Abstract：The composition and reaction characteristics of coking cycle gas oil differ significantly from those of conventional heavy oils. However, current research on coking reaction kinetics primarily focuses on vacuum residue oil systems, with relatively limited studies dedicated to coking cycle gas oil. This study systematically investigated the reaction kinetic behavior of coking cycle gas oil. Based on its distillation range distribution, an intermediate virtual lumping approach was employed to develop a thermal reaction kinetic model specifically tailored for coking cycle gas oil. During model resolution, an equivalent transformation method was applied, incorporating the effects of both heating and cooling phases on reaction outcomes. The resulting model parameters exhibited high statistical reliability, with correlation coefficients ranging from 0.75 to 0.99. Model validation results demonstrated that the predicted yields of each lumped product were in close agreement with experimental data, indicating that the proposed lumped kinetic model and its parameter set accurately represented the product distribution of coking cycle gas oil under thermal reaction conditions. This study provides critical theoretical support for process simulation of coking cycle gas oil heating furnaces and optimization of tubular thermal reaction processes.
BAN Xinhai,ZHENG Xutao,WANG Baoshi et al. Investigation into the Tubular Thermal Reaction Kinetics Model of the Coking Cycle Gas Oil[J]. Chemical Reaction Engineering and Technology, 2026, 42(1): 46-52.
