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《Coal Technology》 2018-01
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Study on Pyrolysis Mechanism of 2~(-2) Coal in Bulianta Coal Mine Based on TG/DSC-FTIR-MS/GC

FEI Jin-biao;WEN Hu;ZHANG Duo;College of Safety Science and Engineering,Xi′an University of Science and Technology;Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education,Xi′an University of Science and Technology;  
In order to study the molecular structure the coal of Bulianta coal mine.Analysis of oxygenic pyrolysis of coal specimen at No.22305 workface by TG/DSC-FTIR-MS/GC quadruple instrument.The pyrolysis characteristics of coal samples under nitrogen inert gas atmosphere were studied.The experimental results show that most of the pyrolysis reaction takes place between 200 ℃~700 ℃,and the coal sample is about 89% less in this section.The gas produced by the coal pyrolysis contains CO,CO2,H_2O,CH_4,C_2H_4 and so on.In the 700 ℃ ~1 450 ℃ between the pyrolysis gas generation rate is very small,weight loss of about 2.6%,this section is mainly semi-coke and carbonate minerals decomposition of gas.The types,time and mechanism of pyrolysis gas were analyzed,and the chemical reaction parameters of coal pyrolysis were obtained.
【CateGory Index】: TQ530.2
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