Methods for estimating properties of hydrocarbons comprising asphaltenes based on their solubility

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United States of America Patent

PATENT NO 9458389
SERIAL NO

14152661

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Abstract

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Disclosed herein is a method of estimating a property of a hydrocarbon comprising the steps of: preparing a liquid sample of a hydrocarbon, the hydrocarbon having asphaltene fractions therein; precipitating at least some of the asphaltenes of a hydrocarbon from the liquid sample with one or more precipitants in a chromatographic column; dissolving at least two of the different asphaltene fractions from the precipitated asphaltenes during a successive dissolution protocol; eluting the at least two different dissolved asphaltene fractions from the chromatographic column; monitoring the amount of the fractions eluted from the chromatographic column; using detected signals to calculate a percentage of a peak area for a first of the asphaltene fractions and a peak area for a second of the asphaltene fractions relative to the total peak areas, to determine a parameter that relates to the property of the hydrocarbon; and estimating the property of the hydrocarbon.

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Patent Owner(s)

Patent OwnerAddress
WESTERN RESEARCH INSTITUTE INC3474 NORTH 3RD STREET LARAMIE WY 82072

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rovani,, Jr Joseph F Laramie, US 20 314
Schabron, John F Laramie, US 34 546

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