Effect of three representative surfactants on methane hydrate formation rate and induction time
The effects of three types of surfactants on methane hydrate formation process were investigated. Three different classes of surfactants involving anionic (sodium dodecyl sulfonate), cationic (hexadecyl trimethyl ammonium bromide) and non-ionic (poly oxy ethylene (40) octyl phenyl ether) have been u...
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Egyptian Petroleum Research Institute
2017-06-01
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| Series: | Egyptian Journal of Petroleum |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110062116300058 |
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| author | Mostafa keshavarz Moraveji Ahmadreza Ghaffarkhah Arash Sadeghi |
| author_facet | Mostafa keshavarz Moraveji Ahmadreza Ghaffarkhah Arash Sadeghi |
| author_sort | Mostafa keshavarz Moraveji |
| collection | DOAJ |
| description | The effects of three types of surfactants on methane hydrate formation process were investigated. Three different classes of surfactants involving anionic (sodium dodecyl sulfonate), cationic (hexadecyl trimethyl ammonium bromide) and non-ionic (poly oxy ethylene (40) octyl phenyl ether) have been used. Thermodynamics of hydrate formation, formation rate, kinetic constants and induction time in the presence of surfactants with various concentrations were analyzed. Critical micelle concentrations (CMCs) of these surfactants in water were determined by induction time measurements in various concentrations under methane hydrate formation conditions. The critical micelle concentration (CMC) at the methane hydrate formation conditions for SDS, HTABr and TritonX-405 solutions were obtained at 450, 380 and 950 ppm, respectively. The experimental results indicated that hydrate formation rate increased with the use of surfactants for all concentrations and induction time decreased. It was found that for surfactants, CMC at hydrate formation conditions was less than CMC at ambient conditions. |
| format | Article |
| id | doaj-art-7b32210f913a4e30a5ab8ca801a57ebb |
| institution | DOAJ |
| issn | 1110-0621 |
| language | English |
| publishDate | 2017-06-01 |
| publisher | Egyptian Petroleum Research Institute |
| record_format | Article |
| series | Egyptian Journal of Petroleum |
| spelling | doaj-art-7b32210f913a4e30a5ab8ca801a57ebb2025-08-20T03:06:52ZengEgyptian Petroleum Research InstituteEgyptian Journal of Petroleum1110-06212017-06-0126233133910.1016/j.ejpe.2016.05.007Effect of three representative surfactants on methane hydrate formation rate and induction timeMostafa keshavarz Moraveji0Ahmadreza Ghaffarkhah1Arash Sadeghi2Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Avenue, Tehran 15875-4413, IranDepartment of Petroleum, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Avenue, Tehran 15875-4413, IranDepartment of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Avenue, Tehran 15875-4413, IranThe effects of three types of surfactants on methane hydrate formation process were investigated. Three different classes of surfactants involving anionic (sodium dodecyl sulfonate), cationic (hexadecyl trimethyl ammonium bromide) and non-ionic (poly oxy ethylene (40) octyl phenyl ether) have been used. Thermodynamics of hydrate formation, formation rate, kinetic constants and induction time in the presence of surfactants with various concentrations were analyzed. Critical micelle concentrations (CMCs) of these surfactants in water were determined by induction time measurements in various concentrations under methane hydrate formation conditions. The critical micelle concentration (CMC) at the methane hydrate formation conditions for SDS, HTABr and TritonX-405 solutions were obtained at 450, 380 and 950 ppm, respectively. The experimental results indicated that hydrate formation rate increased with the use of surfactants for all concentrations and induction time decreased. It was found that for surfactants, CMC at hydrate formation conditions was less than CMC at ambient conditions.http://www.sciencedirect.com/science/article/pii/S1110062116300058Methane hydrateSurfactantFormation rateKineticInduction time |
| spellingShingle | Mostafa keshavarz Moraveji Ahmadreza Ghaffarkhah Arash Sadeghi Effect of three representative surfactants on methane hydrate formation rate and induction time Egyptian Journal of Petroleum Methane hydrate Surfactant Formation rate Kinetic Induction time |
| title | Effect of three representative surfactants on methane hydrate formation rate and induction time |
| title_full | Effect of three representative surfactants on methane hydrate formation rate and induction time |
| title_fullStr | Effect of three representative surfactants on methane hydrate formation rate and induction time |
| title_full_unstemmed | Effect of three representative surfactants on methane hydrate formation rate and induction time |
| title_short | Effect of three representative surfactants on methane hydrate formation rate and induction time |
| title_sort | effect of three representative surfactants on methane hydrate formation rate and induction time |
| topic | Methane hydrate Surfactant Formation rate Kinetic Induction time |
| url | http://www.sciencedirect.com/science/article/pii/S1110062116300058 |
| work_keys_str_mv | AT mostafakeshavarzmoraveji effectofthreerepresentativesurfactantsonmethanehydrateformationrateandinductiontime AT ahmadrezaghaffarkhah effectofthreerepresentativesurfactantsonmethanehydrateformationrateandinductiontime AT arashsadeghi effectofthreerepresentativesurfactantsonmethanehydrateformationrateandinductiontime |