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Combustion characteristics of high ash Indian thermal,heat affected coal and their blends

International Journal of coal Science & Technology 2021年第5期8卷 1078-1087页

作者： Subhajit Aich Barun Kumar Nandi Sumantra Bhattacharya Department of Fuel Minerals and Metallurgical Engineering Indian Institute of Technology(Indian School of Mines)Dhanbad 826004JharkhandIndia

Onsite mine fire generates large volumes of heat-affected coal in Jharia coalfields,*** utilization of such heat-affected coal in thermal utilities is not feasible as such coal does not have the desirable volatile matter required for *** the present work,experimental studies have been carried out to investigate the possible utilization of such heat-affected coal in thermal utilities by blending with other ***-affected coal(31%ash and 5300 kcal/kg GCV)collected from Jharia coalfield were blended with thermal coal(28%ash and 5650 kcal/kg GCV)in different ratios of 90:10,80:20,70:30 and 60:40 to identify the desirable blend ratio for burning of blended coal in thermal *** characteristics of all the coals were carried out using *** combustion parameters such as ignition temperature,peak temperature,burnout temperature,ignition index,burnout index,combustion performance index,rate and heat intensity index of the combustion process and activation energy were evaluated to analyse the combustion *** and theoretical analysis shows the blend ratio of 90:10 can be used in place of only thermal coal in utilities to reduce the fuel cost.

关键词： coal blends Heat affected coal Combustion indices TGA-DTG Burning profile Mass gain analysis

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THE COMBUSTION CHARACTERISTICS OF LIGNITE blends

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Journal of coal Science & Engineering(China) 2000年第1期6卷 57-62页

作者：程军周俊虎曹欣玉岑可法 Zhejiang University Hangzhou310027

The combustion characteristics of lignite blends were studied with a thermogravimetric analyzer (t g a.), at constant heating *** characteristic temperatures were determined from the burning *** was found that the characteristic times of combustion reaction moved forward, the ignition temperature dropped and the burnout efficiency slightly changed when blending *** characteristic parameters of blends could not be predicted as a linear function of the average values of the individual *** blending with less reactive coal, the ignition and burnout characteristics of lignite turned worse.

关键词： combustion coal blends thermogravimetric analyzer

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