燃料与化工 ›› 2021, Vol. 52 ›› Issue (3): 55-57.

• 环境保护与节能减排 • 上一篇    下一篇

焦炉废气回配技术仿真计算与试验研究

康婷  王进先  郝传松   

  1. 中冶焦耐(大连)工程技术有限公司, 大连116085
  • 出版日期:2021-05-23 发布日期:2021-07-08

Computer simulation and pilot tests for waste gas recycling technology

Kang Ting  Wang Jinxian  Hao Chuansong   

  1. ACRE Coking & Refractory Engineering Consulting Corporation (Dalian),MCC,Dalian 116085,China
  • Online:2021-05-23 Published:2021-07-08

摘要:

通过数值模拟计算和现场工业试验相结合的方法,研究了废气回配技术对焦炉燃烧室燃烧过程的影响机理,并对比了不同废气回配量下立火道内NO生成情况的变化。废气回配技术可降低助燃气体中O2的浓度,降低高温区内NO的绝对生成量。当废气回配量达到40%时,能使废气中NO含量降低70%左右。

关键词: 废气回配, 模拟计算, 工业试验, 氮氧化物

Abstract:

Through computer simulation plus pilot tests,study is conducted in this paper for the mechanism of waste gas recycling technology influencing combustion process in the combustion chamber.Comparison is also made for the changes of NO produced in vertical flues under different amounts of waste gas to be added.This technology could help reduce the O2 content in the combustion air and minimize the NO formation at high-temperature position in the flues,i.e.when the amount of waste gas to be mixed reaches up to 40%,the NO in the waste gas could be cut by about 70%.

Key words: Waste gas recycling technology, Simulation, Pilot test, Nitrogen oxide (NOx)

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