Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide
Abstract Hydrate technology promoted the development of natural gas industry. Nanoparticles showed a broad prospect for hydrate technology because of their excellent mass and heat transfer characteristics. At an experimental temperature of 275.15 K and pressure of 5 MPa, silica nanoparticles and cet...
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crwiley:10.1002/slct.202200215 2024-06-02T08:10:24+00:00 Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide Zhai, Jiaqi Shang, Liyan Zhou, Li Yao, Xiuqing Bai, Junwen Lv, Zhenbo 2022 http://dx.doi.org/10.1002/slct.202200215 https://onlinelibrary.wiley.com/doi/pdf/10.1002/slct.202200215 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/slct.202200215 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor ChemistrySelect volume 7, issue 19 ISSN 2365-6549 2365-6549 journal-article 2022 crwiley https://doi.org/10.1002/slct.202200215 2024-05-03T10:56:37Z Abstract Hydrate technology promoted the development of natural gas industry. Nanoparticles showed a broad prospect for hydrate technology because of their excellent mass and heat transfer characteristics. At an experimental temperature of 275.15 K and pressure of 5 MPa, silica nanoparticles and cetyltrimethylammonium bromide (CTAB) were used to investigate the characteristics (pressure drop, gas storage capacity, and formation rate). The experimental results showed that the higher the concentration of silica nanofluid, the shorter the induction time. Among the four silica nanoparticles concentration (0.1, 0.2, 0.3, and 0.5 wt%) tested in this work, the concentration of 0.3 wt% was optimal for the enhancement of CH 4 hydrate formation. In the complex system composed of silica nanoparticles and CTAB, the surface of silica nanoparticles was positively charged by hydrolysis. The cationic active groups ionized by surfactants were aggregated to the surface of the particles under the Coulomb force. Methane molecules were gathered to hydrophobic groups by non‐polar adsorption, which was more conducive to hydrate formation. Compared to silica nanofluid, the total time for hydrate formation decreased by 66.2 %. Article in Journal/Newspaper Methane hydrate Wiley Online Library ChemistrySelect 7 19 |
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English |
description |
Abstract Hydrate technology promoted the development of natural gas industry. Nanoparticles showed a broad prospect for hydrate technology because of their excellent mass and heat transfer characteristics. At an experimental temperature of 275.15 K and pressure of 5 MPa, silica nanoparticles and cetyltrimethylammonium bromide (CTAB) were used to investigate the characteristics (pressure drop, gas storage capacity, and formation rate). The experimental results showed that the higher the concentration of silica nanofluid, the shorter the induction time. Among the four silica nanoparticles concentration (0.1, 0.2, 0.3, and 0.5 wt%) tested in this work, the concentration of 0.3 wt% was optimal for the enhancement of CH 4 hydrate formation. In the complex system composed of silica nanoparticles and CTAB, the surface of silica nanoparticles was positively charged by hydrolysis. The cationic active groups ionized by surfactants were aggregated to the surface of the particles under the Coulomb force. Methane molecules were gathered to hydrophobic groups by non‐polar adsorption, which was more conducive to hydrate formation. Compared to silica nanofluid, the total time for hydrate formation decreased by 66.2 %. |
format |
Article in Journal/Newspaper |
author |
Zhai, Jiaqi Shang, Liyan Zhou, Li Yao, Xiuqing Bai, Junwen Lv, Zhenbo |
spellingShingle |
Zhai, Jiaqi Shang, Liyan Zhou, Li Yao, Xiuqing Bai, Junwen Lv, Zhenbo Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
author_facet |
Zhai, Jiaqi Shang, Liyan Zhou, Li Yao, Xiuqing Bai, Junwen Lv, Zhenbo |
author_sort |
Zhai, Jiaqi |
title |
Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
title_short |
Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
title_full |
Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
title_fullStr |
Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
title_full_unstemmed |
Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide |
title_sort |
kinetics of methane hydrate formation in the presence of silica nanoparticles and cetyltrimethylammonium bromide |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/slct.202200215 https://onlinelibrary.wiley.com/doi/pdf/10.1002/slct.202200215 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/slct.202200215 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
ChemistrySelect volume 7, issue 19 ISSN 2365-6549 2365-6549 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/slct.202200215 |
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