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Measuring the Electrical Properties of Chemicals Using Capacitance Technology

Measuring the Electrical Properties of Chemicals Using Capacitance Technology
Manufacturers of pressure-sensitive adhesives and chemical solutions need to distinguish between slight variations in their chemical feedstock and to ensure
that the correct materials are properly stored and used in their processing facilities. The issue is that many types of chemicals are colorless and have very similar viscosities and densities, sometimes making it almost impossible to distinguish one from another.

The Universal IV analyzer from Drexelbrook is currently used to measure very small capacitance differences in a flowing oil stream in order to determine the
amount of water present. The application of this technology was developed for the oil industry and is used throughout the upstream oil transfer process.

When a manufacturer of chemical solutions needs to differentiate between vinyl monomers in a chemical process, for example, or to ensure loading station integrity, one issue is how to confirm the exact chemical variant in the pipe/vessel. If all physical properties such as color, viscosity, and density of the liquids are similar, it can be difficult for the measurement instrumentation to prevent the wrong material from ending up in the wrong process.
Mistakes can happen while loading and unloading material into pre-process storage tanks. A single improper load can be very expensive to correct, sometimes
on the order of tens if not hundreds of thousands of dollars.

If an accident does occur, tanks might have to be emptied and refilled, precipitating a costly fix, as chemicals will need to be transferred, tanks cleaned,
and the proper chemicals added; all causing production downtime.

The Solution
Drexelbrook’s modified Universal IV Transmitter can deliver the critical measurements needed to ensure an uninterrupted workflow and maintain product integrity.

Universal IV was originally designed to measure fluid levels in tanks and determine the amount of water present in oil by accurately determining the electrical capacitance changes in the media. It has been a tremendous success in storage facilities as well as on drilling sites.

Drexelbrook Universal IV can measure extremely small capacitance changes on the order of <1pF. These differences have a direct correlation to the physical properties in a tank such as fluid position or material composition. This is ideal for chemical applications, as the Universal IV can even be
mounted on in-line piping at the manufacturing site to track these materials in real-time.

Chemical manufacturers have tested Drexelbrook Universal IV systems on loading platforms at truck transfer stations and successfully monitored very small capacitance differences that allow them to distinguish between materials.


Other Solutions
The implementation of this instrumentation helps prevent accidents by ensuring that the proper chemicals are used when they are needed.
This eliminates waste products, and saves manufacturers a significant amount of money per year.

The Universal IV delivers reliable measurements, trustworthy longevity, and a fast ROI.
• Ensures the quality of chemical feedstock
• Offers various models to fit almost any application
• Ignores product coatings and build-ups
• Saves money by minimizing accidental transfers
• Provides easy calibration
• Temperature range: Up to 232°C (450°F)
• Process pressure: Up to 103 bar (1,500 psi)

Request more information to see how we can help you with a level measurement solution that suits your need.

Download this application note as a PDF