【摘要】 研究了孤岛渣油在分散型磷钼酸铵催化剂存在下加氢裂化反应的动力学规律。将反应物系分为裂化产物（＜４８０℃）、饱和分、芳香分、胶质、沥青质和焦炭（苯不溶物）六个集总，并提出了包含二级反应（沥青质缩合生焦反应）的六集总一级动力学网络；进而用复合形法求算了动力学网络的速率常数和活化能。结果表明，模型计算值与实验数据较为吻合，所提动力学模型对在分散型催化剂存在下孤岛渣油的加氢裂化反应是合理的。更多还原

【Abstract】 In this paper,the hydrocracking of Gudao residue in the presence of dispersed-phase Mo catalyst,i.e. ,ammonium phosphomolybdate(APM),was studied in a highpressure autoclave at 390～435C and 7.0 MPa hydrogen initial pressure.A kinetic modelwas developed on the basis of the six pseudo-components,comprising of fractions of thecracked residue(asphaltenes, resins,aromatics and saturates),coke(benzene insoluble)and volatiles(480℃). The reaction network included the eight reactions,i.e.,the first or-der reactions with respect to the four reactions of resins(resins cracked to aromatics, satu-rates and volatiles,and condensed to asphaltenes),and the two reactions of aromatics andsaturates to volatiles,as well as the reaction of asphaltenes cracked to valatiles, leaving thecondensation of asphaltenes (coke formation)ascribed to the second order reaction,The re-action rate constants and the activation energies were calculated using the complex method(i.e,,the randomly generated parameter estimates).The results indicated that there wasconvergence between the experimental data and the model predictiOn,the rate constants fol-lowed the Arrhenius relationship,the activation energies were reasonable for the eight reac-tions included in the network.This suggested that the six lumps kinetics model was reason-able for the hydrocracking of Gudao residue in the presence of dispersed phase Mo catalyst.更多还原