A simplified split packing rotation packed bed (SP-RPB) model was designed, and the computational fluid dynamics (CFD) method was used to simulate the steady-state gas flow field compared with the same size general rotation packed bed (RPB). The influence of different rotation speed and feed rate on gas phase pressure, relative velocity and turbulent kinetic energy distribution were compared and analyzed. The pressure drop across each mesh lap was examined as well. Counters of gas velocity and pressure of RPB and SP-RPB in steady state had been obtained, in order to understand the hydrodynamic and flow patterns deeply. The plots of different rotation speed or feed rate attribute to pressure, relative velocity and turbulent kinetic energy also were investigated. They pointed out that the relative velocity of the gas entering each packing rings was the highest in the vicinity, and the distribution of turbulent kinetic energy was the same. And the appearance of each peak was determined solely by the arrangement of the packing ring. Both results of them indicated that SP-RPB could have multiple end effect regions located at packing ring edge. The increase in rotation speed had a more pronounced effect on the peak level than the feed rate. And the larger feed rate caused the velocity of the gas in the filler fluctuate more intensively, the peak value of the turbulent kinetic energy increased. Due to the thinner thickness of the packing in SP-RPB compared with the same size of RPB, the SP-RPB exhibited a lower pressure drop over the entire equipment range. By increasing the feed rate and reducing the rotation speed, the high pressure in the RPB range between the two packing layers of SP-RPB could be reduced. In addition, the pressure drop of SP-RPB on unit mesh lap was larger than PRB with the same size.