Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions
This paper reports the thermodynamic inhibition effect of seven ionic liquids (ILs) on methane hydrate formation. The isochoric multistep heating dissociation pressure search method is applied for experimentally determining the phase boundary between hydrate-liquid-vapor (H-L-V) phases and liquid-va...
Published in: | Industrial & Engineering Chemistry Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | http://ir.giec.ac.cn/handle/344007/10922 https://doi.org/10.1021/acs.iecr.5b03480 |
id |
ftchacadsciegiec:oai:ir.giec.ac.cn:344007/10922 |
---|---|
record_format |
openpolar |
spelling |
ftchacadsciegiec:oai:ir.giec.ac.cn:344007/10922 2023-05-15T17:11:26+02:00 Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions Long, Zhen Zhou, Xuebing Shen, Xiaodong Li, Dongliang Liang, Deqing 2015-11-25 http://ir.giec.ac.cn/handle/344007/10922 https://doi.org/10.1021/acs.iecr.5b03480 英语 eng INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH http://ir.giec.ac.cn/handle/344007/10922 doi:10.1021/acs.iecr.5b03480 Science & Technology Technology Engineering DUAL FUNCTION INHIBITORS MINE VENTILATION AIR EQUATION-OF-STATE CARBON-DIOXIDE NATURAL-GAS HYDROGEN-SULFIDE CLATHRATE PERFORMANCE ENRICHMENT MIXTURES Chemical Article 期刊论文 2015 ftchacadsciegiec https://doi.org/10.1021/acs.iecr.5b03480 2022-09-23T14:12:36Z This paper reports the thermodynamic inhibition effect of seven ionic liquids (ILs) on methane hydrate formation. The isochoric multistep heating dissociation pressure search method is applied for experimentally determining the phase boundary between hydrate-liquid-vapor (H-L-V) phases and liquid-vapor (L-V) phases in the pressure and temperature ranges of 3.45-13.28 MPa and 274.3-287.6 K, respectively. All the studied IL aqueous solutions are used at a mass fraction of 0.1. A comparison of the thermodynamic inhibitory performance of various ILs is carried out and reveals the predominant role of the type of anion of ILs. Considering the difficulty in directly measuring the dissociation enthalpies, the values of Delta H of methane hydrate are also calculated using the Clausius-Clapeyron equation. It is found that the mean dissociation enthalpies of methane hydrate in the presence of the seven ILs vary from 59.05 to 60.81 kJ.mol(1), and are very close to that in pure water. Article in Journal/Newspaper Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Industrial & Engineering Chemistry Research 54 46 11701 11708 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Science & Technology Technology Engineering DUAL FUNCTION INHIBITORS MINE VENTILATION AIR EQUATION-OF-STATE CARBON-DIOXIDE NATURAL-GAS HYDROGEN-SULFIDE CLATHRATE PERFORMANCE ENRICHMENT MIXTURES Chemical |
spellingShingle |
Science & Technology Technology Engineering DUAL FUNCTION INHIBITORS MINE VENTILATION AIR EQUATION-OF-STATE CARBON-DIOXIDE NATURAL-GAS HYDROGEN-SULFIDE CLATHRATE PERFORMANCE ENRICHMENT MIXTURES Chemical Long, Zhen Zhou, Xuebing Shen, Xiaodong Li, Dongliang Liang, Deqing Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
topic_facet |
Science & Technology Technology Engineering DUAL FUNCTION INHIBITORS MINE VENTILATION AIR EQUATION-OF-STATE CARBON-DIOXIDE NATURAL-GAS HYDROGEN-SULFIDE CLATHRATE PERFORMANCE ENRICHMENT MIXTURES Chemical |
description |
This paper reports the thermodynamic inhibition effect of seven ionic liquids (ILs) on methane hydrate formation. The isochoric multistep heating dissociation pressure search method is applied for experimentally determining the phase boundary between hydrate-liquid-vapor (H-L-V) phases and liquid-vapor (L-V) phases in the pressure and temperature ranges of 3.45-13.28 MPa and 274.3-287.6 K, respectively. All the studied IL aqueous solutions are used at a mass fraction of 0.1. A comparison of the thermodynamic inhibitory performance of various ILs is carried out and reveals the predominant role of the type of anion of ILs. Considering the difficulty in directly measuring the dissociation enthalpies, the values of Delta H of methane hydrate are also calculated using the Clausius-Clapeyron equation. It is found that the mean dissociation enthalpies of methane hydrate in the presence of the seven ILs vary from 59.05 to 60.81 kJ.mol(1), and are very close to that in pure water. |
format |
Article in Journal/Newspaper |
author |
Long, Zhen Zhou, Xuebing Shen, Xiaodong Li, Dongliang Liang, Deqing |
author_facet |
Long, Zhen Zhou, Xuebing Shen, Xiaodong Li, Dongliang Liang, Deqing |
author_sort |
Long, Zhen |
title |
Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
title_short |
Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
title_full |
Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
title_fullStr |
Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
title_full_unstemmed |
Phase Equilibria and Dissociation Enthalpies of Methane Hydrate in Imidazolium Ionic Liquid Aqueous Solutions |
title_sort |
phase equilibria and dissociation enthalpies of methane hydrate in imidazolium ionic liquid aqueous solutions |
publishDate |
2015 |
url |
http://ir.giec.ac.cn/handle/344007/10922 https://doi.org/10.1021/acs.iecr.5b03480 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH http://ir.giec.ac.cn/handle/344007/10922 doi:10.1021/acs.iecr.5b03480 |
op_doi |
https://doi.org/10.1021/acs.iecr.5b03480 |
container_title |
Industrial & Engineering Chemistry Research |
container_volume |
54 |
container_issue |
46 |
container_start_page |
11701 |
op_container_end_page |
11708 |
_version_ |
1766068225051721728 |