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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2085
Title: Alleviation of Foam Formation in a Surfactant Driven Gas Hydrate System: Insights via a Detailed Morphological Study
Authors: Pandey G.
Bhattacharjee G.
Veluswamy, Hari Prakash
Kumar R.
Sangwai J.S.
Linga P.
Published in: ACS Applied Energy Materials
Abstract: Surfactants such as sodium dodecyl sulfate (SDS), which are used as kinetic hydrate promoters in various hydrate based technological applications, are facing a serious roadblock toward their commercial utilization as a result of the excessive amount of foam generation, particularly during hydrate dissociation. One of the approaches to alleviate this foam formation is the use of various antifoaming agents which may be employed in combination with surfactants. The possibility of using one such antifoaming agent, a silicone based polymeric surfactant, for hydrate based methane storage, has been explored in the current work through a detailed morphological study. Investigations on the morphology of hydrate formation and dissociation reveal the strong antifoaming activity of the silicone based compound and the optimal ratio in which it should be mixed with a surfactant, specifically SDS, in order to effectively alleviate unwanted foam formation. Further, kinetic data reveal that the generally observed kinetic promotion of methane hydrate formation in the presence of SDS is not affected by the addition of antifoam thus underlining the cause for the antifoam's free and possible use in various hydrate based technological applications. © 2018 American Chemical Society.
Citation: ACS Applied Energy Materials(2018), 1(12): 6899-6911
URI: https://doi.org/10.1021/acsaem.8b01307
http://repository.iitr.ac.in/handle/123456789/2085
Issue Date: 2018
Publisher: American Chemical Society
Keywords: crystal morphology
enhanced kinetics
foam suppression
gas hydrates
scalability
surfactant
ISSN: 25740962
Author Scopus IDs: 56673646500
56673926500
55603750900
53164128700
9276144800
57189447961
Author Affiliations: Pandey, G., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore, Gas Hydrate and Flow Assurance Laboratory, Petroleum Engineering Program, Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai, 600036, India
Bhattacharjee, G., Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, 600036, India
Veluswamy, H.P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
Kumar, R., Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, 600036, India
Sangwai, J.S., Gas Hydrate and Flow Assurance Laboratory, Petroleum Engineering Program, Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai, 600036, India
Linga, P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
Funding Details: The work was funded in part under the Energy Innovation Research Programme (EIRP, Award No. NRF2015EW-TEIRP002-002), administrated by the Energy Market Authority (EMA), Singapore. The EIRP is a competitive grant call initiative driven by the Energy Innovation Programme Office, and funded by the National Research Foundation (NRF), Singapore. G.P. acknowledges support from the joint NUS-IITM Ph.D. programme.
Corresponding Author: Linga, P.; Department of Chemical and Biomolecular Engineering, National University of SingaporeSingapore; email: chepl@nus.edu.sg
Appears in Collections:Journal Publications [CH]

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