Flow through Packed Beds
Packed beds: These include rock piles, sand filters, soil in flower pots, cigarettes, and absorption columns. For good gas-liquid contacting, absorption columns are usually packed with specially shaped ceramic, plastic, or metal objects such as rings and saddles which have both a large surface area and high voidage; thus, they have a low resistance to flow.
Porous solids: These include both natural porous materials such as oil-bearing rock and pumice, and prepared structures such as fused alumina particles, polyurethane foam sponges, foam rubber mattresses, etc.
KeywordsSuperficial Velocity Irregular Particle Frictional Loss Absorption Column Kinetic Energy Term
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