Title: Method and apparatus for continuously monitoring the presence of oil in water

Abstract: A sensitive arrangement for determining presence of oil, at low parts per million, in water. It employs infrared absorbtion measurement, and first mixes the water with an oil solvent that may be separated from the water after taking any oil into solution. Also, the solvent is one which does not have any significant infrared absorbency at a predetermined wave length, which does have absorbency by hydrocarbons. After separation of the oil solvent, it is continuously passed through an absorption cell in an infrared spectrometer, to monitor the presence of oil in the water.

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Inventors: Dille, Roger M. (Richmond, VA, US)
Van Stavern, Merle H. (Richmond, VA, US)
Shull, Don L. (Waynesboro, VA, US)
Gripshover, David F. (Richmond, VA, US)

Application Number: 636174
Filing Date: 1975-11-28
Publication_date: 1977-08-30
Assignee: Texaco Inc. (New York, NY)
Primary Class(es): 250/341.1 250/301, 250/304, 250/343
Other Classes:
US Patent Ref:

3627419	Dec, 1971	Thevenier	356/70.
3727049	Apr, 1973	Saunders	250/343.

Other Refs:
Primary Examiner: Church, Craig E.
Assistant Examiner:
Attorney: Whaley; Thomas H., Ries; Carl G., Dearborn; Henry C.