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《Acta Sedimentologica Sinica》 2004-03
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Study on Characteristics and Kinetics of Catalytic Degradation from Estonia Kerogen

ZHAO Gui-yu 1 LIU Luo-fu 1 LI Shu-yuan 2 1(Key Laboratory for Hydrocarbon Accumulation Mechanism, Ministry of Education;Basin and Reservoir Research Center, University of Petroleum, Beijing 102249 )2(School of Chemical Engineering, University of Petroleum, Beijing 102249)  
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.
【Fund】: 国家重点基础研究规划项目 (973) (编号 :G1 9990 4 330 7)资助
【CateGory Index】: P618.13
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