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Please use this identifier to cite or link to this item: 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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