Combustion and Emission Characteristics of Coal Logs with Different Binders for Transportation in a Hydraulic Pipeline

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• 作者：Wen J. Li ; Sheng Y. Lu ; Ru P. Wang ; Cheng Q. Lin ; Xiao D. Li ; Jian H. Yan
• 刊名：Energy & Fuels
• 出版年：2016
• 出版时间：February 18, 2016
• 年：2016
• 卷：30
• 期：2
• 页码：1335-1340
• 全文大小：376K
• ISSN：1520-5029

文摘

Cationic emulsified asphalt (CEA) and poly(vinyl alcohol) (PVA) polymer binding agents may affect the combustion characteristics and pollutant emissions of coal logs shaped for transportation in hydraulic pipelines. Therefore, these characteristics were investigated using thermal analysis as well as a lab-scale fixed-bed combustor, together with those of raw coals. Three raw coals, anthracite, bitumite, and lignite, were selected to produce coal logs. The results of thermal analysis were compared to those of raw coals. Binders made the three coals more prone to be ignited. Binders improved the combustion of coal logs made of anthracite yet worsened the combustion performance of bitumite coal logs. CEA binder ameliorated the combustion performance of coal logs made of lignite. PVA binder slightly worsened the combustion performance of coal logs made of lignite. Different binders had dissimilar effects on the pollutant emissions when burning coal logs made of different coals.