Method for the measurement of precipitation of asphaltene in oil

Details Method for the measurement of precipitation of asphaltene in oil Method for the measurement of precipitation of asphaltene in oil

1992-11-20

1995-05-30

Redding, David A.

Chemistry: analytical and immunological testing

Lubricant, grease, mineral oil, hydrocarbon oil product, or...

436 2, 436139, 436140, 436150, 73 5305, 73 5307, G01N 2706

Patent

active

054200407

ABSTRACT:
The invention provides a method and an apparatus for measuring asphaltene precipitation in a petroleum product. The inventive method quantifies the precipitation by measuring changes in the petroleum product's conductivity or capacitance. The inventive apparatus comprises a measuring cell adapted to be filled with a petroleum product or a solution of the product and a flocculant, together with an instrument electrically coupled to the measuring cell for measuring the product's or solution's conductivity or capacitance.

REFERENCES:
patent: 4434233 (1984-02-01), Bzdula
patent: 5156975 (1992-10-01), Nelson
Biktasheva, A. D. "Rapid method for determining asphaltene content in petroleums." Nefteprom. Delo, Nauch. Tekh. Sb. 1967(5), 29-31.
Neumann, H. J. "Definition and analytical determination of the so-called asphaltenes." Brennst.-Chem. 48(3), 66-9 (1967).

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