Field dispersant test for determining the fouling tendency of a

Details Field dispersant test for determining the fouling tendency of a Field dispersant test for determining the fouling tendency of a

1990-07-03

1992-10-20

Housel, James C.

Chemistry: analytical and immunological testing

Hydrocarbon

Aromatic

436 2, 436 60, 436139, 436164, 585 13, 585950, 208 48AA, C10C 120

Patent

active

051569752

ABSTRACT:
The methods and test kit of the present invention provide a fast, inexpensive, reproducible, simple, and accurate method for optimizing the dosage of an asphaltene dispersant antifouling agent for a given crude oil containing asphaltenes. A method is provided wherein a sample of the crude oil is diluted with a quantity of an aromatic organic solvent. To the diluted crude oil is added a known amount of the antifouling agent being evaluated. A portion of the diluted crude oil containing the antifouling agent is removed and mixed with a quantity of a liquid paraffinic hydrocarbon. The concentration of materials which remain dispersed in the liquid paraffinic hydrocarbon is measured. The inventive methods are useful to evaluate a single dose of an antifouling agent or may be used to simultaneously evaluate a plurality of doses in order to determine which dose is most effective for a given sample of crude oil.

REFERENCES:
patent: 4762797 (1988-08-01), Dickakian
patent: 4781892 (1988-11-01), Dickakian
patent: 4781893 (1988-11-01), Dickakian
patent: 4843247 (1989-06-01), Yamazoe et al.
Fields, D. E. et al., "Predicting Crude Oil Fouling Tendency", AICHE National Meeting Presentation, Mar. 10, 1988.

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