LimsPulse
Petroleum testing

Atmospheric Distillation Apparatus

Distils 100 mL of a fuel from a flask at a controlled rate and records the vapour temperature as each volume is collected. The resulting curve (IBP, T10, T50, T90, FBP) describes how the fuel evaporates.

  • Petroleum refining
  • Fuel terminals and retail quality control
  • Aviation fuel quality
  • Solvent manufacture
  • Independent testing laboratories
Photo of a Atmospheric Distillation Apparatus
Photo: Oilguy86, CC BY-SA 3.0 (cropped), via Wikimedia Commons
PREVENTIVE MAINTENANCE

Maintenance checklist

Each test

  • Clean and dry the flask; discard chipped or cracked flasks
  • Swab the condenser tube with a lint-free cloth
  • Wipe spills from the heater area

Weekly

  • Check condenser bath level and temperature
  • Clean the receiver level follower optics
  • Check stoppers and seals

Monthly / per SOP

  • Run a check sample and plot on a control chart
  • Check the barometer against a reference
  • Test the fire detection system as the manual describes

Annual

  • Calibrate temperature sensor(s) at several points
  • Verify the receiver volume reading
  • Service the heater, cooling system and fire suppression by the supplier
SAFETY

Safety precautions

Before you work on the Distillation unit
  • You are boiling a flammable fuel next to a heater. Never leave a run unattended and keep the fire suppression system armed and in date.
  • Operate in a well-ventilated area or a hood; vapour can escape at leaking joints or from the receiver.
  • Inspect every flask for cracks and chips; a broken flask spills hot fuel onto the heater.
  • Keep a CO₂ or dry powder extinguisher nearby; never use water on a fuel fire.
  • Allow the flask, residue and heater to cool before handling; use heat-resistant gloves.
  • Petrol contains benzene and other harmful vapours; avoid breathing vapour and skin contact. Read the SDS.
  • Store samples and waste in closed containers in a flammables cabinet, away from ignition sources.
In LimsPulse · Calibration Management

Keep every Distillation unit in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how