Chemistry: analytical and immunological testing – Lubricant – grease – mineral oil – hydrocarbon oil product – or...
Patent
1987-05-08
1988-11-08
Marcus, Michael S.
Chemistry: analytical and immunological testing
Lubricant, grease, mineral oil, hydrocarbon oil product, or...
436140, 356 70, G01N 3322, G01N 3330
Patent
active
047834161
ABSTRACT:
The invention disclosed is a method of determining gum content and performing quality control in the production of a gasoline to minimize the gum content in the produced gasoline. A representative sample of the gasoline is subjected to UV spectrophotometric analysis and the peak heights representing absorption in the range of 310 to 600 nm are integrated to determine a total absorption quantity which relates to the actual and potential quantity of gum in the gasoline. Use of this quality control technique will result in a refiner having more control over gum content at a hydrocarbon processing unit, such as a catalytic reformer.
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Robinson, "Handbook of Spectroscopy", vol. II, CRC Press Inc., Boca Raton, Fla., pp. 133-181 and p. 214, 1981.
Marcus Michael S.
McMahon Timothy M.
Muller Kimbley L.
Shell Oil Company
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