Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon
The porous materials, hollow silica (HSC) and activated carbon (AC), were selected to investigate their effects with water on methane hydrate formation and dissociation. The methane hydrate formation with the porous materials was conducted at 8 MPa and 277 K. The dissociation of hydrates was achieve...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
Chula Digital Collections
2018
|
Subjects: | |
Online Access: | https://digital.car.chula.ac.th/chulaetd/2548 https://doi.org/10.58837/CHULA.THE.2018.417 https://digital.car.chula.ac.th/context/chulaetd/article/3547/viewcontent/Sarocha_20R_Thesis_2018.pdf |
id |
ftchulalongkornu:oai:digital.car.chula.ac.th:chulaetd-3547 |
---|---|
record_format |
openpolar |
spelling |
ftchulalongkornu:oai:digital.car.chula.ac.th:chulaetd-3547 2023-12-17T10:33:22+01:00 Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon Rungrussamee, Sarocha 2018-01-01T08:00:00Z application/pdf https://digital.car.chula.ac.th/chulaetd/2548 https://doi.org/10.58837/CHULA.THE.2018.417 https://digital.car.chula.ac.th/context/chulaetd/article/3547/viewcontent/Sarocha_20R_Thesis_2018.pdf English eng Chula Digital Collections https://digital.car.chula.ac.th/chulaetd/2548 doi:10.58837/CHULA.THE.2018.417 https://digital.car.chula.ac.th/context/chulaetd/article/3547/viewcontent/Sarocha_20R_Thesis_2018.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Chulalongkorn University Theses and Dissertations (Chula ETD) Petroleum Engineering text 2018 ftchulalongkornu https://doi.org/10.58837/CHULA.THE.2018.417 2023-11-19T20:13:03Z The porous materials, hollow silica (HSC) and activated carbon (AC), were selected to investigate their effects with water on methane hydrate formation and dissociation. The methane hydrate formation with the porous materials was conducted at 8 MPa and 277 K. The dissociation of hydrates was achieved by thermal stimulation with 294 K temperature driving force. The result showed that the hydrate formation of the system with 1:14 HSC to water ratio, the system with excess water, provided the highest methane consumed and water conversion to hydrates. That is because the HSC has low density allowing it to float on water and small particle size leading to the highest volume of water in the system. However, the excess water increased the mass transfer resistance obstructing the gas to dissolve into the water. The system with 1:0.8 AC to water ratio, water deficit, had the lowest methane consumed and water conversion to hydrates. That is because its hydrophilic nature and capillary effect caused by AC small pores. This resulted in the insufficient water to convert to hydrates and led to the low methane consumed. However, the AC has a large surface area and can adsorb methane. And that may aid the gas solubility and fast induction time of the system with the AC. The final methane recovery was about the same in the systems with the HSC and AC at the same temperature driving force (294 K). Therefore, the amount of water and type of porous materials could play important roles on the methane hydrate formation. Text Methane hydrate Chula Digital Collections |
institution |
Open Polar |
collection |
Chula Digital Collections |
op_collection_id |
ftchulalongkornu |
language |
English |
topic |
Petroleum Engineering |
spellingShingle |
Petroleum Engineering Rungrussamee, Sarocha Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
topic_facet |
Petroleum Engineering |
description |
The porous materials, hollow silica (HSC) and activated carbon (AC), were selected to investigate their effects with water on methane hydrate formation and dissociation. The methane hydrate formation with the porous materials was conducted at 8 MPa and 277 K. The dissociation of hydrates was achieved by thermal stimulation with 294 K temperature driving force. The result showed that the hydrate formation of the system with 1:14 HSC to water ratio, the system with excess water, provided the highest methane consumed and water conversion to hydrates. That is because the HSC has low density allowing it to float on water and small particle size leading to the highest volume of water in the system. However, the excess water increased the mass transfer resistance obstructing the gas to dissolve into the water. The system with 1:0.8 AC to water ratio, water deficit, had the lowest methane consumed and water conversion to hydrates. That is because its hydrophilic nature and capillary effect caused by AC small pores. This resulted in the insufficient water to convert to hydrates and led to the low methane consumed. However, the AC has a large surface area and can adsorb methane. And that may aid the gas solubility and fast induction time of the system with the AC. The final methane recovery was about the same in the systems with the HSC and AC at the same temperature driving force (294 K). Therefore, the amount of water and type of porous materials could play important roles on the methane hydrate formation. |
format |
Text |
author |
Rungrussamee, Sarocha |
author_facet |
Rungrussamee, Sarocha |
author_sort |
Rungrussamee, Sarocha |
title |
Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
title_short |
Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
title_full |
Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
title_fullStr |
Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
title_full_unstemmed |
Effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
title_sort |
effecst of water on the methane hydrate formation and dissociation with hollow silica and activated carbon |
publisher |
Chula Digital Collections |
publishDate |
2018 |
url |
https://digital.car.chula.ac.th/chulaetd/2548 https://doi.org/10.58837/CHULA.THE.2018.417 https://digital.car.chula.ac.th/context/chulaetd/article/3547/viewcontent/Sarocha_20R_Thesis_2018.pdf |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Chulalongkorn University Theses and Dissertations (Chula ETD) |
op_relation |
https://digital.car.chula.ac.th/chulaetd/2548 doi:10.58837/CHULA.THE.2018.417 https://digital.car.chula.ac.th/context/chulaetd/article/3547/viewcontent/Sarocha_20R_Thesis_2018.pdf |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.58837/CHULA.THE.2018.417 |
_version_ |
1785587350970040320 |