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ASTM D5236

Distillation System according to ASTM D5236 (Potstill).

ASTM D52362026-07-15T22:13:12+00:00
ASTM D5236 Vacuum Distillation

DIST D-5236 CC

Computer controlled, fully automatic determination of distillation rates, cut points, fraction collection, and weighing.

DIST D-5236 HV

Special high vacuum model designed to exceed the ASTM standard vacuum range.

Features

The following features apply to both the DIST D-5236 CC and the DIST D-5236 HV:

  • Greatly reduce total test time with automatic vacuum reduction of the fully computer controlled model.
  • Achieve true ASTM D5236 “weight vs. temperature” with “dead volume” eliminating process.
  • Discharge of fraction products performed without vacuum fluctuation for reliable and repeatable TBP determination.
  • Reach higher AET with High Vacuum option down to 0.006 mmHg.

Key Specifications

Technical Specifications
Operation Temperature max. 400 °C in distillation flask
Final Cut Temperature max. 540 - 575 °C AET (depending on product)
Operation Pressure 0.1 - 10 mmHg (Torr)
Flask Size 10 L (stainless steel)
Charge 3.3 - 6.7 L
Fraction Collector 12 x 1,000 mL
Material borosilicate glass 3.3, SS 316 L/Ti, PTFE, FPM
Power Supply 230/400 V or 208/480 V, 3P + N + PE, 60 Hz; Others on request
Power Consumption maximum approx. 22.2 kW (single outlet, not including PC or optional calibration stations)
Operational Environment +10 - +30 °C
Dimensions (L x D x H) approx. 1.7x 1.1 x2.6 m
(incl. circulators, vacuum pump and control cabinet; Options may require an extension of these measurements)

Industry Applications

The DIST D-5236 CC is used across industries that require precise distillation of heavy hydrocarbon mixtures and crude oil.

Refineries: This system helps refine high-boiling components under reduced pressures, which promotes efficient separation of valuable fractions while reducing product loss. It also supports consistent yields and aids in managing operational costs.

Research and quality control labs: Detailed temperature and vapor data reveal key insights into sample composition. Labs gather information on atmospheric equivalent temperature (AET) and residue, which is critical for refining processes and product evaluations.

Biodiesel producers: Accurate assessment of distillation rates and boiling ranges helps ensure compliance with ASTM D1160, confirming that the biodiesel meets both performance and regulatory standards.

Detailed Features Breakdown

The DIST D-5236 CC is designed to handle the demanding requirements of distillation of heavy hydrocarbon. Key features include:

Advanced vacuum system2026-07-03T00:07:53+00:00

Provides stable conditions for deep cuts and maintains pressures suited for challenging samples. This vacuum control supports up to 565 C without risking product integrity.

Fraction collector and receivers2026-07-03T00:07:35+00:00

Automatically collect separated fractions in a controlled environment, minimizing fluctuations and providing accurate weight data.

Cold trap integration2026-07-03T00:07:17+00:00

Captures residual vapors during the test process, keeping the column and other components clean.

Real-time monitoring and control2026-07-03T00:06:57+00:00

Tracks vapor temperature, pressure, and other parameters throughout the system. Users can make rapid adjustments to the column settings and view immediate feedback.

User-friendly PC-based platform2026-07-03T00:06:39+00:00

Offers a streamlined interface for managing test operations, recording key measurements, and generating detailed reports for regulatory or research needs.

Benefits of Using the DIST D-5236 CC

The DIST D-5236 CC is one of the best vacuum distillation solutions available for its reliable handling of crude oil and heavy hydrocarbon mixtures:

  • Consistent performance
    Automated controls and a stable vacuum environment reduce operator intervention and help achieve reproducible results.

  • Regulatory confidence
    Adheres strictly to ASTM D5236, confirming accurate data on atmospheric equivalent temperature and ensuring that products meet specification requirements.

  • Efficient workflow
    Fast fraction collection, easy charge or addition of samples, and robust temperature control simplify the entire distillation process.

  • Versatile applications
    Handles varied samples within a single system, so research teams and production facilities can explore different distillation strategies without switching equipment.

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Contact Us

To learn more about PDS®, Pro-Pak, and the turnkey solutions that can help you and your application, complete this information form or call 814-308-5604 to speak with one of our specialists.

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