The absorption tower is a key equipment for gas-liquid mass transfer processes. It uses liquid absorbents to selectively remove specific components from mixed gases, achieving gas purification, component recovery, or chemical production. The tower shell and internals are manufactured from high-quality stainless steel (304, 316L, etc.), offering excellent corrosion resistance and mechanical strength. It is widely used in chemical, petrochemical, environmental protection, metallurgical, and pharmaceutical industries.
Main Structural Types
| Type | Features | Applications |
|---|---|---|
| Packed Tower | Packed with structured or random packing; large contact area, low pressure drop | Small to medium scale, corrosive media, low pressure drop requirements |
| Tray Tower | Equipped with multiple trays (sieve, valve, bubble cap, etc.); staged contact | Large-scale production, processes requiring many theoretical stages |
| Spray Tower | Simplest structure; empty tower with spray nozzles | Dust removal, simple gas scrubbing, pretreatment |
| Cyclic Plate Tower | Uses centrifugal force to enhance gas-liquid contact; high mass transfer efficiency | Dust-laden gas purification, integrated desulfurization and dedusting-8 |
Technical Parameter Range
| Parameter | Typical Range |
|---|---|
| Tower diameter | DN200 ~ DN6000+ (customizable) |
| Tower height | 3 ~ 50 meters (depending on process) |
| Design pressure | Atmospheric ~ 10.0 MPa (higher available) |
| Design temperature | -50°C ~ 450°C |
| Shell material | 304 / 304L / 316 / 316L / Duplex stainless steel / Special alloys |
| Internals material | Same as shell or higher grade |
| Packing types | Pall rings, Cascade rings, IMTP saddles, structured packing (wire mesh/perforated plate) |
| Packing material | Stainless steel, ceramic, plastic |
| Gas-liquid ratio | Process-dependent (typically 500~5000 Nm³/m³) |

