Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography
In this study, we observed natural methane (CH4) hydrate sediments, which are a type of unconventional natural gas resources, using x-ray computed tomography (CT). Because CH4 hydrates are formed by hydrogen bonding of water molecules with CH4, material decomposition becomes challenging when CH4 hyd...
Main Authors: | , , , , , , , |
---|---|
Language: | English |
Published: |
AIP Publishing
2024
|
Subjects: | |
Online Access: | https://kitami-it.repo.nii.ac.jp/record/2000635/files/024201_1_5.0189025.pdf |
id |
ftkitamiit:oai:kitami-it.repo.nii.ac.jp:02000635 |
---|---|
record_format |
openpolar |
spelling |
ftkitamiit:oai:kitami-it.repo.nii.ac.jp:02000635 2024-09-15T18:18:40+00:00 Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography Satoshi Takeya Akihiro Hachikubo Hirotoshi Sakagami Hirotsugu Minami Satoshi Yamashita Keiichi Hirano Kazuyuki Hyodo Akio Yoneyama 2024-01-12 application/pdf https://kitami-it.repo.nii.ac.jp/record/2000635/files/024201_1_5.0189025.pdf eng eng AIP Publishing 10.1063/5.0189025 The Journal of Chemical Physics 2 160 024201-1 024201-7 1089-7690 https://kitami-it.repo.nii.ac.jp/record/2000635/files/024201_1_5.0189025.pdf c 2024 AIP Publishing This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (Satoshi Takeya, Akihiro Hachikubo, Hirotoshi Sakagami, Hirotsugu Minami, Satoshi Yamashita, Keiichi Hirano, Kazuyuki Hyodo, Akio Yoneyama; Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography. J. Chem. Phys. 14 January 2024; 160 (2): 024201. https://doi.org/10.1063/5.0189025) and may be found at (https://pubs.aip.org/aip/jcp/article/160/2/024201/2933334/Multi-phase-retrieval-of-methane-hydrate-in). open access 2024 ftkitamiit 2024-09-03T23:44:52Z In this study, we observed natural methane (CH4) hydrate sediments, which are a type of unconventional natural gas resources, using x-ray computed tomography (CT). Because CH4 hydrates are formed by hydrogen bonding of water molecules with CH4, material decomposition becomes challenging when CH4 hydrates coexist with liquid or solid water in natural sediments. Tri-contrast (absorption, refraction, and scattering) imaging was performed via diffraction enhanced x-ray CT optics using monochromatic synchrotron x rays. The quantitative characterization of the contrast changes successfully enabled the decomposition of CH4 hydrates coexisting with frozen seawater (ice) in natural sediments obtained from the Okhotsk Sea. This study reveals complementary structural information about the microtexture and spatial relation among CH4 hydrates, ice, and pores by utilizing the distinct physical properties of x rays when passing through the materials. These results highlight the exceptional capabilities of high-resolution multicontrast x-ray tomography in materials science and geoscience applications. journal article Other/Unknown Material Methane hydrate okhotsk sea Kitami Institute of Technology Repository (KIT-R) |
institution |
Open Polar |
collection |
Kitami Institute of Technology Repository (KIT-R) |
op_collection_id |
ftkitamiit |
language |
English |
description |
In this study, we observed natural methane (CH4) hydrate sediments, which are a type of unconventional natural gas resources, using x-ray computed tomography (CT). Because CH4 hydrates are formed by hydrogen bonding of water molecules with CH4, material decomposition becomes challenging when CH4 hydrates coexist with liquid or solid water in natural sediments. Tri-contrast (absorption, refraction, and scattering) imaging was performed via diffraction enhanced x-ray CT optics using monochromatic synchrotron x rays. The quantitative characterization of the contrast changes successfully enabled the decomposition of CH4 hydrates coexisting with frozen seawater (ice) in natural sediments obtained from the Okhotsk Sea. This study reveals complementary structural information about the microtexture and spatial relation among CH4 hydrates, ice, and pores by utilizing the distinct physical properties of x rays when passing through the materials. These results highlight the exceptional capabilities of high-resolution multicontrast x-ray tomography in materials science and geoscience applications. journal article |
author |
Satoshi Takeya Akihiro Hachikubo Hirotoshi Sakagami Hirotsugu Minami Satoshi Yamashita Keiichi Hirano Kazuyuki Hyodo Akio Yoneyama |
spellingShingle |
Satoshi Takeya Akihiro Hachikubo Hirotoshi Sakagami Hirotsugu Minami Satoshi Yamashita Keiichi Hirano Kazuyuki Hyodo Akio Yoneyama Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
author_facet |
Satoshi Takeya Akihiro Hachikubo Hirotoshi Sakagami Hirotsugu Minami Satoshi Yamashita Keiichi Hirano Kazuyuki Hyodo Akio Yoneyama |
author_sort |
Satoshi Takeya |
title |
Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
title_short |
Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
title_full |
Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
title_fullStr |
Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
title_full_unstemmed |
Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
title_sort |
multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography |
publisher |
AIP Publishing |
publishDate |
2024 |
url |
https://kitami-it.repo.nii.ac.jp/record/2000635/files/024201_1_5.0189025.pdf |
genre |
Methane hydrate okhotsk sea |
genre_facet |
Methane hydrate okhotsk sea |
op_relation |
10.1063/5.0189025 The Journal of Chemical Physics 2 160 024201-1 024201-7 1089-7690 https://kitami-it.repo.nii.ac.jp/record/2000635/files/024201_1_5.0189025.pdf |
op_rights |
c 2024 AIP Publishing This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (Satoshi Takeya, Akihiro Hachikubo, Hirotoshi Sakagami, Hirotsugu Minami, Satoshi Yamashita, Keiichi Hirano, Kazuyuki Hyodo, Akio Yoneyama; Multi-phase retrieval of methane hydrate in natural sediments by cryogenic x-ray computed tomography. J. Chem. Phys. 14 January 2024; 160 (2): 024201. https://doi.org/10.1063/5.0189025) and may be found at (https://pubs.aip.org/aip/jcp/article/160/2/024201/2933334/Multi-phase-retrieval-of-methane-hydrate-in). open access |
_version_ |
1810456757290401792 |