http://repository.iitr.ac.in/handle/123456789/2097| Title: | Surfactant effect on the kinetics of mixed hydrogen/propane hydrate formation for hydrogen storage as clathrates |
| Authors: | Veluswamy, Hari Prakash Chen J.Y. Linga P. |
| Published in: | Chemical Engineering Science |
| Abstract: | Effect of sodium dodecyl sulfate (SDS) surfactant on the kinetics of mixed hydrogen/propane hydrates was studied extensively in a stirred tank reactor. SDS concentration was varied in the range of 5-1000. ppm and its effect on the kinetics of the mixed hydrogen hydrate formation was observed. Anionic SDS surfactant drastically improved the rate of mixed hydrate formation due to which the hydrate formation time reduced significantly. The time required for 90% completion of the hydrate formation reduced from 334.2 (±27.7). min (water without any surfactant) to just 25.5 (±1.8). min in presence of SDS surfactant at concentrations greater than or equal to 100. ppm. The presence of SDS resulted in a distinct two step hydrate growth mechanism. Hydrate growth behavior similar to control (water) experiments was observed from nucleation till certain time (deflection time) beyond which the surfactant exhibited its property and increased the rate of hydrate formation resulting in faster completion of mixed hydrogen hydrate formation. © 2014 Elsevier Ltd. |
| Citation: | Chemical Engineering Science(2015), 126(): 488-499 |
| URI: | https://doi.org/10.1016/j.ces.2014.12.052 http://repository.iitr.ac.in/handle/123456789/2097 |
| Issue Date: | 2015 |
| Publisher: | Elsevier Ltd |
| Keywords: | Gas hydrates Hydrogen hydrate Hydrogen storage Kinetics Surfactant |
| ISSN: | 92509 |
| Author Scopus IDs: | 55603750900 56486292300 57189447961 |
| Author Affiliations: | Veluswamy, H.P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore Chen, J.Y., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore Linga, P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore |
| Funding Details: | The financial support from the Ministry of Education’s AcRF Tier 1 ( R-279-000-386-112 ) is greatly appreciated. Appendix A |
| Corresponding Author: | Linga, P.; Department of Chemical and Biomolecular Engineering, National University of SingaporeSingapore; email: praveen.linga@nus.edu.sg |
| Appears in Collections: | Journal Publications [CH] |
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