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Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates

This study evaluates the kinetic hydrate inhibition (KHI) performance of four quaternary ammonium hydroxides (QAH) on mixed CH4 + CO2 hydrate systems. The studied QAHs are; tetraethylammonium hydroxide (TEAOH), tetrabutylammonium hydroxide (TBAOH), tetramethy-lammonium hydroxide (TMAOH), and tetrapr...

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Main Authors: Khan, M.S., Bavoh, C.B., Foo, K.S., Shariff, A.M., Kassim, Z., Othman, N.A.B., Lal, B., Ahmed, I., Rahman, M.A., Gomari, S.R.
Format: Article
Published: MDPI AG 2021
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099896140&doi=10.3390%2fmolecules26020275&partnerID=40&md5=beca252a0748732802ade7448c463eea
http://eprints.utp.edu.my/32392/
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spelling my.utp.eprints.323922022-03-29T02:01:38Z Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates Khan, M.S. Bavoh, C.B. Foo, K.S. Shariff, A.M. Kassim, Z. Othman, N.A.B. Lal, B. Ahmed, I. Rahman, M.A. Gomari, S.R. This study evaluates the kinetic hydrate inhibition (KHI) performance of four quaternary ammonium hydroxides (QAH) on mixed CH4 + CO2 hydrate systems. The studied QAHs are; tetraethylammonium hydroxide (TEAOH), tetrabutylammonium hydroxide (TBAOH), tetramethy-lammonium hydroxide (TMAOH), and tetrapropylammonium hydroxide (TPrAOH). The test was performed in a high-pressure hydrate reactor at temperatures of 274.0 K and 277.0 K, and a concentration of 1 wt. using the isochoric cooling method. The kinetics results suggest that all the QAHs potentially delayed mixed CH4 + CO2 hydrates formation due to their steric hindrance abilities. The presence of QAHs reduced hydrate formation risk than the conventional hydrate inhibitor, PVP, at higher subcooling conditions. The findings indicate that increasing QAHs alkyl chain lengths increase their kinetic hydrate inhibition efficacies due to better surface adsorption abilities. QAHs with longer chain lengths have lesser amounts of solute particles to prevent hydrate formation. The outcomes of this study contribute significantly to current efforts to control gas hydrate formation in offshore petroleum pipelines. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. MDPI AG 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099896140&doi=10.3390%2fmolecules26020275&partnerID=40&md5=beca252a0748732802ade7448c463eea Khan, M.S. and Bavoh, C.B. and Foo, K.S. and Shariff, A.M. and Kassim, Z. and Othman, N.A.B. and Lal, B. and Ahmed, I. and Rahman, M.A. and Gomari, S.R. (2021) Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates. Molecules, 26 (2). http://eprints.utp.edu.my/32392/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description This study evaluates the kinetic hydrate inhibition (KHI) performance of four quaternary ammonium hydroxides (QAH) on mixed CH4 + CO2 hydrate systems. The studied QAHs are; tetraethylammonium hydroxide (TEAOH), tetrabutylammonium hydroxide (TBAOH), tetramethy-lammonium hydroxide (TMAOH), and tetrapropylammonium hydroxide (TPrAOH). The test was performed in a high-pressure hydrate reactor at temperatures of 274.0 K and 277.0 K, and a concentration of 1 wt. using the isochoric cooling method. The kinetics results suggest that all the QAHs potentially delayed mixed CH4 + CO2 hydrates formation due to their steric hindrance abilities. The presence of QAHs reduced hydrate formation risk than the conventional hydrate inhibitor, PVP, at higher subcooling conditions. The findings indicate that increasing QAHs alkyl chain lengths increase their kinetic hydrate inhibition efficacies due to better surface adsorption abilities. QAHs with longer chain lengths have lesser amounts of solute particles to prevent hydrate formation. The outcomes of this study contribute significantly to current efforts to control gas hydrate formation in offshore petroleum pipelines. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Khan, M.S.
Bavoh, C.B.
Foo, K.S.
Shariff, A.M.
Kassim, Z.
Othman, N.A.B.
Lal, B.
Ahmed, I.
Rahman, M.A.
Gomari, S.R.
spellingShingle Khan, M.S.
Bavoh, C.B.
Foo, K.S.
Shariff, A.M.
Kassim, Z.
Othman, N.A.B.
Lal, B.
Ahmed, I.
Rahman, M.A.
Gomari, S.R.
Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
author_facet Khan, M.S.
Bavoh, C.B.
Foo, K.S.
Shariff, A.M.
Kassim, Z.
Othman, N.A.B.
Lal, B.
Ahmed, I.
Rahman, M.A.
Gomari, S.R.
author_sort Khan, M.S.
title Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
title_short Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
title_full Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
title_fullStr Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
title_full_unstemmed Kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
title_sort kinetic behavior of quaternary ammonium hydroxides in mixed methane and carbon dioxide hydrates
publisher MDPI AG
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099896140&doi=10.3390%2fmolecules26020275&partnerID=40&md5=beca252a0748732802ade7448c463eea
http://eprints.utp.edu.my/32392/
_version_ 1738657380829233152
score 13.211869

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