Thermal Analysis of Vitamin C Affecting Low.temperature Oxidation of Coal  

作　　者：秦波涛 窦国兰 WANG Deming 

机构地区：[1]School of Safety Engineering,China University of Mining&Technology,Xuzhou 221116,China [2]Key Laboratory of Gas and Fire Control for Coal Mines,XuZhou 221116,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2016年第3期519-522,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(No.51134020);the Shenhua Group Corporation Limited(No.U1361213);the Priority Academic Program Development of Jiangsu Higher Education Institutions;the Natural Science Foundation of Jiangsu(No.BK20141132);the Fundamental Research Funds for the Central Universities(No.2014QNB01)

摘　　要：Simultaneous thermal analysis was used to study the influence of Vitamin C as possible chemical additive inhibiting coal oxidation process at low temperature. Some oxidation characteristics of Vitamin C affecting the coal oxidation were investigated at different heating rates. The TG-DSC data show that the impact of Vitamin C on coal oxidation process can be directly evaluated using ignition temperature and critical temperature. Comparison with the effect of water on coal oxidation shows that Vitamin C is more efficient than water. However, the blank experiment conducted with inert a-Al2O3 also suggests that Vitamin C can decompose at about 200 ℃, which limits the usage of Vitamin C on inhibiting coal oxidation.Simultaneous thermal analysis was used to study the influence of Vitamin C as possible chemical additive inhibiting coal oxidation process at low temperature. Some oxidation characteristics of Vitamin C affecting the coal oxidation were investigated at different heating rates. The TG-DSC data show that the impact of Vitamin C on coal oxidation process can be directly evaluated using ignition temperature and critical temperature. Comparison with the effect of water on coal oxidation shows that Vitamin C is more efficient than water. However, the blank experiment conducted with inert a-Al2O3 also suggests that Vitamin C can decompose at about 200 ℃, which limits the usage of Vitamin C on inhibiting coal oxidation.

关 键 词：thermal analysis vitamin C coal oxidation INHIBITOR 

分 类 号：TQ530[化学工程—煤化学工程]