Study on Characteristics and Kinetics of Catalytic Degradation from Estonia Kerogen

The effects of catalysts on hydrocarbon generation from kerogen have been investigated by using simulation experiment and chemical catalysis mechanism. The simulated samples were selected from Estonia area. The catalytic action of different catalysts was studied on the product composition, hydrocarbon yield, kinetics of hydrocarbon generation. In the presence of carbonatite, the yield of generated hydrocarbon S 2 has been decreased because of the adsorption of carbonatite on pyrolysates. The insoluble salt, CaSO 4, as a catalyst, has enhanced kerogen degradation to increase the yield of hydrocarbon(S 2).The soluble salts including CaCl 2,Na 2SO 4 and NaHCO 3 have no effect on the hydrocarbon generation from kerogen. As the kinetics is concerned, carbonatite has a negative catalytic effect and decreases the reaction rate , but CaSO 4 has a positive effect and gives rise to the reaction rate. In addition, it is also found that the kinetic parameters, apparent activation energy and frequency factor , have a relationship with each other, which can be reasonably described by an exponential function.