Schistes bitumineux de timahdit(maroc):composition et proprietes physicochimiques

摘要

Timahdit (Morocco) oil shales:composition and physicochemical properties.The oil shales of Timalhdit (Morocco) constitute an important resource in energy.Indeed,the total organic matter is mainly constituted by kerogen.The elementary analysis gives atomic ratios H/C and O/C that are characteristic of a type II kerogen,poorly evolved,constituent of a good mother-rock.Thedifferent constituents separated from extractible organic matter by column or thin layer chromatography have been characterized.The analysis of saturated and aromatic hydrocarbons by gas chromatography has proved that the organic matte rof the shales of Timahdit is immature,resulting essentially from a phytoplanctonic biomass(marine orgin) with a smallcontinental influence.These results have been confirmed by the spectroscopic study of vanadyl and nickel petroporphyrins (DPEP and Etio) isolated from theorganic matte rof the Timahdit shales.