What is the packing arrangement and gas flow direction in a vertical double-layer radial-flow purifier?
Thread Content
How are the alumina and molecular sieve fillers distributed within a vertical double-layer radial flow purifier, and what is the flow direction of the gas? Seeking guidance.
The vertical double-layer radial-flow purifier consists, from the outside in, of an outer shell, an alumina layer cylinder, a molecular sieve layer cylinder, and a central cylinder, with the inner cylinder suspended inside the outer cylinder. During adsorption, it proceeds from the outer shell to the central cylinder and then outwards; during regeneration, the process is reversed.
Ours is an adsorber for a double-bed bedroom; its structure consists of an air distributor at the bottom, followed by alumina on the upper layer, and then molecular sieve on top (the amount of filler should be determined according to the manufacturer’s specifications). ) The molecular sieve is covered with wire mesh. There is still some spare space on the molecular sieve, so it must be placed evenly. The gas will pass evenly through the packing via a gas distributor. The principle should be the same for vertical and horizontal types.
For vertical ones, it doesn’t matter whether they are level or not; as long as there is enough quantity, that’s fine…
1. In a vertical radial-flow system, alumina is on the outside while molecular sieve is on the inside; during adsorption, flow occurs from the outside toward the inside, and the same direction is used during desorption. The amounts of molecular sieve and alumina used are determined based on the adsorption capacity. 2. Different manufacturers use different designs; Linde’s systems feature a single-layer bed. 3. The type of flow pattern also matters greatly, with π-type and Z-type flows existing; one of the main design goals for radial-flow systems is to ensure even flow distribution