Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms
The present work has main target to study the effect of additives molecular weight and composition on the flow characteristics of wax crude oil at low temperature below pour point temperature. In this respect, maleic anhydride ester-co-vinyl acetate copolymers with varied monomers feed ratios and di...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/683109 |
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| author | Ayman M. Atta Rasha A. El-Ghazawy Fatma A. Morsy Ali M. S. Hebishy Abdullah Elmorsy |
| author_facet | Ayman M. Atta Rasha A. El-Ghazawy Fatma A. Morsy Ali M. S. Hebishy Abdullah Elmorsy |
| author_sort | Ayman M. Atta |
| collection | DOAJ |
| description | The present work has main target to study the effect of additives molecular weight and composition on the flow characteristics of wax crude oil at low temperature below pour point temperature. In this respect, maleic anhydride ester-co-vinyl acetate copolymers with varied monomers feed ratios and different alkyl ester lengths, namely, dodecyl, stearyl, and behenyl alkyl chains, were prepared. These polymeric materials were characterized by FTIR, 1HNMR, and GPC. The performance of these additives as pour point depressants and flow improver for Egyptian waxy crude oil was evaluated through measurements of pour point and rheological parameters (viscosity and yield stress). It was observed that stearyl maleate-vinyl acetate copolymer with 1 : 2 feed ratio shows the best efficiency as pour point depressant even at low concentration while octadecyl maleate-vinyl acetate copolymers with 2 : 1 feed ratio are effective as flow improver. |
| format | Article |
| id | doaj-art-d62354f7844541a49c463d062faa13bf |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-d62354f7844541a49c463d062faa13bf2025-02-03T05:58:52ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/683109683109Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization MechanismsAyman M. Atta0Rasha A. El-Ghazawy1Fatma A. Morsy2Ali M. S. Hebishy3Abdullah Elmorsy4Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaPetroleum Application Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, EgyptChemistry Department, Faculty of Science, Helwan University, Helwan, EgyptChemistry Department, Faculty of Science, Helwan University, Helwan, EgyptChemistry Department, Faculty of Science, Helwan University, Helwan, EgyptThe present work has main target to study the effect of additives molecular weight and composition on the flow characteristics of wax crude oil at low temperature below pour point temperature. In this respect, maleic anhydride ester-co-vinyl acetate copolymers with varied monomers feed ratios and different alkyl ester lengths, namely, dodecyl, stearyl, and behenyl alkyl chains, were prepared. These polymeric materials were characterized by FTIR, 1HNMR, and GPC. The performance of these additives as pour point depressants and flow improver for Egyptian waxy crude oil was evaluated through measurements of pour point and rheological parameters (viscosity and yield stress). It was observed that stearyl maleate-vinyl acetate copolymer with 1 : 2 feed ratio shows the best efficiency as pour point depressant even at low concentration while octadecyl maleate-vinyl acetate copolymers with 2 : 1 feed ratio are effective as flow improver.http://dx.doi.org/10.1155/2015/683109 |
| spellingShingle | Ayman M. Atta Rasha A. El-Ghazawy Fatma A. Morsy Ali M. S. Hebishy Abdullah Elmorsy Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms Journal of Chemistry |
| title | Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms |
| title_full | Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms |
| title_fullStr | Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms |
| title_full_unstemmed | Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms |
| title_short | Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms |
| title_sort | adsorption of polymeric additives based on vinyl acetate copolymers as wax dispersant and its relevance to polymer crystallization mechanisms |
| url | http://dx.doi.org/10.1155/2015/683109 |
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