Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue
Discharging water from oilfields has become one of the major environmental issues related to the oil industry. This work presents a study on the adsorption of oil onto nanoparticles of hydrophobic silica and silica nanoparticles functionalized with a petroleum vacuum residue (VR) at 2 and 4 wt% to r...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2014-03-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.32.2-3.197 |
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| author | Camilo A. Franco Maricelly Martínez Pedro Benjumea Edgar Patiño Farid B. Cortés |
| author_facet | Camilo A. Franco Maricelly Martínez Pedro Benjumea Edgar Patiño Farid B. Cortés |
| author_sort | Camilo A. Franco |
| collection | DOAJ |
| description | Discharging water from oilfields has become one of the major environmental issues related to the oil industry. This work presents a study on the adsorption of oil onto nanoparticles of hydrophobic silica and silica nanoparticles functionalized with a petroleum vacuum residue (VR) at 2 and 4 wt% to reduce the amount of oil in oil–brine and oil–water emulsions at different pH values (5, 7 and 9). The initial concentration of crude oil in water ranged from 500 to 1500 mg/l. The change in oil concentration after adsorption was determined using a UV–VIS spectrophotometer. Experimental data on the adsorption kinetics were fitted to pseudo-first-order and pseudo-second-order models, with better results being obtained for the latter. Results of the study showed 100% oil removal for all the systems studied and a better performance was achieved for oil-saltwater emulsions than the experiments performed using oil-saltwater emulsions. In addition, the adsorption equilibrium was achieved faster for the oil–water emulsion using the salty medium. Adsorption velocity was higher for neutral and basic systems compared with acid ones, and it was improved by increasing the amount of VR on silica surface. |
| format | Article |
| id | doaj-art-4167f60b378549e2aba4c53e1071e2d3 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2014-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-4167f60b378549e2aba4c53e1071e2d32025-01-02T02:58:21ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382014-03-013210.1260/0263-6174.32.2-3.197Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum ResidueCamilo A. Franco0Maricelly Martínez1Pedro Benjumea2Edgar Patiño3Farid B. Cortés4 Grupo de Yacimientos de Hidrocarburos, Escuela de Química y Petróleos, Facultad de Minas, Universidad Nacional de Colombia, Sede Medellín, Colombia Grupo de Yacimientos de Hidrocarburos, Escuela de Química y Petróleos, Facultad de Minas, Universidad Nacional de Colombia, Sede Medellín, Colombia Grupo de Yacimientos de Hidrocarburos, Escuela de Química y Petróleos, Facultad de Minas, Universidad Nacional de Colombia, Sede Medellín, Colombia Petroingeniería Regional de Antioquia, Petroraza S.A.S., Calle 80 Sur N° 47D-88, Sabaneta, Colombia Grupo de Yacimientos de Hidrocarburos, Escuela de Química y Petróleos, Facultad de Minas, Universidad Nacional de Colombia, Sede Medellín, ColombiaDischarging water from oilfields has become one of the major environmental issues related to the oil industry. This work presents a study on the adsorption of oil onto nanoparticles of hydrophobic silica and silica nanoparticles functionalized with a petroleum vacuum residue (VR) at 2 and 4 wt% to reduce the amount of oil in oil–brine and oil–water emulsions at different pH values (5, 7 and 9). The initial concentration of crude oil in water ranged from 500 to 1500 mg/l. The change in oil concentration after adsorption was determined using a UV–VIS spectrophotometer. Experimental data on the adsorption kinetics were fitted to pseudo-first-order and pseudo-second-order models, with better results being obtained for the latter. Results of the study showed 100% oil removal for all the systems studied and a better performance was achieved for oil-saltwater emulsions than the experiments performed using oil-saltwater emulsions. In addition, the adsorption equilibrium was achieved faster for the oil–water emulsion using the salty medium. Adsorption velocity was higher for neutral and basic systems compared with acid ones, and it was improved by increasing the amount of VR on silica surface.https://doi.org/10.1260/0263-6174.32.2-3.197 |
| spellingShingle | Camilo A. Franco Maricelly Martínez Pedro Benjumea Edgar Patiño Farid B. Cortés Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue Adsorption Science & Technology |
| title | Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue |
| title_full | Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue |
| title_fullStr | Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue |
| title_full_unstemmed | Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue |
| title_short | Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue |
| title_sort | water remediation based on oil adsorption using nanosilicates functionalized with a petroleum vacuum residue |
| url | https://doi.org/10.1260/0263-6174.32.2-3.197 |
| work_keys_str_mv | AT camiloafranco waterremediationbasedonoiladsorptionusingnanosilicatesfunctionalizedwithapetroleumvacuumresidue AT maricellymartinez waterremediationbasedonoiladsorptionusingnanosilicatesfunctionalizedwithapetroleumvacuumresidue AT pedrobenjumea waterremediationbasedonoiladsorptionusingnanosilicatesfunctionalizedwithapetroleumvacuumresidue AT edgarpatino waterremediationbasedonoiladsorptionusingnanosilicatesfunctionalizedwithapetroleumvacuumresidue AT faridbcortes waterremediationbasedonoiladsorptionusingnanosilicatesfunctionalizedwithapetroleumvacuumresidue |