Mineral matter hydropyrolysis of Tarfaya oil shale and influence of sedimentation edge

. In hydrotreating the reactivity of the mineral matter of the oil shale from the five layers of the Tarfaya deposit and the M layer of the Timahdit deposit, both located in Morocco, is different. This reactivity is a function of the climates of the geological eras: Z0 (Tertiary era: cold climate), Z1 (Maestrichtian: hot climate), Z2 (Senonian: cold climate), Z3 (Turonian: warm climate) and Z4 (Cenomanian: warm climate). This explains why the Z3 and Z4 layers are the most reactive, also due to the location of the low peak temperatures as established by derivative thermogravimetry (DTG) for these two layers. There was also a disproportion between the DTG peak area values and the reactivity of the mineral material. The composition of dolomite CaMg(CO 3 ) 2 in the Z1 layer is responsible for the low reactivity observed for this layer.