 1050 oC for 45 min, the metallization degree of the reduced briquettes reaches 93.58%.
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