发明名称 |
METHOD FOR DETERMINING ASPHALTENE STABILITY OF A HYDROCARBON-CONTAINING MATERIAL |
摘要 |
A method for determining asphaltene stability in a hydrocarbon-containing material having solvated asphaltenes therein is disclosed. The method 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 gradually and continuously changing the alkane mobile phase solvent to a final mobile phase solvent having a solubility parameter at least 1 MPa0.5 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.
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申请公布号 |
US2011062058(A1) |
申请公布日期 |
2011.03.17 |
申请号 |
US20100833814 |
申请日期 |
2010.07.09 |
申请人 |
CHEVRON U.S.A. INC. |
发明人 |
ROGEL ESTRELLA;OVALLES CESAR;MOIR MICHAEL |
分类号 |
C10G31/06;C10G31/00;G01N30/02 |
主分类号 |
C10G31/06 |
代理机构 |
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