• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ International >Effects of High-Oxygen-Level Process Gas (40 O-2) on the Temperature and Strength Development of a Magnetite Pellet Bed during Pot Furnace Induration
【24h】

Effects of High-Oxygen-Level Process Gas (40 O-2) on the Temperature and Strength Development of a Magnetite Pellet Bed during Pot Furnace Induration

机译：Effects of High-Oxygen-Level Process Gas (40 O-2) on the Temperature and Strength Development of a Magnetite Pellet Bed during Pot Furnace Induration

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

As Sweden transitions to hydrogen-based steel production to enable fossil-free steelmaking, excess oxygen is likely to be generated through hydrogen production via water electrolysis based on green electricity. Further, during iron-ore pellet production, magnetite oxidises to hematite, releasing considerable heat. This excess oxygen and inherent heat can be used to promote exothermic oxidation, reducing the external fuel requirement, decreasing greenhouse gas emissions, and conforming to the Paris climate agreement. In this study, the effects of a high-oxygen-content (40% O-2) inflow gas on pellet bed oxidation during induration were investigated, focusing on the resulting temperature profiles in the bed and the strength development of the produced pellets. An interrupted pot furnace experimental methodology was employed on the bed scale, with an approximate scale of 100 kg pellets per bed. The results indicate that the use of 40% O-2 gas helps rapidly enhance the pellet properties and yields a more uniform pellet bed in terms of oxidation degree compared to the use of 13% 02 gas. In addition, improved cold compression strength (CCS) can be achieved when using 40% O-2 inflow-gas. At temperatures above 1 000 degrees C, the oxidation degree and CCS are primarily enhanced by the high oxygen level of the inflow gas; this behaviour cannot be compensated for by increasing the temperature and residence time at a lower oxygen level. The positive effects on the bed-scale oxidation degree and strength are promising and may enable faster production rates in the future.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号