Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes

The hydrate formation behaviors are significantly affected by the grain size of the sediments. To more deeply understand the methane hydrate formation kinetics in a wide range of grain sizes of the sediments, the formation experiments of methane hydrate in different partially water-saturated porous...

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Published in:Energy & Fuels
Main Authors: Zhang, Yu, Zhang, Lei, Zhu, Chuan-Yu, Xu, Li-Xin, Li, Xiao-Sen, Chen, Zhao-Yang
Format: Report
Language:English
Published: AMER CHEMICAL SOC 2021
Subjects:
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Online Access:http://ir.giec.ac.cn/handle/344007/35815
https://doi.org/10.1021/acs.energyfuels.1c02750
id ftchacadsciegiec:oai:ir.giec.ac.cn:344007/35815
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spelling ftchacadsciegiec:oai:ir.giec.ac.cn:344007/35815 2023-12-24T10:18:33+01:00 Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes Zhang, Yu Zhang, Lei Zhu, Chuan-Yu Xu, Li-Xin Li, Xiao-Sen Chen, Zhao-Yang 2021-12-02 http://ir.giec.ac.cn/handle/344007/35815 https://doi.org/10.1021/acs.energyfuels.1c02750 英语 eng AMER CHEMICAL SOC ENERGY & FUELS http://ir.giec.ac.cn/handle/344007/35815 doi:10.1021/acs.energyfuels.1c02750 NATURAL-GAS HYDRATE DISSOCIATION SAND BED SEDIMENT DEPOSITS Energy & Fuels Engineering Chemical 期刊论文 2021 ftchacadsciegiec https://doi.org/10.1021/acs.energyfuels.1c02750 2023-11-24T01:15:29Z The hydrate formation behaviors are significantly affected by the grain size of the sediments. To more deeply understand the methane hydrate formation kinetics in a wide range of grain sizes of the sediments, the formation experiments of methane hydrate in different partially water-saturated porous media were performed in a closed system. A kind of silica sand and two kinds of silicon dioxide powders were used as the porous media in experiments. The average particle diameter of the silica sand is 229.90 mu m (fine sand level), and the average particle diameters of the silicon dioxide powders are 2.30 mu m (clay level) and 5.54 mu m (silty sand level). The experiments were carried at the initial bath temperature of 20 degrees C, and the initial formation pressure ranges from 9.0 to 15.0 MPa. The set hydrate formation temperature ranges from 3 to 9 degrees C. The gas consumption rate and the final water conversion in 229.90 mu m silica sand are much lower than that in 2.30 and 5.54 mu m silicon dioxide powders. The final water conversion is similar in 2.30 and 5.54 mu m silicon dioxide powders and can nearly reach 100% if gas provided is sufficient. The hydrate formation rates in all three kinds of porous media decline sharply at a certain water conversion point. The value of this water conversion point is the lowest in 229.90 mu m silica sand and is the highest in 5.54 mu m silicon dioxide powder. In 229.90 mu m silica sand with different water contents, the gas consumption rate basically increases as the water content decreases as a result of a better contact of hydrate-forming gas with available water and a higher diffusion speed of methane gas in silica sand with lower water saturation. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Energy & Fuels 35 23 19399 19409
institution Open Polar
collection Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR
op_collection_id ftchacadsciegiec
language English
topic NATURAL-GAS HYDRATE
DISSOCIATION
SAND
BED
SEDIMENT
DEPOSITS
Energy & Fuels
Engineering
Chemical
spellingShingle NATURAL-GAS HYDRATE
DISSOCIATION
SAND
BED
SEDIMENT
DEPOSITS
Energy & Fuels
Engineering
Chemical
Zhang, Yu
Zhang, Lei
Zhu, Chuan-Yu
Xu, Li-Xin
Li, Xiao-Sen
Chen, Zhao-Yang
Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
topic_facet NATURAL-GAS HYDRATE
DISSOCIATION
SAND
BED
SEDIMENT
DEPOSITS
Energy & Fuels
Engineering
Chemical
description The hydrate formation behaviors are significantly affected by the grain size of the sediments. To more deeply understand the methane hydrate formation kinetics in a wide range of grain sizes of the sediments, the formation experiments of methane hydrate in different partially water-saturated porous media were performed in a closed system. A kind of silica sand and two kinds of silicon dioxide powders were used as the porous media in experiments. The average particle diameter of the silica sand is 229.90 mu m (fine sand level), and the average particle diameters of the silicon dioxide powders are 2.30 mu m (clay level) and 5.54 mu m (silty sand level). The experiments were carried at the initial bath temperature of 20 degrees C, and the initial formation pressure ranges from 9.0 to 15.0 MPa. The set hydrate formation temperature ranges from 3 to 9 degrees C. The gas consumption rate and the final water conversion in 229.90 mu m silica sand are much lower than that in 2.30 and 5.54 mu m silicon dioxide powders. The final water conversion is similar in 2.30 and 5.54 mu m silicon dioxide powders and can nearly reach 100% if gas provided is sufficient. The hydrate formation rates in all three kinds of porous media decline sharply at a certain water conversion point. The value of this water conversion point is the lowest in 229.90 mu m silica sand and is the highest in 5.54 mu m silicon dioxide powder. In 229.90 mu m silica sand with different water contents, the gas consumption rate basically increases as the water content decreases as a result of a better contact of hydrate-forming gas with available water and a higher diffusion speed of methane gas in silica sand with lower water saturation.
format Report
author Zhang, Yu
Zhang, Lei
Zhu, Chuan-Yu
Xu, Li-Xin
Li, Xiao-Sen
Chen, Zhao-Yang
author_facet Zhang, Yu
Zhang, Lei
Zhu, Chuan-Yu
Xu, Li-Xin
Li, Xiao-Sen
Chen, Zhao-Yang
author_sort Zhang, Yu
title Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
title_short Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
title_full Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
title_fullStr Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
title_full_unstemmed Formation Behaviors of Methane Hydrate in Partially Water-Saturated Porous Media with Different Particle Sizes
title_sort formation behaviors of methane hydrate in partially water-saturated porous media with different particle sizes
publisher AMER CHEMICAL SOC
publishDate 2021
url http://ir.giec.ac.cn/handle/344007/35815
https://doi.org/10.1021/acs.energyfuels.1c02750
genre Methane hydrate
genre_facet Methane hydrate
op_relation ENERGY & FUELS
http://ir.giec.ac.cn/handle/344007/35815
doi:10.1021/acs.energyfuels.1c02750
op_doi https://doi.org/10.1021/acs.energyfuels.1c02750
container_title Energy & Fuels
container_volume 35
container_issue 23
container_start_page 19399
op_container_end_page 19409
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