Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media
Carbon nanoparticles (CNPs) are becoming promising candidates for oil/gas applications due to their biocompatibility and size-dependent optical and electronic properties. Their applications, however, are always associated with the flow of nanoparticles inside a reservoir, i.e., a porous medium, wher...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/8/1151 |
| _version_ | 1798005268773076992 |
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| author | Zhongliang Hu Jin Zhao Hui Gao Ehsan Nourafkan Dongsheng Wen |
| author_facet | Zhongliang Hu Jin Zhao Hui Gao Ehsan Nourafkan Dongsheng Wen |
| author_sort | Zhongliang Hu |
| collection | DOAJ |
| description | Carbon nanoparticles (CNPs) are becoming promising candidates for oil/gas applications due to their biocompatibility and size-dependent optical and electronic properties. Their applications, however, are always associated with the flow of nanoparticles inside a reservoir, i.e., a porous medium, where insufficient studies have been conducted. In this work, we synthesized CNPs with two different size categories in 200 nm carbon balls (CNP-200) and 5 nm carbon dots (CNP-5), via a hydrothermal carbonation process. Comprehensive experiments in packed glass bead columns, as well as mathematical simulations, were conducted to understand the transport and deposition of CNPs under various ionic strength, particle sizes and concentration conditions. Our results show that the retention of CNP-200 is highly sensitive to the salinity and particle concentrations, while both of them are unaffected in the transport of small CNP-5. Supplemented with Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the clean bed filtration theory with blocking effect can successfully fit the experimental breakthrough curves of CNP-200. However, the high breakthrough ability for CNP-5 regardless of ionic strength change is in conflict with the energy interactions predicted by traditional DLVO theory. |
| first_indexed | 2024-04-11T12:36:42Z |
| format | Article |
| id | doaj.art-707d3698847c4246aa67d7bbbf7abeae |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:36:42Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-707d3698847c4246aa67d7bbbf7abeae2022-12-22T04:23:36ZengMDPI AGEnergies1996-10732017-08-01108115110.3390/en10081151en10081151Transport and Deposition of Carbon Nanoparticles in Saturated Porous MediaZhongliang Hu0Jin Zhao1Hui Gao2Ehsan Nourafkan3Dongsheng Wen4School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UKSchool of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UKSchool of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UKSchool of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UKSchool of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UKCarbon nanoparticles (CNPs) are becoming promising candidates for oil/gas applications due to their biocompatibility and size-dependent optical and electronic properties. Their applications, however, are always associated with the flow of nanoparticles inside a reservoir, i.e., a porous medium, where insufficient studies have been conducted. In this work, we synthesized CNPs with two different size categories in 200 nm carbon balls (CNP-200) and 5 nm carbon dots (CNP-5), via a hydrothermal carbonation process. Comprehensive experiments in packed glass bead columns, as well as mathematical simulations, were conducted to understand the transport and deposition of CNPs under various ionic strength, particle sizes and concentration conditions. Our results show that the retention of CNP-200 is highly sensitive to the salinity and particle concentrations, while both of them are unaffected in the transport of small CNP-5. Supplemented with Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the clean bed filtration theory with blocking effect can successfully fit the experimental breakthrough curves of CNP-200. However, the high breakthrough ability for CNP-5 regardless of ionic strength change is in conflict with the energy interactions predicted by traditional DLVO theory.https://www.mdpi.com/1996-1073/10/8/1151nanoparticle transportcarbon nanoparticlestransport mechanismDLVO theorysize effect |
| spellingShingle | Zhongliang Hu Jin Zhao Hui Gao Ehsan Nourafkan Dongsheng Wen Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media Energies nanoparticle transport carbon nanoparticles transport mechanism DLVO theory size effect |
| title | Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media |
| title_full | Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media |
| title_fullStr | Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media |
| title_full_unstemmed | Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media |
| title_short | Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media |
| title_sort | transport and deposition of carbon nanoparticles in saturated porous media |
| topic | nanoparticle transport carbon nanoparticles transport mechanism DLVO theory size effect |
| url | https://www.mdpi.com/1996-1073/10/8/1151 |
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