化学工程2018，Vol.46Issue(4)：57-61,67,6.DOI:10.3969/j.issn.1005-9954.2018.04.011
配煤比例及温度对气化反应特性影响
Effect of coal blending ratio and temperature on gasification characteristics
摘要
Abstract
In order to reduce the fuel gas production cost of a coal gasification demonstration project,blending low-price local coal is a feasible method.However Hongshagang coal is a low-active and low-rank coal,which is not a suitable coal for gasification.Therefore,it is necessary to select high active coal as coal blending and investigate the effect of blending ratio on gasification characteristics,so as to provide the theoretical basis for selecting appropriate ratio for the project.In this paper,the gasification characteristics were investigated by thermogravimetric analysis and the isoconversional method were employed to calculate the apparent activation energy.Results show that the carbon conversion rate,gasification rate and the reactivity index R decrease with increasing the blending ratio,while increase with increasing gasification temperature.When the coal blending ratio is 10％ or 20％,the reactivity index increases minimum at 1 000 ℃,when the ratio is 40％ or 60％,the reactivity index increases maximum at 1 000 ℃,and when the ratio is 30％ or 50％,the reactivity index increases maximum at 950 ℃.The apparent activation energy is not linear with the blending ratio.The interaction between Guanghui coal and Hongshagang coal is related to the coal blending ratio and the carbon conversion rate.关键词
配煤/热重分析/气化活性/表观活化能Key words
coal blending/thermogravimetric analysis/gasification activity/apparent activation energy分类
化学化工引用本文复制引用
韩广怡,朱治平,张海霞..配煤比例及温度对气化反应特性影响[J].化学工程,2018,46(4):57-61,67,6.基金项目
国家重点研发计划资助项目(2017YFB0602302) （2017YFB0602302）
