Yingnai FRP Fractionating Tower is designed for multi-stage separation of chemically aggressive mixtures within the temperature and pressure limits of the selected composite system. Packed beds or trays provide controlled vapor-liquid contact, while corrosion-resistant construction reduces maintenance. Tower height, diameter, stage arrangement, reflux connections, distributors and material system can be customized for the required fractionation duty.
| Item | Typical Technical Specification |
| Product Family | FRP process towers, packed absorbers, wet scrubbers, drying towers and tail-gas treatment equipment |
| Construction Material | Glass-fiber-reinforced thermoset composite with a corrosion-resistant resin system |
| Laminate Structure | Resin-rich corrosion barrier, structural laminate and external protective layer |
| Resin Options | Isophthalic polyester, bisphenol-A vinyl ester, novolac vinyl ester or a process-qualified resin |
| Typical Gas Flow Range | 3,000–600,000 m³/h; larger duties may use multiple towers or parallel trains |
| Typical Tower Diameter | 800–5,800 mm per tower; larger or non-circular configurations can be engineered |
| Typical Tower Height | Approximately 4,500–24,000 mm; determined by contact stages, packing depth and disengagement space |
| Operating Pressure | Normally near atmospheric pressure; specified positive pressure and vacuum conditions require structural verification |
| Typical Gas Velocity | Approximately 1.0–3.0 m/s for preliminary sizing, subject to flooding, entrainment and pressure-drop checks |
| Typical Overall Pressure Drop | Approximately 500–2,000 Pa for packed or spray-type systems; low-pressure-drop designs can be developed |
| Operating Temperature | Selected according to gas chemistry, normal temperature, maximum temperature and resin heat-resistance capability |
| Gas-Liquid Contact | Counter-current packed bed, spray tower, tray contact, bubbling contact or a combined configuration |
| Typical Internals | Packing support, random or structured packing, liquid distributor, spray nozzles, trays, baffles, demister and redistributor |
| Packing Materials | PP, PVC, CPVC, PVDF, ceramic or FRP packing selected according to chemistry and temperature |
| Liquid Circulation System | Corrosion-resistant pump, piping, spray headers, strainers, tank or integral sump, dosing and level control |
| Mist Elimination | Mesh pad, vane-type or multi-stage demister selected according to droplet size and allowable carryover |
| Nozzle Connections | Inlet, outlet, recirculation, drain, overflow, vent, manhole, inspection opening and instrument connections |
| Support Arrangement | Integral FRP base, skirt, support lugs, steel frame or reinforced-concrete foundation interface |
| External Design Loads | Dead load, operating liquid load, wind, seismic, connected-piping load, platform load and thermal movement |
| Surface Finish | Smooth resin-rich internal surface and UV-resistant external finish; colour can be customized |
| Inspection and Testing | Material verification, visual and dimensional inspection, laminate thickness, Barcol hardness, cure verification and leak testing |
| Applicable Standards | ASME RTP-1, ASTM C582, ASTM C581 and ASTM D2583 when specified by the project |
| Customization | Diameter, height, resin, laminate schedule, nozzles, packing, distributor, demister, supports, platforms and access arrangements |
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