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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2102
Title: Macroscopic kinetics of hydrate formation of mixed hydrates of hydrogen/tetrahydrofuran for hydrogen storage
Authors: Veluswamy H.P.
Linga P.
Published in: International Journal of Hydrogen Energy
Abstract: Hydrogen/Tetrahydrofuran mixed hydrate formation studies were conducted in a stirred tank reactor. Hydrate formation kinetics at driving forces of 2 MPa, 5 MPa and 7 MPa were studied. Tetrahydrofuran (THF) concentration was varied between 1 mol% and 5 mol% and its effect on hydrate formation kinetics was investigated. With an increase in the driving force there was an increase in gas uptake till super saturation. However, the increased driving force had little effect on the reduction of induction time even at high promoter (THF) concentration. 5 mol% THF solutions behave distinctly exhibiting an increased hydrate growth compared to low promoter concentrations due to the occurrence of multiple nucleation events (observed based on temperature spikes and gas uptake). Rate of hydrate formation increased with an increase in driving force for a given concentration of THF promoter. Water conversion to hydrates in the range of 2.8-10.8% was achieved for all the experiments. Addition of Sodium Dodecyl Sulphate (SDS) surfactant had no effect in improving the kinetics of mixed hydrogen/THF hydrates. This study highlights the kinetic challenges that need to be overcome in storing hydrogen as clathrate hydrates. © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Citation: International Journal of Hydrogen Energy(2013), 38(11): 4587-4596
URI: https://doi.org/10.1016/j.ijhydene.2013.01.123
http://repository.iitr.ac.in/handle/123456789/2102
Issue Date: 2013
Keywords: Formation kinetics
Gas hydrates
Hydrogen hydrates
Hydrogen storage
Stirred tank reactor
ISSN: 3603199
Author Scopus IDs: 55603750900
57189447961
Author Affiliations: Veluswamy, H.P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117 576, Singapore
Linga, P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117 576, Singapore
Funding Details: The financial support from the Ministry of Education's AcRF Tier 1 ( R-279-000-317-133 ) is greatly appreciated. Appendix A
Corresponding Author: Linga, P.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117 576, Singapore; email: chepl@nus.edu.sg
Appears in Collections:Journal Publications [CH]

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