Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates

This experimental work evaluates the dual functional (thermodynamic and kinetic) behaviour of quaternary ammonium salt namely tetramethyl ammonium chloride (TMACl) for both methane (CH4) and carbon dioxide (CO2) hydrates. The Hydrate Liquid Vapour Equilibrium (HLwVE) data for CH4 and CO2 are evaluat...

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Main Authors: Khan, M.S., Lal, B., Keong, L.K., Ahmed, I.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.22184 /
Published: 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053031061&doi=10.1016%2fj.fuel.2018.09.001&partnerID=40&md5=0e5d471627cc1777c867faf54c761a69
http://eprints.utp.edu.my/22184/
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spelling utp-eprints.221842019-03-27T01:41:59Z Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates Khan, M.S. Lal, B. Keong, L.K. Ahmed, I. This experimental work evaluates the dual functional (thermodynamic and kinetic) behaviour of quaternary ammonium salt namely tetramethyl ammonium chloride (TMACl) for both methane (CH4) and carbon dioxide (CO2) hydrates. The Hydrate Liquid Vapour Equilibrium (HLwVE) data for CH4 and CO2 are evaluated in the presence and absence of aqueous TMACl solutions (1, 5 and 10 wt) through T-cycle method at different temperature and pressure conditions. The inhibition impact, i.e., average suppression temperature (�Ŧ) and Hydrate dissociation enthalpies (�Hdiss) are also reported for the considered systems for both gases. The study is further extended to evaluate the formation kinetics of CH4 and CO2 hydrated in the presence and absence of aqueous TMACl systems. The impact of TMACl is reported via the induction time, the initial formation rate and a gas uptake at different subcooling temperatures for both gases. Furthermore, the kinetic inhibition performance of TMACl is also assessed via the relative inhibition performance (RIP) compared with literature systems for both CH4 and CO2 hydrates. Additionally, an electrolyte based thermodynamic model proposed by Dickens and Quinby-Hunt, (1997) is applied to predict the HLwVE temperatures of both gases (CH4 and CO2) in the presence of TMACl. The obtained thermodynamic and kinetic results indicate that TMACl efficiently acts as a potential dual functional hydrate inhibitor for CH4 and CO2 gases. Therefore, the outcome of its efficacy, this study will envision the use of TMACl for both CH4 and CO2 hydrate systems and can potentially be applied in offshore flow assurance strategies. © 2018 Elsevier Ltd 2019 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053031061&doi=10.1016%2fj.fuel.2018.09.001&partnerID=40&md5=0e5d471627cc1777c867faf54c761a69 Khan, M.S. and Lal, B. and Keong, L.K. and Ahmed, I. (2019) Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates. Fuel, 236 . pp. 251-263. http://eprints.utp.edu.my/22184/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description This experimental work evaluates the dual functional (thermodynamic and kinetic) behaviour of quaternary ammonium salt namely tetramethyl ammonium chloride (TMACl) for both methane (CH4) and carbon dioxide (CO2) hydrates. The Hydrate Liquid Vapour Equilibrium (HLwVE) data for CH4 and CO2 are evaluated in the presence and absence of aqueous TMACl solutions (1, 5 and 10 wt) through T-cycle method at different temperature and pressure conditions. The inhibition impact, i.e., average suppression temperature (�Ŧ) and Hydrate dissociation enthalpies (�Hdiss) are also reported for the considered systems for both gases. The study is further extended to evaluate the formation kinetics of CH4 and CO2 hydrated in the presence and absence of aqueous TMACl systems. The impact of TMACl is reported via the induction time, the initial formation rate and a gas uptake at different subcooling temperatures for both gases. Furthermore, the kinetic inhibition performance of TMACl is also assessed via the relative inhibition performance (RIP) compared with literature systems for both CH4 and CO2 hydrates. Additionally, an electrolyte based thermodynamic model proposed by Dickens and Quinby-Hunt, (1997) is applied to predict the HLwVE temperatures of both gases (CH4 and CO2) in the presence of TMACl. The obtained thermodynamic and kinetic results indicate that TMACl efficiently acts as a potential dual functional hydrate inhibitor for CH4 and CO2 gases. Therefore, the outcome of its efficacy, this study will envision the use of TMACl for both CH4 and CO2 hydrate systems and can potentially be applied in offshore flow assurance strategies. © 2018 Elsevier Ltd
format Article
author Khan, M.S.
Lal, B.
Keong, L.K.
Ahmed, I.
spellingShingle Khan, M.S.
Lal, B.
Keong, L.K.
Ahmed, I.
Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
author_sort Khan, M.S.
title Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
title_short Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
title_full Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
title_fullStr Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
title_full_unstemmed Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
title_sort tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053031061&doi=10.1016%2fj.fuel.2018.09.001&partnerID=40&md5=0e5d471627cc1777c867faf54c761a69
http://eprints.utp.edu.my/22184/
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score 11.62408

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