Filling generally refers to materials that are filled in other objects. In chemical engineering, packing refers to the inert solid materials installed in the packed tower, such as Pall rings and Raschig rings, etc., whose function is to increase the gas-liquid contact surface...

The chemical packing for sewage treatment includes a circular ring frame, a square grid structure is arranged in the circular ring frame, and a square reinforcing rib is arranged in the middle of the grid structure...

For a separation task, it is often necessary to determine whether to choose a plate tower or a packed tower, that is, to choose a tower type, which requires a comprehensive understanding of the performance of the plate tower and the packed tower...