Nucleation rates of carbon dioxide hydrate

Vincent W.S. Lim; Mark T.J. Barwood; Peter J. Metaxas; Michael L. Johns; Zachary M. Aman; Eric F. May

doi:10.1016/j.cej.2022.136359

Nucleation rates of carbon dioxide hydrate

Vincent W.S. Lim, Mark T.J. Barwood, Peter J. Metaxas, Michael L. Johns, Zachary M. Aman, Eric F. May

Research output: Contribution to journal › Article › peer-review

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Abstract

Nucleation rates of carbon dioxide hydrate were extracted via the measurement of induction time distributions in a set of stirred, stainless steel, high-pressure cells. These nucleation rates ranged from (1.71 to 20.6) × 10^-4 s⁻¹ at subcoolings between (1.2 and 4.2) K, higher than those measured under the same conditions for methane or structure II hydrates. Formation probability was well-described by the mononuclear mechanism from Classical Nucleation Theory. Analysis under this framework reveals that the comparatively faster nucleation rates observed for CO₂ hydrates can be attributed to lower nucleation work rather than guest solubility in the liquid aqueous phase.

Original language	English
Article number	136359
Journal	Chemical Engineering Journal
Volume	443
DOIs	https://doi.org/10.1016/j.cej.2022.136359
Publication status	Published - 1 Sept 2022

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10.1016/j.cej.2022.136359

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title = "Nucleation rates of carbon dioxide hydrate",

abstract = "Nucleation rates of carbon dioxide hydrate were extracted via the measurement of induction time distributions in a set of stirred, stainless steel, high-pressure cells. These nucleation rates ranged from (1.71 to 20.6) × 10-4 s−1 at subcoolings between (1.2 and 4.2) K, higher than those measured under the same conditions for methane or structure II hydrates. Formation probability was well-described by the mononuclear mechanism from Classical Nucleation Theory. Analysis under this framework reveals that the comparatively faster nucleation rates observed for CO2 hydrates can be attributed to lower nucleation work rather than guest solubility in the liquid aqueous phase.",

keywords = "Carbon Capture and Storage, Carbon dioxide hydrate, Growth, Induction Time, Nucleation",

author = "Lim, {Vincent W.S.} and Barwood, {Mark T.J.} and Metaxas, {Peter J.} and Johns, {Michael L.} and Aman, {Zachary M.} and May, {Eric F.}",

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T1 - Nucleation rates of carbon dioxide hydrate

AU - Lim, Vincent W.S.

AU - Barwood, Mark T.J.

AU - Metaxas, Peter J.

AU - Johns, Michael L.

AU - Aman, Zachary M.

AU - May, Eric F.

PY - 2022/9/1

Y1 - 2022/9/1

N2 - Nucleation rates of carbon dioxide hydrate were extracted via the measurement of induction time distributions in a set of stirred, stainless steel, high-pressure cells. These nucleation rates ranged from (1.71 to 20.6) × 10-4 s−1 at subcoolings between (1.2 and 4.2) K, higher than those measured under the same conditions for methane or structure II hydrates. Formation probability was well-described by the mononuclear mechanism from Classical Nucleation Theory. Analysis under this framework reveals that the comparatively faster nucleation rates observed for CO2 hydrates can be attributed to lower nucleation work rather than guest solubility in the liquid aqueous phase.

AB - Nucleation rates of carbon dioxide hydrate were extracted via the measurement of induction time distributions in a set of stirred, stainless steel, high-pressure cells. These nucleation rates ranged from (1.71 to 20.6) × 10-4 s−1 at subcoolings between (1.2 and 4.2) K, higher than those measured under the same conditions for methane or structure II hydrates. Formation probability was well-described by the mononuclear mechanism from Classical Nucleation Theory. Analysis under this framework reveals that the comparatively faster nucleation rates observed for CO2 hydrates can be attributed to lower nucleation work rather than guest solubility in the liquid aqueous phase.

KW - Carbon Capture and Storage

KW - Carbon dioxide hydrate

KW - Growth

KW - Induction Time

KW - Nucleation

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DO - 10.1016/j.cej.2022.136359

M3 - Article

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SN - 1385-8947

VL - 443

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 136359

ER -

Nucleation rates of carbon dioxide hydrate

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