化工进展Issue(7)：1702-1706,5.DOI:10.3969/j.issn.1000-6613.2014.07.008
低阶煤低温热解半焦在模拟高炉喷吹条件下的燃烧性能
Experimental investigation of combustion behavior of low rank coal char under simulated blast furnace conditions
何选明 1付鹏睿 1张杜 1曾宪灿 1程晓晗 1易霜1
作者信息
- 1. 武汉科技大学化学工程与技术学院，湖北省煤转化与新型碳材料重点实验室，湖北 武汉430081
- 折叠
摘要
Abstract
Shenmu long-flame coal chars were prepared at carbonization temperature 400℃,450℃, 500℃,550℃ respectively using fixed bed pyrolysis apparatus under isolated condition. Reaction of pulverized coal injection(PCI)in a blast furnace was simulated using a drop tube furnace (DTF) to investigate the burnout behavior of low rank coal char and the influence of final pyrolysis temperature, particle size,combustion reaction temperature on combustion behavior. Char combustion behavior was better than anthracite selected in this test,and there was a negative relationship between char combustion behavior and fuel ratio. The higher the fuel ratio,the worse the combustion behavior. Decreasing final pyrolysis temperature and particle size,increasing combustion reaction temperature could improve char combustion behavior. When final pyrolysis temperature was 400℃,particle size was 100—200 mesh,combustion reaction temperature was 1100℃,burnout of coal char was 96%. Preparation and combustion conditions of coal char were similar to existing low temperature pyrolysis and blast furnace injection process,and performance of char met the requirements of blast furnace injection coal.关键词
煤半焦/管式沉降炉/高炉喷吹/燃烧性能Key words
coal char/drop tube furnace/blast furnace injection/combustion behavior分类
化学化工引用本文复制引用
何选明,付鹏睿,张杜,曾宪灿,程晓晗,易霜..低阶煤低温热解半焦在模拟高炉喷吹条件下的燃烧性能[J].化工进展,2014,(7):1702-1706,5.
