Kinetics of Individual C1–C5 Hydrocarbons Formation of Domanik Shale in Hydrothermal Experiments

IF 0.7 4区 地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS Geochemistry International Pub Date : 2025-01-27 DOI:10.1134/S0016702924700769
D. A. Bushnev, N. S. Burdelnaya, A. A. Ilchenko, Ya. D. Sennikova, D. V. Kuzmin
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Abstract

Twelve hydrothermal autoclave experiments were conducted with Domanik oil shale from the Ukhta region (Chut River) at temperatures of 250–375°C and run duration of 24 h (6 experiments), 72 h (5 experiments), and 48 h (1 experiment). The composition of hydrocarbon gases C1–C5 was studied for each experiment and quantitative data on their yields were obtained. Based on these data, the distributions of generation potential of individual gaseous hydrocarbons by activation energy were established under hydrothermal experimental conditions. The character of the kinetic spectra of individual alkanes C2–C5 is virtually identical; their main narrow maximum corresponds to Ea 55 kcal/mol with an Arrhenius factor of 1 × 1014 s–1. The distribution of the methane generation potential by activation energies is distinguished by the fact that a significant part of its generation potential falls within the region of activation energies of 60–70 kcal/mol and by the uncertainty of the distribution character in this region.

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来源期刊
Geochemistry International
Geochemistry International 地学-地球化学与地球物理
CiteScore
1.60
自引率
12.50%
发文量
89
审稿时长
1 months
期刊介绍: Geochemistry International is a peer reviewed journal that publishes articles on cosmochemistry; geochemistry of magmatic, metamorphic, hydrothermal, and sedimentary processes; isotope geochemistry; organic geochemistry; applied geochemistry; and chemistry of the environment. Geochemistry International provides readers with a unique opportunity to refine their understanding of the geology of the vast territory of the Eurasian continent. The journal welcomes manuscripts from all countries in the English or Russian language.
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