|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5779243||1413771||2017||4 صفحه PDF||ندارد||دانلود کنید|
Formation of hydrocarbons in the seawater - mineral substance - living matter system is modeled. Some systems of various living matter compositions and stoichiometry and also at several sets of T,P parameters are simulated. During diagenesis kerogens and hydrocarbons are formed. The equilibrium constant of the reaction between oily kerogen and oxidized one, methane and CO2 is evaluated: Î¦1C292H288O12(kerogen, H/C 0.99, O/C 0.041) â Î¦2C128H68O7(kerogen, H/C 0.53, O/C 0.055)+xÐ¡H4+yCO2+zH2O, where Î¦1 and Î¦2 moles of kerogens; x, y, z â stoichiometry coefficients. In thermodynamically closed system the aqueous natural hydrocarbons are stable up to 300Ð¾Ð¡ (at pressure above water saturated vapor) due to reductive environment formation (lg f H2 â 10-4 Ð±Ð°Ñ). Equilibrium mineral assemblages of the system include quartz, kaolinite, muscovite, ankerite, siderite, pyrite, (Ca,Mg)CO3, (Ca,Sr)CO3 and paragonite. High salinity Cl-HCO3-Na aqueous solution also contains CO2 of tens g/l and ammonium nitrogen.
Journal: Procedia Earth and Planetary Science - Volume 17, 2017, Pages 96-99open access