Distillation Tester LDT-T2012

Introduction

Distillation Tester is a safe and long life distillation tester which is designed corresponding to D1401 (Test Methods for Distillation Characteristics of Volatile Organic liquids for Industrial Use).

This petroleum testing is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

It is used to determine distillation characteristics of gasoline, aviation gasoline, jet fuels, special boiling point solvent, naphtha, diesel oil, distillate fuels and similar petroleum products.

Specifications

Graduated flasks	100 ml
Scale division of graduated flask	1 ml
Outer diameter of distillation flask	φ65
Refrigeration tube	φ14
Length of refrigeration tube	560 mm
Dimension	620 x 510 x 620 mm
Heating power system	1000 W
Power supply	AC 220 V ± 10 %, 50 Hz

Features

Adopt quartz glass tubes to enclose heating wire

Adjustable knob

Heating power of electric furnace can be continuously adjusted

Safe and with long useful life

FAQs

1. What is the role of the condenser tube in the Distillation Tester , and how does it affect test results?

The Distillation Tester condenser tube plays a crucial role in converting vaporized fuel fractions back into liquid form for precise volume measurement. This ensures accurate recovery of each distillate cut, which is essential for plotting a correct distillation curve. If the condenser is scaled, misaligned, or lacking proper cooling circulation, vapors may either escape or condense prematurely, resulting in inaccurate results. Proper cleaning, consistent cooling flow, and correct tube positioning are key to maintaining its performance.

2. How does the Distillation Tester handle volatile or low-boiling samples compared to high-boiling ones?

Distillation Tester is best suited for low- to mid-boiling petroleum fractions due to its atmospheric distillation setup. It offers precise heat control and an extended condenser to ensure stable performance with volatile fuels like naphtha or aviation gasoline. However, for heavier distillates such as lubricating oils or waxy residues, the system may struggle with heat retention, increasing the risk of thermal degradation. In such cases, a vacuum distillation model would be more suitable to lower boiling points and preserve sample integrity.

3. What should be done if the distillation curve shows overlapping or inconsistent boiling ranges during testing with the Distillation Tester ?

The Distillation Tester may show inconsistent or overlapping distillation patterns when there is sample contamination, improper glassware cleaning, or uncontrolled heating. To resolve this, operators should confirm that the sample is representative and uncontaminated, the receiver cylinder is clean and dry, and the heating rate aligns with standards. Inaccuracies may also result from worn components or misaligned thermometers. Repeating the test with a fresh setup and possibly recalibrating the system is often necessary to restore accuracy

4. What are the risks of overfilling or underfilling the flask during setup of the Distillation Tester ?

Distillation Tester distillation flask is calibrated for a 100?mL sample, and deviation from this volume introduces significant risk to the test quality. Overfilling can cause bumping or splashing, leading to cross-contamination and incorrect volume recovery. Underfilling results in insufficient vapor pressure, which may shift or flatten the boiling point curve. Maintaining the correct volume and reading the meniscus at eye level are vital to achieving reliable, -compliant results.

5. How should unexpected distillation behavior be interpreted during a test run using the Distillation Tester ?

Distillation Tester may show abnormal distillation curves such as erratic jumps or early plateaus due to contamination, heating inconsistency, or faulty condenser function. These irregularities could also point to adulterated fuel or moisture in the sample. Physical setup issues like misaligned thermometers or clogged condensers can skew readings as well. In such cases, a repeat test with a new sample and careful inspection of the system components is essential for isolating the cause.