Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation
For potential application in advanced gas storage at moderate temperatures, a systematic study on tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation kinetics was conducted using isobaric kinetics measurements to evaluate the effects of pressure (6.0, 3.0 MPa), temperature (278...
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ROYAL SOC CHEMISTRY
2017
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ftchacadscgigcas:oai:ir.gig.ac.cn:344008/43375 2023-05-15T17:12:05+02:00 Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation Shi, Lingli Liang, Deqing 2017 http://ir.gig.ac.cn/handle/344008/43375 https://doi.org/10.1039/c7ra10595a 英语 eng ROYAL SOC CHEMISTRY RSC ADVANCES http://ir.gig.ac.cn/handle/344008/43375 doi:10.1039/c7ra10595a Chemistry Multidisciplinary BUTYL AMMONIUM BROMIDE METHANE HYDRATE FORMATION PHASE-EQUILIBRIUM CONDITIONS N-BUTYLAMMONIUM CHLORIDE CLATHRATE HYDRATE AQUEOUS-SOLUTIONS CARBON-DIOXIDE CO2 CAPTURE TETRABUTYLPHOSPHONIUM BROMIDE COLD-STORAGE 期刊论文 2017 ftchacadscgigcas https://doi.org/10.1039/c7ra10595a 2020-12-22T07:21:49Z For potential application in advanced gas storage at moderate temperatures, a systematic study on tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation kinetics was conducted using isobaric kinetics measurements to evaluate the effects of pressure (6.0, 3.0 MPa), temperature (278 K, subcooling degree of 6 K), and salt concentration (0.10, 0.20, 0.30, 0.34, 0.45 mass fraction). The results revealed that the systems showed shorter induction time, higher normalized gas consumption and higher rapid growth rate under a higher supersaturation environment, represented by higher pressure or lower temperature. Besides, the effect of salt concentration was complicated. With the increase of salt concentration, the total gas consumption was almost the same while the normalized gas consumption decreased greatly, indicating that the amount of CH4 trapped in the hydrate unit greatly decreased and the system with low salt concentration was a good choice for advanced gas storage. In addition, a Raman device was employed to reveal the structural properties. The spectra showed that the (TBAC + CH4) semiclathrate hydrates were formed with hexagonal structure or tetragonal structure under different salt concentrations, which were different from the structures of pure TBAC hydrate. It was assumed that at low salt concentrations the addition of CH4 induced the formation of hexagonal structure since it had three 512 cages per TBAC which was higher than that of the tetragonal structure. Report Methane hydrate Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) RSC Advances 7 84 53563 53569 |
institution |
Open Polar |
collection |
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscgigcas |
language |
English |
topic |
Chemistry Multidisciplinary BUTYL AMMONIUM BROMIDE METHANE HYDRATE FORMATION PHASE-EQUILIBRIUM CONDITIONS N-BUTYLAMMONIUM CHLORIDE CLATHRATE HYDRATE AQUEOUS-SOLUTIONS CARBON-DIOXIDE CO2 CAPTURE TETRABUTYLPHOSPHONIUM BROMIDE COLD-STORAGE |
spellingShingle |
Chemistry Multidisciplinary BUTYL AMMONIUM BROMIDE METHANE HYDRATE FORMATION PHASE-EQUILIBRIUM CONDITIONS N-BUTYLAMMONIUM CHLORIDE CLATHRATE HYDRATE AQUEOUS-SOLUTIONS CARBON-DIOXIDE CO2 CAPTURE TETRABUTYLPHOSPHONIUM BROMIDE COLD-STORAGE Shi, Lingli Liang, Deqing Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
topic_facet |
Chemistry Multidisciplinary BUTYL AMMONIUM BROMIDE METHANE HYDRATE FORMATION PHASE-EQUILIBRIUM CONDITIONS N-BUTYLAMMONIUM CHLORIDE CLATHRATE HYDRATE AQUEOUS-SOLUTIONS CARBON-DIOXIDE CO2 CAPTURE TETRABUTYLPHOSPHONIUM BROMIDE COLD-STORAGE |
description |
For potential application in advanced gas storage at moderate temperatures, a systematic study on tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation kinetics was conducted using isobaric kinetics measurements to evaluate the effects of pressure (6.0, 3.0 MPa), temperature (278 K, subcooling degree of 6 K), and salt concentration (0.10, 0.20, 0.30, 0.34, 0.45 mass fraction). The results revealed that the systems showed shorter induction time, higher normalized gas consumption and higher rapid growth rate under a higher supersaturation environment, represented by higher pressure or lower temperature. Besides, the effect of salt concentration was complicated. With the increase of salt concentration, the total gas consumption was almost the same while the normalized gas consumption decreased greatly, indicating that the amount of CH4 trapped in the hydrate unit greatly decreased and the system with low salt concentration was a good choice for advanced gas storage. In addition, a Raman device was employed to reveal the structural properties. The spectra showed that the (TBAC + CH4) semiclathrate hydrates were formed with hexagonal structure or tetragonal structure under different salt concentrations, which were different from the structures of pure TBAC hydrate. It was assumed that at low salt concentrations the addition of CH4 induced the formation of hexagonal structure since it had three 512 cages per TBAC which was higher than that of the tetragonal structure. |
format |
Report |
author |
Shi, Lingli Liang, Deqing |
author_facet |
Shi, Lingli Liang, Deqing |
author_sort |
Shi, Lingli |
title |
Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
title_short |
Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
title_full |
Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
title_fullStr |
Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
title_full_unstemmed |
Investigation of kinetics of tetrabutylammonium chloride (TBAC) + CH4 semiclathrate hydrate formation |
title_sort |
investigation of kinetics of tetrabutylammonium chloride (tbac) + ch4 semiclathrate hydrate formation |
publisher |
ROYAL SOC CHEMISTRY |
publishDate |
2017 |
url |
http://ir.gig.ac.cn/handle/344008/43375 https://doi.org/10.1039/c7ra10595a |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
RSC ADVANCES http://ir.gig.ac.cn/handle/344008/43375 doi:10.1039/c7ra10595a |
op_doi |
https://doi.org/10.1039/c7ra10595a |
container_title |
RSC Advances |
container_volume |
7 |
container_issue |
84 |
container_start_page |
53563 |
op_container_end_page |
53569 |
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1766068853973975040 |