Influence of physicochemical variables on polymer adsorption in porous media
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| Název: | Influence of physicochemical variables on polymer adsorption in porous media |
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| Autoři: | Julia Herrera-Quintero, Gustavo Maya-Toro, Kelly Colmenares-Vargas, Juliana Vidal-Prada, Dalje Barbosa-Trillos, Eduin Muñoz-Mazo |
| Zdroj: | Dyna, Vol 89, Iss 220 (2022) DYNA, Volume: 89, Issue: 220, Pages: 18-9, Published: 29 AUG 2022 |
| Informace o vydavateli: | Universidad Nacional de Colombia, 2022. |
| Rok vydání: | 2022 |
| Témata: | Technology, Mining engineering. Metallurgy, permeabilidad, TN1-997, adsorción, 02 engineering and technology, 01 natural sciences, HPAM, hidrólisis, hydrolysis, adsorption, permeability, 0204 chemical engineering, ATBS, 0105 earth and related environmental sciences |
| Popis: | HPAM type polymers and modifications with ATBS (Acrylamide Tertiary Butyl Sulfonated) units are used for EOR processes. Polymer adsorption is key to the success of these processes and is affected by variables such as molecular weight, hydrolysis, salinity, and permeability of the porous medium. Nevertheless, few studies corelate the dependence of these variables with adsorption. This work presents experimental results of the influence of variables on the dynamic adsorption of different polymers using sandstone type porous media. Modified polymers show adsorption less than 10 μg/g in low permeability and Sor condition. The adsorption of modified HPAM and HPAM polymers has an inverse relationship with molecular weight and permeability. At higher molecular weight, fewer pores are accessed due to their hydrodynamic radius and lower permeability, greater mechanical and hydrodynamic retention. Water salinity and hardness are directly related to adsorption, with less influence for modified HPAM. |
| Druh dokumentu: | Article |
| Popis souboru: | text/html |
| ISSN: | 2346-2183 0012-7353 |
| DOI: | 10.15446/dyna.v89n220.97440 |
| Přístupová URL adresa: | https://doaj.org/article/b02359e3e5314398a4cf6c42d14b6c7e http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0012-73532022000100009&lng=en&tlng=en |
| Rights: | CC BY NC ND |
| Přístupové číslo: | edsair.doi.dedup.....b381bd2351e2cd903c48a8568630326e |
| Databáze: | OpenAIRE |
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Nájsť tento článok vo Web of Science | Abstrakt: | HPAM type polymers and modifications with ATBS (Acrylamide Tertiary Butyl Sulfonated) units are used for EOR processes. Polymer adsorption is key to the success of these processes and is affected by variables such as molecular weight, hydrolysis, salinity, and permeability of the porous medium. Nevertheless, few studies corelate the dependence of these variables with adsorption. This work presents experimental results of the influence of variables on the dynamic adsorption of different polymers using sandstone type porous media. Modified polymers show adsorption less than 10 μg/g in low permeability and Sor condition. The adsorption of modified HPAM and HPAM polymers has an inverse relationship with molecular weight and permeability. At higher molecular weight, fewer pores are accessed due to their hydrodynamic radius and lower permeability, greater mechanical and hydrodynamic retention. Water salinity and hardness are directly related to adsorption, with less influence for modified HPAM. |
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| ISSN: | 23462183 00127353 |
| DOI: | 10.15446/dyna.v89n220.97440 |