Structural Improvement and Numerical Simulation of a Perforated Distributor in an Adsorption Tower

A "closed" perforated plate distributor was proposed to improve the gas distribution in an industrial adsorption tower. Compared with the industrial perforated plate distributor, the designed distributor restricts the space for the disordered movement of gas under the perforated plate. The new distributor effectively converts the gas from the initial axial flow on the inlet section to the axial flow on the tower section to improve the gas uniformity. In addition, the gas velocity at the edge of the inlet cross section of the adsorbent bed is increased by opening holes on the bottom plate. The uniformity of gas distribution is further improved. The simulation method in this study and the distribution performance of the "closed" perforated plate distributor have been verified by experiments. Under the guidance of the radial flow distribution mechanism, a "closed" perforated plate distributor was proposed. The inlet gas can effectively convert from a radial flow through the small cross section of inlet to a radial flow through the large cross section of tower. Compared with other perforated plate distributors, the gas distribution performance of the new structure is greatly improved. image