Method of analyzing sulfur content in fuels
OwnerRobert E. Kauffmaninventor
Life of this patent
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Abstract
A method of detecting the amount of sulfur compounds in fuels such as ultra low sulfur diesel (ULSD) fuels is provided in which a fuel sample is reacted with a solvent and an oxidizing agent to produce a reaction product which may be analyzed by visual observation and/or in combination with spectrophotometric or colorimetric analysis. The oxidizing agent may be selected from potassium permanganate, sodium dichromate, nitric acid, hydrogen peroxide, cumene hydroperoxide, and sodium hypochlorite, and may be used in combination with an acid.
Claims20
A method of detecting the sulfur content in fuels comprising:
- providing a fuel sample;
- mixing said fuel sample with at least a solvent and an oxidizing agent;
- and
- detecting a color change in said mixture.
A method of analyzing the sulfur content in fuels comprising:
- providing a fuel sample;
- mixing said fuel sample with at least a solvent and an oxidizing agent to form a mixture;
- and
- determining whether a color change of said mixture has taken place to determine sulfur content in said fuel sample.
A method of analyzing the sulfur content in fuels comprising:
- providing a fuel sample;
- providing an amount of an oxidizing agent comprising KMnO4;
- adding said oxidizing agent to an acidified solvent to form a mixture;
- adding said fuel sample to said mixture to form a reaction product;
- and
- determining whether a color change of said reaction product has taken place to determine sulfur content in said fuel sample.
Dependencies are inferred from the claim text.