【摘要】 将两份铝甑油收率为8.8%的茂名油页岩分别进行处理。一份采用盐酸及氢氟酸处理除去矿物质,另一采用过氧化氢处理除去有机质。然后分别于热重装置上以线性升温速率为6.8K/min 考察其热分解过程。在论述有机质与矿物质热分解过程的动力学特征的同时,发现有机质的热分解过程基本上体现了油页岩热解的动力学特征。其差别在于有机质的初始分解温度较油页岩提前了98℃,并且,在峰值附近热解产物的挥发速率均高于油页岩的挥发速率。动力学处理热重数据表明,有机质与矿物质的热分解过程均系一级反应。但是,在热解过程的不同温度区间,具有不同的表观活化能E 及指前因子A。通过对所获动力学参数的分析比较,可以认为矿物质对于热解初期油母大分子的解聚过程影响较为显著,而对随后生油过程中烃类分子的裂解反应影响较小。最后探讨了茂名有机质的热分解机理。更多还原

【Abstract】 The pyrolysis studies on the organic matters（OM）are effected by treating Maoming oil shale with HCl and HF to remove the mineral mat-ters（MM）,and on inorganic matters by treating the sample with H₂O₂to remove the OM by using thermogravimetric analyzer with a heatingrate 6.8K/min.It has been found that the kinetics of pyrolysis of Mao-ming OM shows similar trend with oil shale.Their differences are that theinitial pyrolysis temperature of OM is lower than that of oil shale byabout 98℃,and the weight-loss rate of pyrolysis of OM in the neigh-bourhood of its maximum value is higher than that of oil shale.Thekinetic treatments of the thermogravimetric data show that the pyrolysisof OM and MM of Maoming oil shale are both of the first order reactionas anticipated but with different apparent activation energies E and pre-exponential factors A in different temperature regions of pyrolysis.Bycomparing the different sets of kinetic parameters,it is possible that theeffect of MM on depolymerization of kerogen macromolecules during theinitial period of pyrolysis is more significant than that on the crackingof OM during the subsequent period.The possible pyrolysis mechanism ofOM has been discussed.更多还原