RAPIDIST-4 – ADVANCED DISTILLATION PROCESS ANALYZER TECHNOLOGY FOR INDUSTRY- LEADING PERFORMANCE AND ROBUSTNESS
To remain competitive, today’s refi ners must employ all optimization tools available to run processes (e.g. blending units) as economically as possible while, on the other hand, keeping as much fl exibility as possible to cope with increasing demands such as constantly changing feedstocks and new blending recipes. The use of online physical property analyzers is one of the key tools to reach those objectives as they measure important quality properties in the process and fi nal blending quality directly. One of the most common quality parameter of liquid hydrocarbons is the boiling response, which is typically measured according to the ASTM D86 standard. The analysis method is based on distillation, a physical method of separating the component substances from a liquid mixture by selective vaporization and re-condensation based on differences in volatilities. This analysis gives important information about the sample properties and as a result, behavior during storage and use.
Leveraging Bartec Benke’s decades of experience in physical property analysis and an installed base of well above 2000 units, the rapiDist-4 Distillation Process Analyzer was developed to target the growing demands of 21st-century refi neries. With highly accurate boiling curve measurements, cycle times as fast as 10 minutes and high closeness to the ASTM D86 procedure, it is the perfect choice for fast process control (e.g. atmospheric distillation columns and blending processes).
the distillation process through detection of the meniscus in the receiver cuvette from 0% to FBP. The IBP is determined separately through an additional sensor in the receiver cuvette. This ensures the highest reliability and precision in measuring the IBP. The sample volume, dosed prior to each run, is measured in the dosing cuvette using the same optical imaging technique. The result and resolution of volume measurement fully correlates with the requirements of ASTM D86. Another advantage of this measuring principle is the detection of the complete meniscus in the cuvette which, for the calculation of volumes, ensures precise, reliable and quality data even in the presence of particles, drops and bubbles.
Figure 2: Results from a refi nery diesel unit. Repeatability limits according to ASTM D86 are marked as dotted lines.
Figure 1: Bartec Benke rapiDist-4 with optional chiller installed
Industry leading distillation analyzer technology
The rapiDist-4 analyzer uses an advanced optical imaging measurement technology that combines highly precise volume measurement with unrivaled robustness. The optical imaging device detects continuously, in real-time, the volume of distillate during
Outstanding correlation with ASTM D86
The rapiDist-4 analyzer provides real distillation measurement with true volume measurement resulting in outstanding correlation with the ASTM D86. Unlike other distillation process analyzers on the market, the IBP and FBP are directly measured by the rapiDist-4 removing the need for uncertain extrapolation. Furthermore, there is no need for any timely and cumbersome recalibration when changing to new blending recipes or changing sample composition regardless of product type: gasoline, naphtha, jet fuel, fuel oil, diesel fuel, petroleum products and other liquid hydrocarbons.
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