东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (5): 683-686.DOI: -

• 论著 • 上一篇    下一篇

熔融还原煤气改质的数值模拟

高攀;李强;邹宗树;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50774019)

Numerical simulation of gas reforming during smelting reduction

Gao, Pan (1); Li, Qiang (1); Zou, Zong-Shu (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Gao, P.
  • About author:-
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摘要： 考虑到两步法熔融还原中煤气的显热没有得到充分的利用,对煤气改质进行数值模拟研究.研究结果表明,相同的气体温度和气体流量下,碳消耗量随着填充床的高度增加(或碳基粒度的减少)而增加,水蒸气消耗量随着填充床高度的增加(或碳基粒度的减少)而减少;COREX终还原炉发生煤气改质后氧化度由0.10降至0.065,HIsmelt熔融还原炉炉顶煤气氧化度由0.625降至0.223,煤气的显热得到充分利用.

关键词: 熔融还原, 煤气改质, 碳基填充床, 数值模拟

Abstract: Given the incomplete utilization of enthalpy heat in a two-step smelting reduction process, gas reforming was studied by using numerical simulation. Under fixed gas temperature and flux, carbon consumption increased with increasing of carbon-based packed bed height and decreasing carbon particle size, while water vapor consumption decreased with carbon-based packed bed height and decreasing carbon particle size; extent of oxidation of gas in the COREX decreased from 0.10 to 0.065, while oxidation of gas in the HIsmelt decreased from 0.625 to 0.223, and the heat was fully utilized.

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