Water in fuel

The measurement of water in hydrocarbon solvents and gasses is an important measurement in the petrochemical industry. The use of near-infrared (NIR) spectroscopy for water analysis is common as NIR offers high sensitivity and measurements can be undertaken in-line providing immediate results.

A Kemtrak DCP007-NIR LED process photometer can be used for measuring water in oil, LNG and fuels such as petroleum and aviation gasoline.

Water has two regions of activity in the NIR region between 1000 – 2000nm. At 1400nm the O-H stretch in the water molecule is measured, while at 1900nm water has a unique peak due to a combination of O-H stretch and
H-O-H bending. The water peak at 1900 is about five times as large as the water peak at 1400.

The Kemtrak DCP007-NIR LED process photometer uses a long life high performance NIR LED light source and robust fiber optics to deliver a drift and noise-free measurement with very high precision. Automatic compensation for sample turbidity and/or fouling of the optical windows ensures trouble free operation.

Kemtrak offer a comprehensive range of industrial measurement cells that are well suited for harsh industrial environment and for use in explosive atmospheres.