燃料化学学报2016，Vol.44Issue(9)：1043-1050,8.
低温共熔物对煤灰熔融温度影响的研究
Effect of low temperature eutectics on coal ash fusion temperatures
摘要
Abstract
Coal ash fusion temperature is important for large-scale gasifier/boiler designers and operators. There has been a big error for fusion temperature calculated by chemical composition of coal ash because the ash is composed of minerals actually, which has a strong impact on fusion temperature. A new calculation method, based on chemical composition and low temperature eutectics of minerals being considered, is proposed, according to 59 typical coal samples from the central and western regions in China. The most predictive values are not far from preciseness with a mean error lower than 5%, when the calculation is employed to 108 coal samples. Meanwhile, a roughly sufficient judgment to identify the ash fusion temperature greater than 1 500℃ is suggested by formula, which is 0. 9≤SiO2/A12 O3≤1. 8 and SiO2+A12 O3≥78% with accuracy of 92. 2%among 167 coal samples.关键词
低温共熔/熔融温度/化学组成/矿物组成Key words
low temperature eutectic/ash fusion temperature/chemical composition/mineral composition分类
化学工程引用本文复制引用
程相龙,王永刚,张荣,毕继诚..低温共熔物对煤灰熔融温度影响的研究[J].燃料化学学报,2016,44(9):1043-1050,8.基金项目
The project was supported by the 12th Five-Year Plan of National Science and Technology Support (2012BAA04B02)“十二五”国家科技支撑计划重点项目(2012BAA04B02)资助 （2012BAA04B02）
