Abstract: The lumping kinetic model for catalytic disproportionation of rosin in 200# solvent naphtha on modified Pd/C was investigated in nitrogen atmosphereThe reaction products at 48315—53315 K were tracked by online analysis with capillary gas chromatographAccording to the reaction mechanism and characteristics of catalytic disproportionation of rosin，the lumped components of the complex reaction system were defined and a reaction network was proposedThe five lumping kinetic models of abietic type resin acid，pimarenoic acid type resin acid，hydrogenated abietic type resin acid，hydrogenated pimarenoic acid type resin acid and dehydroabietic acid were established based on structural group and approximate reaction kinetic theory according to the fundamental principles of lumping methodThe kinetic model parameters were estimated with the Levenberg-Marquart method by programming Matlab and SPSS statistics software，and the activation energies were 11139 kJ·mol-1，10876 kJ·mol-1，9735 kJ·mol-1 for abietic type resin acid hydrogenation and dehydrogenation and pimarenoic acid type resin [JP3]acid hydrogenation respectivelyThe final results demonstrated that the lumping model could characterize the kinetic behavior of the complex reaction and predict the concentration distribution of the multi-products at 54315 K.