Probing hydrocarbon dynamics at asphaltene/maltene interfaces for the global characterization of bitumen
Copyright © 2021 Elsevier Inc. All rights reserved..
HYPOTHESIS: The objective is to noninvasively probe the local hydrocarbon dynamics at asphaltene/maltene interfaces to reveal the global characteristics of bitumen at increasing temperatures and under various mechanical constraints.
EXPERIMENTS: We propose multidimensional (1D and 2D) nuclear magnetic relaxation (NMR) experiments to characterize the dynamic properties of hydrocarbons for a set of bitumen from 40 to 180 °C. The convergence towards universal theoretical modelling of NMR relaxation experiments gives a comprehensive understanding of hydrocarbon transport in these very weakly permeable samples. Moreover, a multivariate statistical analysis allows for correlating these NMR relaxation data for all bitumen samples to the main empirical parameters by qualifying the bitumen grading, such as the penetrability, softening and fragility points over a large range of temperatures.
FINDINGS: These new experimental and theoretical multiscale approaches link hydrocarbon interfacial dynamics to the global characteristics of various bitumen types. This is critical for grading these universally encountered materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:593 |
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| Enthalten in: |
Journal of colloid and interface science - 593(2021) vom: 05. Juli, Seite 21-31 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Serve, Olivier [VerfasserIn] |
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| Links: |
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| Themen: |
Asphaltenes |
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| Anmerkungen: |
Date Completed 20.04.2021 Date Revised 20.04.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.jcis.2021.02.076 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM322872588 |
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| 100 | 1 | |a Serve, Olivier |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Probing hydrocarbon dynamics at asphaltene/maltene interfaces for the global characterization of bitumen |
| 264 | 1 | |c 2021 | |
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| 500 | |a Date Completed 20.04.2021 | ||
| 500 | |a Date Revised 20.04.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Inc. All rights reserved. | ||
| 520 | |a HYPOTHESIS: The objective is to noninvasively probe the local hydrocarbon dynamics at asphaltene/maltene interfaces to reveal the global characteristics of bitumen at increasing temperatures and under various mechanical constraints | ||
| 520 | |a EXPERIMENTS: We propose multidimensional (1D and 2D) nuclear magnetic relaxation (NMR) experiments to characterize the dynamic properties of hydrocarbons for a set of bitumen from 40 to 180 °C. The convergence towards universal theoretical modelling of NMR relaxation experiments gives a comprehensive understanding of hydrocarbon transport in these very weakly permeable samples. Moreover, a multivariate statistical analysis allows for correlating these NMR relaxation data for all bitumen samples to the main empirical parameters by qualifying the bitumen grading, such as the penetrability, softening and fragility points over a large range of temperatures | ||
| 520 | |a FINDINGS: These new experimental and theoretical multiscale approaches link hydrocarbon interfacial dynamics to the global characteristics of various bitumen types. This is critical for grading these universally encountered materials | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Asphaltenes | |
| 650 | 4 | |a Bitumen | |
| 650 | 4 | |a Colloidal systems | |
| 650 | 4 | |a Dynamic viscosity | |
| 650 | 4 | |a Hydrocarbon transport | |
| 650 | 4 | |a Maltenes | |
| 650 | 4 | |a Multivariate analysis | |
| 650 | 4 | |a NMR relaxation | |
| 650 | 4 | |a T(1)-T(2) correlation maps | |
| 700 | 1 | |a Choblet, Hugo |e verfasserin |4 aut | |
| 700 | 1 | |a Livadaris, Vincent |e verfasserin |4 aut | |
| 700 | 1 | |a Korb, Jean-Pierre |e verfasserin |4 aut | |
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