The Development of an Instrument to Measure Colour and Turbidity On-line in Refinery Streams
نویسنده
چکیده
Colour and turbidity measurement. An instrument has been designed to measure colour and turbidity using solid state light sources and sensors operating at 470 nni (blue) and 880 nni (infrared) respectively. It is intended to be a factory instrument suitable for detecting break through from filters and colour gain or loss over scctions of plant in a refinery. The measurements are exprcssed in absorbance units referred to a path length of 10 millimeters. A self-calibration feature is provided to zero the instrument on water. The optical cell, light sources and sensors are described. Results obtained by two instruments installed at Huletts refinery are presented.
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