Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates
Understanding the crystal properties of semiclathrate hydrates is important for their potential application in gas storage and separation. In this work, the phase equilibria of TBAB-CO2 hydrates were measured and hydrates formed from the solutions where TBAB concentrations ranged from 0.01 to 0.32 m...
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AMER CHEMICAL SOC
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Online Access: | http://ir.giec.ac.cn/handle/344007/23404 http://ir.giec.ac.cn/handle/344007/23405 https://doi.org/10.1021/acs.jced.7b00884 |
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/23405 2023-05-15T17:12:03+02:00 Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates Zhou, Xuebing Long, Zhen He, Yong Shen, Xiaodong Liang, Deqing 2018-05-01 http://ir.giec.ac.cn/handle/344007/23404 http://ir.giec.ac.cn/handle/344007/23405 https://doi.org/10.1021/acs.jced.7b00884 英语 eng AMER CHEMICAL SOC JOURNAL OF CHEMICAL AND ENGINEERING DATA http://ir.giec.ac.cn/handle/344007/23404 http://ir.giec.ac.cn/handle/344007/23405 doi:10.1021/acs.jced.7b00884 N-BUTYLAMMONIUM BROMIDE BUTYL AMMONIUM BROMIDE CO2 CAPTURE GAS-MIXTURES DISSOCIATION ENTHALPIES METHANE HYDRATE CRYSTAL-GROWTH CHLORIDE TETRABUTYLAMMONIUM ENCLATHRATION Thermodynamics Chemistry Engineering Multidisciplinary Chemical 期刊论文 2018 ftchacadsciegiec https://doi.org/10.1021/acs.jced.7b00884 2022-09-23T14:14:48Z Understanding the crystal properties of semiclathrate hydrates is important for their potential application in gas storage and separation. In this work, the phase equilibria of TBAB-CO2 hydrates were measured and hydrates formed from the solutions where TBAB concentrations ranged from 0.01 to 0.32 mass fraction were analyzed using Raman and powder X-ray diffraction. Results showed that the equilibrium pressure of TBAB-CO2 hydrate was more sensitive to temperature than that of simple CO2 hydrate, and the equilibrium temperature also got increased with a rise in TBAB concentration. By measuring the hydrate samples formed at 274 K and 3 MPa, the simple CO2 hydrates could be found distributed randomly and discontinuously in the samples, while the TBAB-CO2 hydrate crystals were relatively large. The simple CO2 hydrate was found to coexist with TBAB-CO2 hydrate, and the TBAB center dot 38H(2)O was the only semiclathrate hydrate structure regardless of the initial concentrations of TBAB. When the TBAB concentration was high, the simple CO2 hydrate was assumed to grow competitively with TBAB-CO2 hydrate. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Journal of Chemical & Engineering Data 63 5 1249 1255 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
N-BUTYLAMMONIUM BROMIDE BUTYL AMMONIUM BROMIDE CO2 CAPTURE GAS-MIXTURES DISSOCIATION ENTHALPIES METHANE HYDRATE CRYSTAL-GROWTH CHLORIDE TETRABUTYLAMMONIUM ENCLATHRATION Thermodynamics Chemistry Engineering Multidisciplinary Chemical |
spellingShingle |
N-BUTYLAMMONIUM BROMIDE BUTYL AMMONIUM BROMIDE CO2 CAPTURE GAS-MIXTURES DISSOCIATION ENTHALPIES METHANE HYDRATE CRYSTAL-GROWTH CHLORIDE TETRABUTYLAMMONIUM ENCLATHRATION Thermodynamics Chemistry Engineering Multidisciplinary Chemical Zhou, Xuebing Long, Zhen He, Yong Shen, Xiaodong Liang, Deqing Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
topic_facet |
N-BUTYLAMMONIUM BROMIDE BUTYL AMMONIUM BROMIDE CO2 CAPTURE GAS-MIXTURES DISSOCIATION ENTHALPIES METHANE HYDRATE CRYSTAL-GROWTH CHLORIDE TETRABUTYLAMMONIUM ENCLATHRATION Thermodynamics Chemistry Engineering Multidisciplinary Chemical |
description |
Understanding the crystal properties of semiclathrate hydrates is important for their potential application in gas storage and separation. In this work, the phase equilibria of TBAB-CO2 hydrates were measured and hydrates formed from the solutions where TBAB concentrations ranged from 0.01 to 0.32 mass fraction were analyzed using Raman and powder X-ray diffraction. Results showed that the equilibrium pressure of TBAB-CO2 hydrate was more sensitive to temperature than that of simple CO2 hydrate, and the equilibrium temperature also got increased with a rise in TBAB concentration. By measuring the hydrate samples formed at 274 K and 3 MPa, the simple CO2 hydrates could be found distributed randomly and discontinuously in the samples, while the TBAB-CO2 hydrate crystals were relatively large. The simple CO2 hydrate was found to coexist with TBAB-CO2 hydrate, and the TBAB center dot 38H(2)O was the only semiclathrate hydrate structure regardless of the initial concentrations of TBAB. When the TBAB concentration was high, the simple CO2 hydrate was assumed to grow competitively with TBAB-CO2 hydrate. |
format |
Report |
author |
Zhou, Xuebing Long, Zhen He, Yong Shen, Xiaodong Liang, Deqing |
author_facet |
Zhou, Xuebing Long, Zhen He, Yong Shen, Xiaodong Liang, Deqing |
author_sort |
Zhou, Xuebing |
title |
Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
title_short |
Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
title_full |
Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
title_fullStr |
Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
title_full_unstemmed |
Phase Equilibria and the Crystallographic Properties of TBAB-CO2 Semiclathrate Hydrates |
title_sort |
phase equilibria and the crystallographic properties of tbab-co2 semiclathrate hydrates |
publisher |
AMER CHEMICAL SOC |
publishDate |
2018 |
url |
http://ir.giec.ac.cn/handle/344007/23404 http://ir.giec.ac.cn/handle/344007/23405 https://doi.org/10.1021/acs.jced.7b00884 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
JOURNAL OF CHEMICAL AND ENGINEERING DATA http://ir.giec.ac.cn/handle/344007/23404 http://ir.giec.ac.cn/handle/344007/23405 doi:10.1021/acs.jced.7b00884 |
op_doi |
https://doi.org/10.1021/acs.jced.7b00884 |
container_title |
Journal of Chemical & Engineering Data |
container_volume |
63 |
container_issue |
5 |
container_start_page |
1249 |
op_container_end_page |
1255 |
_version_ |
1766068799595872256 |