Still Versions - Fractional Distillation

Batch Mode Stills (left)  Continuous Mode Stills (right)

Batch Mode Stills

Used when relatively small quantities of liquid are to be processed, or when a high level of purity is required.

Typical Systems Include:

Boiling vessel with fill and drain valves, sight glass, sensors for liquid level, pressure and temperature, and extra ports.

  • Choice of heating options
  • Column section(s), pre-loaded with packing and required internals
  • High efficiency condenser
  • 3-way automatic reflux valve
  • Distillate cooler and sight glass
  • Receiving vessels for cut fractions (discharge pumps optional)
  • 3-way receiver selector valve
  • Control system – simple, PLC or pc-based
  • Skid platform and support structure for system

Continuous Mode Stills

Used when large or continuous quantities of liquid are to be processed and/or when a very high level of purity is not required.

Typical Systems Include:

  • Precision metering feed pump.
  • Feed preheater section with feedback control.
  • Valve manifold for selection of feed point to distillation column.
  • Column section(s), pre-loaded with packing and required internals.
  • High efficiency condenser.
  • 3-way automatic reflux valve.
  • Distillate cooler and sight glass.
  • Distillate and Bottoms discharge pumps.
  • Reboiler with steam, electric or hot oil heating, level switch, vapor return to column, bottoms discharge port.
  • Bottoms cooler.
  • Control system – simple, PLC or pc-based.
  • Skid platform and support structure for system.