Abstract：A mathematical model describing the gas flow in a packed bed with novel internals was established, which considered the combined geometry of a packed bed of particles and the gas passages with baffles. Computational fluid dynamics (CFD) simulation was carried out to study the flow pattern and the residence time distribution (RTD) of gas phase under different operating conditions and reactor geometries. The experimental data of the pressure drop validated the CFD simulation at the reactor scale. The detailed flow field inside the reactor was disclosed with the simulation, which showed the zig-zag flow behavior of the gas phase through the packed bed and the gas passages. The gas did not by-pass the system because the reactor remained to be the configuration with multiple compartments connected in series. The design of the internal imposed strong influence on the gas flow field and the corresponding RTD, which allowed a large room for optimizing the packed bed with internals.
张学佳;程易;韩明汉. 新型内构件填充床反应器数值模拟-I.气相流场和停留时间分布[J]. , 2007, 7(1): 8-13.
ZHANG Xue-jia;CHENG Yi;HAN Ming-han. Numerical Simulation of a Packed Bed Reactor with Novel Internals-I. Flow Field and Residence Time Distribution of Gas Phase. , 2007, 7(1): 8-13.
2007, Vol. 7 
