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Title: Method for determining asphaltene stability of a hydrocarbon-containing material

Abstract

A method for determining asphaltene stability in a hydrocarbon-containing material having solvated asphaltenes therein is disclosed. In at least one embodiment, it involves the steps of: (a) precipitating an amount of the asphaltenes from a liquid sample of the hydrocarbon-containing material with an alkane mobile phase solvent in a column; (b) dissolving a first amount and a second amount of the precipitated asphaltenes by changing the alkane mobile phase solvent to a final mobile phase solvent having a solubility parameter that is higher than the alkane mobile phase solvent; (c) monitoring the concentration of eluted fractions from the column; (d) creating a solubility profile of the dissolved asphaltenes in the hydrocarbon-containing material; and (e) determining one or more asphaltene stability parameters of the hydrocarbon-containing material.

Inventors:
;
Issue Date:
Research Org.:
The University of Wyoming Research Corporation (Laramie, WY)
Sponsoring Org.:
USDOE
OSTI Identifier:
1083223
Patent Number(s):
8367425
Application Number:
13/490,316
Assignee:
The University of Wyoming Research Corporation (Laramie, WY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
DOE Contract Number:  
FC26-98FT40322
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Schabron, John F, and Rovani, Jr., Joseph F. Method for determining asphaltene stability of a hydrocarbon-containing material. United States: N. p., 2013. Web.
Schabron, John F, & Rovani, Jr., Joseph F. Method for determining asphaltene stability of a hydrocarbon-containing material. United States.
Schabron, John F, and Rovani, Jr., Joseph F. Tue . "Method for determining asphaltene stability of a hydrocarbon-containing material". United States. https://www.osti.gov/servlets/purl/1083223.
@article{osti_1083223,
title = {Method for determining asphaltene stability of a hydrocarbon-containing material},
author = {Schabron, John F and Rovani, Jr., Joseph F},
abstractNote = {A method for determining asphaltene stability in a hydrocarbon-containing material having solvated asphaltenes therein is disclosed. In at least one embodiment, it involves the steps of: (a) precipitating an amount of the asphaltenes from a liquid sample of the hydrocarbon-containing material with an alkane mobile phase solvent in a column; (b) dissolving a first amount and a second amount of the precipitated asphaltenes by changing the alkane mobile phase solvent to a final mobile phase solvent having a solubility parameter that is higher than the alkane mobile phase solvent; (c) monitoring the concentration of eluted fractions from the column; (d) creating a solubility profile of the dissolved asphaltenes in the hydrocarbon-containing material; and (e) determining one or more asphaltene stability parameters of the hydrocarbon-containing material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

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Works referenced in this record:

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