SOME FEATURES OF THE PROCESS OF INTERACTION OF IRON WITH METHANE AT A TEMPERATURE OF 900°C AND A PRESSURE OF 100 MPA

L. Ya. Aranovich; Аранович Л. Я.; E. S. Persikov; Персиков Э. С.; P. G. Bukhtiyarov; Бухтияров П. Г.; O. Y. Shaposhnikova; Шапошникова О. Ю.; A. N. Nekrasov; Некрасов А. Н.

doi:10.31857/S2686739723600996

SOME FEATURES OF THE PROCESS OF INTERACTION OF IRON WITH METHANE AT A TEMPERATURE OF 900°C AND A PRESSURE OF 100 MPA

作者: Aranovich L.Y.¹^,2, Persikov E.S.¹, Bukhtiyarov P.G.¹, Shaposhnikova O.Y.¹, Nekrasov A.N.¹
隶属关系:
1. Institute of Experimental Mineralogy of the Russian Academy of Sciences
2. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
期: 卷 512, 编号 1 (2023)
页面: 60-65
栏目: GEOCHEMISTRY
##submission.dateSubmitted##: 30.01.2025
##submission.datePublished##: 01.09.2023
URL: https://vestnik.nvsu.ru/2686-7397/article/view/649830
DOI: https://doi.org/10.31857/S2686739723600996
EDN: https://elibrary.ru/IODSLJ
ID: 649830

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详细

Using the original high-gas pressure unit (IHPV), experiments were conducted for the first time on the interaction of iron with methane at a temperature of 900°C and a pressure of 100 MPa. Complex methods (microprobe, Raman spectroscopy, chromatography, mass balance calculations) are used for a thorough analysis of fluid compositions and metallic phases formed in experiments. For the first time, experimental and theoretical quantitative data on the composition of the fluid and the composition of the fluid components dissolved in the metal were obtained. Unlike the previously studied Fe₃C–H₂ system, in experiments, when Fe reacts with methane, there is an active interaction of carbon formed due to the pyrolysis of methane with iron up to the synthesis of Fe₃C carbide. The experiments have shown that increasing pressure inhibits significantly hydrogen yield during methane conversion on metallic iron. Carbon saturation of iron with the formation of Fe₃C is not complete within the entire volume of the metal during 24 h runs at 900°С. Employing molybdenum containers facilitates CH₄ decomposition.

关键词

iron, methane, pressure, high temperature, interaction

参考

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