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1. (WO2018222476) PROCÉDÉ ET OUTIL DE PRÉDICTION DES PROPRIÉTÉS D'UNE ÉMULSION D'ASPHALTE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS:

1. A method for predicting asphalt emulsion properties, comprising:

identifying a crude slate, the crude slate comprising crude components from a plurality of crude sources, the crude components being present in the crude slate in a first set of component weight ratios; calculating a second set of component weight ratios based on a cut point temperature for an asphalt fraction based on the crude slate, the asphalt fraction comprising asphalt components corresponding to the crude components, the asphalt components being present in the asphalt fraction in the second set of component weight ratios;

receiving a first set of emulsion formulation input parameters corresponding to a first set of emulsion formulation conditions;

calculating one or more first emulsion properties for each asphalt component in the asphalt fraction based on the first set of emulsion formulation input parameters and one or more fit parameters associated with each asphalt component;

determining one or more first emulsion properties for the asphalt fraction, the one or more first emulsion properties for the asphalt fraction comprising a linear combination of the calculated one or more first emulsion properties for each asphalt component in the asphalt fraction, the linear combination being based on the second set of asphalt component weight ratios;

modifying at least one of the emulsion formulation input parameters to form a modified set of emulsion formulation parameters;

calculating one or more modified emulsion properties for each asphalt component in the asphalt fraction based on the modified set of emulsion formulation input parameters and the one or more fit parameters associated with each asphalt component; and

determining one or more modified emulsion properties for the asphalt fraction, the one or more modified emulsion properties for the asphalt fraction comprising a linear combination of the calculated one or more modified emulsion properties for each asphalt component in the asphalt fraction, the linear combination being based on the second set of asphalt component weight ratios.

2. The method of claim 1 , wherein the cut point temperature comprises a cut point temperature for vacuum distillation of the feed; or wherein the cut point temperature comprises a virtual cut point temperature, the virtual cut point temperature being based on a vacuum distillation cut point temperature and at least one of a refinery identity and a vacuum distillation equipment configuration.

3. A method for predicting asphalt properties, comprising:

forming a first asphalt emulsion from an asphalt fraction under a first set of emulsion formulation conditions, the asphalt fraction comprising asphalt components from a plurality of crude sources, the asphalt fraction being formed from separation of a feed comprising the plurality of crude sources at a cut point temperature to form a 538°C+ fraction and processing the 538°C+ fraction under asphalt formation conditions to form the asphalt fraction, the plurality of crude sources being present in the feed in a first set of component weight ratios;

calculating a second set of component weight ratios for the asphalt components in the asphalt fraction, the second set of component weight ratios being based on the cut point temperature; receiving a first set of emulsion formulation input parameters corresponding to the first set of emulsion formulation conditions;

calculating one or more first emulsion properties for each asphalt component in the asphalt fraction based on the first set of emulsion formulation input parameters and one or more fit parameters associated with each asphalt component;

determining one or more first emulsion properties for the asphalt fraction, the one or more first emulsion properties for the asphalt fraction comprising a linear combination of the calculated one or more first emulsion properties for each asphalt component in the asphalt fraction, the linear combination being based on the second set of asphalt component weight ratios;

modifying at least one of the emulsion formulation input parameters to form a modified set of emulsion formulation parameters;

calculating one or more modified emulsion properties for each asphalt component in the asphalt fraction based on the modified set of emulsion formulation input parameters and the one or more fit parameters associated with each asphalt component;

determining one or more modified emulsion properties for the asphalt fraction, the one or more modified emulsion properties for the asphalt fraction comprising a linear combination of the calculated one or more modified emulsion properties for each asphalt component in the asphalt fraction, the linear combination being based on the second set of asphalt component weight ratios; and

forming a second asphalt emulsion from the asphalt fraction under a second set of emulsion formulation conditions corresponding to the modified set of emulsion formulation input parameters.

4. The method of any of the above claims, wherein the asphalt fraction comprises at least four asphalt components.

5. The method of any of the above claims, wherein the one or more fit parameters associated with each asphalt component in the asphalt fraction comprise coefficients for a polynomial having four or fewer terms.

6. The method of any of the above claims, wherein the one or more first emulsion properties comprise at least one of an emulsion viscosity, a maximum volume fraction, an emulsion breaking index, or a combination thereof, the emulsion viscosity optionally comprising a kinematic viscosity, a pseudo-viscosity, or a combination thereof.

7. The method of any of the above claims, wherein the emulsion input parameters comprise a water content, a type of emulsifier, an amount of emulsifier, one or more temperatures associated with forming an emulsion, or a combination thereof.

8. The method of any of the above claims, further comprising updating at least one fit parameter associated with an asphalt component based on a measured property of the first asphalt emulsion, the second asphalt emulsion, or a combination thereof.

9. The method of any of the above claims, further comprising displaying the one or more first emulsion properties for each asphalt component in the asphalt fraction; or further comprising displaying the one or more modified emulsion properties for each asphalt component in the asphalt fraction; or a combination thereof.

10. The method of any of the above claims, further comprising displaying one or more first emulsion properties for one or more asphalt components not present in the asphalt fraction; or further comprising displaying one or more first emulsion properties for one or more asphalt components not present in the asphalt fraction; or a combination thereof.

11. The method of any of the above claims, further comprising calculating one or more first emulsion properties for an additional plurality of asphalt fractions; and displaying a first bounding shape based on the calculated one or more first emulsion properties for the additional plurality of asphalt fractions.

12. The method of claim 11, further comprising calculating one or more modified emulsion properties for the additional plurality of asphalt fractions; and displaying a modified bounding shape based on the calculated one or more modified emulsion properties for the additional plurality of asphalt fractions, the additional plurality of asphalt fractions optionally comprising asphalt fractions derived from a single refinery.

13. The method of claim 11 or 12, wherein the determined one or more first properties for the asphalt fraction are outside the first bounding shape, wherein the determined one or more modified properties for the asphalt fraction are inside the first bounding shape, or a combination thereof.

14. The method of claim 1 1 or 12, wherein modifying at least one of the emulsion formulation input parameters comprises performing a constrained optimization, the constrained optimization optionally being performed to determine modified emulsion formulation input parameters to

produce an emulsion within at least one of the first bounding shape and the modified bounding shape.

15. An asphalt emulsion property prediction tool, comprising: a processor and an associated memory, the memory comprising computer-executable instructions that, when executed by the processor, provide a method comprising the method of any of claims 1 - 13.