Computer Simulation of the Transformation of Natural Living Matter into Kerogenстатья
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Дата последнего поиска статьи во внешних источниках: 29 апреля 2021 г.
Аннотация:Thermodynamic simulation of the system living matter (algae, zooplankton, or green plants) + mineral matter (25% carbonates + 75% clay minerals) + standard seawater at temperatures and pressure corresponding to diagenesis indicates that kerogen can be synthesized, together with hydrocarbons and carbon dioxide, in the reaction mix. The removal of CO2(g) and N-2(g) from the system is favorable for the reaction Delta 1C292H288O12 (s; H/C = 0.99, O/C = 0.041) -> Delta 2C128H68O7 (s; H/C = 0.53, O/C = 0.055) + xCH(4)(aq) + yCO(2)(aq) + zH(2)O, whose constant and stoichiometric coefficients were calculated based on the simulation results. It is demonstrated that a pressure increase is favorable, while a temperature increase is not, for the procedure of this reaction at P-T parameters of diagenesis: log K = -567 (20 degrees C, 35 bar), 1170 (20 degrees C, 200 bar), -1530 (20 degrees C, 60 bar), and + 1030 (20 degrees C, 600 bar).