关键词: 重油, 催化裂解, 气固两相流, 数值模拟, 计算颗粒流体动力学

Abstract: To further understand the fluid flow behavior and flow field distribution during heavy oil catalytic cracking in the reactor, computational particle fluid dynamics (CPFD) simulations were conducted for the heavy oil high-efficiency catalytic cracking (RTC) technology. A 6-lump kinetic model was adopted for heavy oil catalytic cracking, the Eulerian model was used for the gas phase, and the Lagrangian model was applied for the particle phase. The simulation results show that the error between simulated and experimental values is less than 10%, indicating the reliability of the established model. The RTC reactor is characterized by "quasi-uniform velocity, quasi-dense phase, and quasi-uniform temperature".

Key words: heavy oil, deep catalytic cracking, gas solid two-phase fluid, numerical simulation, computational particle fluid dynamics