Method and apparatus for quantitative determination of components in residual fuel oils
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United States of America Patent
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Sep 30, 1997
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N/A
app pub date -
Jul 12, 1996
filing date -
Jul 13, 1995
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Expired
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Abstract
In a method and an apparatus for determining a content of an aliphatic hydrocarbon insoluble matter in a residual fuel oil, the method includes the steps of: (a) measuring absorbances of a sample solution having an aliphatic hydrocarbon insoluble matter suspended in the sample solution at two spaced wavelengths of light in a wavelength range from 500 nm to 1,000 nm; and (b) performing an operation to determine the content of the aliphatic hydrocarbon insoluble matter in the sample solution by inserting the measured absorbances into the specific correlations. The contents of the insoluble matter in aliphatic hydrocarbons and asphaltene in the residual fuel oil can be determined in a precise and rapid manner even if the oil contains the particles of aromatic hydrocarbons such as toluene.
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