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标题：Assessment of the Effect of Oxygen and Carbon Dioxide Concentrations on Gas Evolution During Heat Treatment of Thermoanthracite Carbon Material
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作者：Olena Ivanenko ; Yevgen Panov ; Nikolai Gomelia 等
期刊名称：Inżynieria Ekologiczna
印刷版ISSN：2081-139X
电子版ISSN：2392-0629
出版年度：2020
卷号：21
期号：2
页码：139-149
DOI：10.12911/22998993/116326
出版社：Polish Society of Ecological Engineering (PTIE)
摘要：The processes of the interaction of carbon material (thermoanthracite pouring) with a gas-air mixture in a heat chamber are studied while heating to 800-850 °C.The influence of temperature, oxygen and carbon dioxide concentration on the formation efficiency of carbon monoxide, carbon dioxide, hydrogen and methane is determined.A pilot plant is created, which provided heating of the carbon material at the indicated temperatures and regulating the supply of air and carbon dioxide. It is found that a noticeable oxidation of the carbon material in the heat chamber in the presence of oxygen or carbon dioxide occurs at temperatures above 500 °C.Significant concentrations of carbon monoxide are formed at temperatures of 600-800 °C.It is shown that when using gas mixtures with an oxygen content of 7-21% minimum concentrations of carbon monoxide are formed at an oxygen content of 14%. At temperatures above 500 °C, the formation of hydrogen and methane in gas flows is noted.The methane yield increases with decreasing oxygen content.
关键词：carbon monoxide; flue gases; thermoanthracite pouring; Oxidation; pyrolysis; graphitization