Method for determining asphaltene stability of a hydrocarbon-containing material

Schabron, John F; Rovani, Joseph F

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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:: Schabron, John F; Rovani, Jr., Joseph F

Issue Date:: Tue Feb 05 00:00:00 EST 2013

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):: C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G7/12 - Controlling or regulating

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N30/02 - Column chromatography
G01N33/28 - Oils {, i.e. hydrocarbon liquids}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T436/116664 - with automated titrator
Y10T436/12 - Condition responsive control
Y10T436/21 - Hydrocarbon
Y10T436/212 - Aromatic
Y10T436/214 - Acyclic [e.g., methane, octane, isoparaffin, etc.]
Y10T436/255 - including use of a solid sorbent, semipermeable membrane, or liquid extraction
Y10T436/25625 - Dilution
Y10T436/2575 - Volumetric liquid transfer
Y10T436/25875 - Gaseous sample or with change of physical state

Show less

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.

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                    Schabron, John F, & Rovani, Jr., Joseph F. Method for determining asphaltene stability of a hydrocarbon-containing material.  United States.

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                    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.

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@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         = {Tue Feb 05 00:00:00 EST 2013},

  month        = {Tue Feb 05 00:00:00 EST 2013}

}

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