Experimental and modeling study on controlling factor of methane hydrate formation in silica gels
In order to study the mechanism of methane hydrate formation in porous media, the formation experiments of methane hydrate in porous media at the constant pressure were performed in the temperature range of 274.15–276.15 K and the pressure range of 5–8 MPa. The silica gels with the average pore diam...
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ftrepec:oai:RePEc:eee:appene:v:225:y:2018:i:c:p:827-834 2024-04-14T08:14:47+00:00 Experimental and modeling study on controlling factor of methane hydrate formation in silica gels Zhang, Yu Li, Xiao-Sen Chen, Zhao-Yang Xia, Zhi-Ming Wang, Yi Li, Gang http://www.sciencedirect.com/science/article/pii/S0306261918307694 unknown http://www.sciencedirect.com/science/article/pii/S0306261918307694 article ftrepec 2024-03-19T10:28:05Z In order to study the mechanism of methane hydrate formation in porous media, the formation experiments of methane hydrate in porous media at the constant pressure were performed in the temperature range of 274.15–276.15 K and the pressure range of 5–8 MPa. The silica gels with the average pore diameters of 129.5, 179.6, and 332 Å were used as the porous media for the experiments. The experimental results indicate that the final gas consumption increases with the increase of the formation pressure and the decrease of the formation temperature. Based on the shrinking core model, the reaction-controlled kinetic model and the diffusion-controlled kinetic model for hydrate formation in silica gels were built, respectively. The reaction-controlled kinetic model well fits the kinetic data in 129.5 Å and 179.6 Å silica gels, and the diffusion-controlled model well fits the kinetic data in 332 Å silica gels with a relatively high regression coefficient (R2 > 0.99). The formation rate of the methane hydrate is controlled by the gas diffusion process in 129.5 Å and 179.6 Å silica gels, and is controlled by the reaction process in 332 Å silica gels. Methane hydrate; Formation; Silica gels; Pore size; Controlling factor; Article in Journal/Newspaper Methane hydrate RePEc (Research Papers in Economics) |
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Open Polar |
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RePEc (Research Papers in Economics) |
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ftrepec |
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unknown |
description |
In order to study the mechanism of methane hydrate formation in porous media, the formation experiments of methane hydrate in porous media at the constant pressure were performed in the temperature range of 274.15–276.15 K and the pressure range of 5–8 MPa. The silica gels with the average pore diameters of 129.5, 179.6, and 332 Å were used as the porous media for the experiments. The experimental results indicate that the final gas consumption increases with the increase of the formation pressure and the decrease of the formation temperature. Based on the shrinking core model, the reaction-controlled kinetic model and the diffusion-controlled kinetic model for hydrate formation in silica gels were built, respectively. The reaction-controlled kinetic model well fits the kinetic data in 129.5 Å and 179.6 Å silica gels, and the diffusion-controlled model well fits the kinetic data in 332 Å silica gels with a relatively high regression coefficient (R2 > 0.99). The formation rate of the methane hydrate is controlled by the gas diffusion process in 129.5 Å and 179.6 Å silica gels, and is controlled by the reaction process in 332 Å silica gels. Methane hydrate; Formation; Silica gels; Pore size; Controlling factor; |
format |
Article in Journal/Newspaper |
author |
Zhang, Yu Li, Xiao-Sen Chen, Zhao-Yang Xia, Zhi-Ming Wang, Yi Li, Gang |
spellingShingle |
Zhang, Yu Li, Xiao-Sen Chen, Zhao-Yang Xia, Zhi-Ming Wang, Yi Li, Gang Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
author_facet |
Zhang, Yu Li, Xiao-Sen Chen, Zhao-Yang Xia, Zhi-Ming Wang, Yi Li, Gang |
author_sort |
Zhang, Yu |
title |
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
title_short |
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
title_full |
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
title_fullStr |
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
title_full_unstemmed |
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
title_sort |
experimental and modeling study on controlling factor of methane hydrate formation in silica gels |
url |
http://www.sciencedirect.com/science/article/pii/S0306261918307694 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0306261918307694 |
_version_ |
1796313012184809472 |