高挥发分不黏煤的预热改质与成焦行为研究

燃料与化工 ›› 2010, Vol. 41 ›› Issue (2): 10-.

高挥发分不黏煤的预热改质与成焦行为研究

郑明东，李正秋，单海燕

安徽工业大学，马鞍山 243002

出版日期:2010-03-20

Study on preheating of high volatile non-caking coal and its coking behavior

Zheng Mingdong，Li Zhengqiu，Shan Haiyan

Anhui University of Technology, Ma’anshan 243002, China

Online:2010-03-20

摘要/Abstract

摘要：

在自行设计的热处理装置中，采用不同的气氛、温度、时间对高挥发分不黏煤进行低温预热处理。研究了热处理条件对含氧官能团、煤分子结构、镜质组随机反射率以及高温热解和黏结倾向的影响。结果表明，不黏煤热处理后干燥无灰基挥发分脱除至21％～25％；煤样的含氧官能团中羧基脱除率最高可达90%以上；处理样的H/C变化不大，O/C降低50%左右。实验验证了预处理煤样替代配煤组分的可能性。

Abstract:

The high volatile non-caking coal was preheated at different atmosphere, different temperature and different time in the self-designed heat treatment device. The influence of heat treatment condition on oxygen containing functional group, coal molecular structure, vitrinite random reflectance as well as pyrolysis and caking tendency were studied. The result showed that the volatile matter of non-caking coal after heat treatment was removed by 21%~25%; the hydroxyl removal rate in oxygen containing functional group of coal sample can be up to 90% or more; the H/C change of treated sample was not big, O/C is lowered by 50%. The experiment showed the possibility that the coal blend components can be replaced by the preheated coal sample.

中图分类号:

TQ520.62

郑明东李正秋单海燕. 高挥发分不黏煤的预热改质与成焦行为研究[J]. 燃料与化工, 2010, 41(2): 10-.