Vacuum condensation package
Multiple units for olefin, alcohol, ester and surfactant process streams against chilled brine.
SOLVENT & VAPOR CONDENSATION
Low-pressure-drop condensers for atmospheric and vacuum service
Purpose-designed vapor passages, large nozzles and independent condensate and non-condensable outlets support stable recovery of valuable solvents.
Contact Engineering
Condensation design
Control pressure drop from inlet to vent
In vacuum and low-pressure processes, excessive pressure drop can reduce production capacity or destabilize the upstream process. The vapor nozzle, plate pattern, channel arrangement and non-condensable gas path must therefore be designed as one system.
- Large, customized vapor inlet connection
- Low-pressure-drop plate pattern
- Gravity-assisted condensate drainage
- Separate non-condensable gas outlet
- Direct connection close to vapor source
High heat transferThin plates and turbulent coolant flow reduce required surface area.
Low vapor resistanceChannel and nozzle geometry sized to protect vacuum conditions.
Compact layoutCan be installed near reactors, evaporators or distillation equipment.
Thermal-shock resistanceCircular plate geometry spreads thermal stress evenly.
No gasket maintenanceFully welded construction for solvent compatibility.
Material flexibility316L, 904L, 254 SMO, titanium, nickel and Hastelloy options.
Selection data
Information needed for accurate condensation sizing
| Vapor composition | Each condensable and non-condensable component, preferably mass or molar fraction. |
|---|---|
| Flow rate | Total vapor flow and expected range / turndown. |
| Pressure | Absolute operating pressure at exchanger inlet and allowable pressure drop. |
| Temperature | Inlet temperature and required condensate outlet temperature. |
| Cooling medium | Fluid, flow, inlet temperature and available outlet temperature. |
| Recovery target | Required condensation percentage or residual vapor specification. |
Representative experienceFLUOROCHEMICAL PROJECT CHEMICAL PLANT PHARMACEUTICAL DISTILLERY
Typical condensation duties
Hexane / isopropanol condenser
Atmospheric condensation around 65°C, using 7/12°C chilled water.
Mixed-solvent vacuum condenser
Butanol, ethyl acetate and air, with deep-vacuum operation and glycol cooling.
Alcohol vapor condenser and subcooler
Two-stage cooling using demineralized water and cooling water.
FAQ
Common engineering questions
Can the condenser operate under deep vacuum?
Yes, provided the complete vapor-side pressure profile is evaluated. Nozzle size, channel resistance, condensate drainage and non-condensable gas flow are critical.
Why use a separate non-condensable gas outlet?
Non-condensable gases can blanket heat-transfer surfaces and restrict condensate drainage. A dedicated outlet helps maintain effective area and stable operation.
Can two cooling stages be integrated?
Depending on temperature profile and layout, cooling-water and chilled-water duties can be arranged in separate units or a custom multi-section system.