Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium
In present work, phase equilibrium of cyclopentane-methane hydrate formed in different salt solution systems was studied using an orthogonal test method. The target ions including four cations (K+, Na+, Mg2+, Ca2+) and two anions (Cl-, SO42-) were employed. The experimental results showed that the e...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/22887 2023-05-15T17:11:32+02:00 Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium Lv, Qiunan Zang, Xueru Li, Xiaosen Li, Gang 2018-02-25 http://ir.giec.ac.cn/handle/344007/22886 http://ir.giec.ac.cn/handle/344007/22887 https://doi.org/10.1016/j.fluid.2017.11.031 英语 eng ELSEVIER SCIENCE BV FLUID PHASE EQUILIBRIA http://ir.giec.ac.cn/handle/344007/22886 http://ir.giec.ac.cn/handle/344007/22887 doi:10.1016/j.fluid.2017.11.031 Phase equilibrium Cyclopentane-methane hydrate Seawater ions Orthogonal test method BINARY CLATHRATE HYDRATE GAS HYDRATE ELECTROLYTE-SOLUTIONS AQUEOUS-SOLUTIONS DISSOCIATION ENTHALPIES WATER DESALINATION STABILITY HYDROGEN PREDICTION SYSTEMS Thermodynamics Chemistry Engineering Physical Chemical 期刊论文 2018 ftchacadsciegiec https://doi.org/10.1016/j.fluid.2017.11.031 2022-09-23T14:14:38Z In present work, phase equilibrium of cyclopentane-methane hydrate formed in different salt solution systems was studied using an orthogonal test method. The target ions including four cations (K+, Na+, Mg2+, Ca2+) and two anions (Cl-, SO42-) were employed. The experimental results showed that the equilibrium temperature of cyclopentane - methane hydrate decreased when four cations (K+, Na+, Mg2+, Ca2+) and two anions (Cl-, SO42-) were added. The equilibrium temperature decreased with the increase of ion concentrations. Analysis of variance suggested that cations presented a sequential inhibition effect on hydrate formation as follows: Mg2+ > Ca2+ > Na+ > K+, while Cl- ion had a much stronger hydrate inhibition effect than SO42- ion. The hydrate inhibition strength of an ion depended on the charge and radii of ion. The inhibitory effects of ions became intensified with the charge increased and radius decreased. And the radius of ions played a more significant role than charge of ions in altering hydrate phase equilibrium. (C) 2017 Published by Elsevier B.V. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Fluid Phase Equilibria 458 272 277 |
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Open Polar |
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Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Phase equilibrium Cyclopentane-methane hydrate Seawater ions Orthogonal test method BINARY CLATHRATE HYDRATE GAS HYDRATE ELECTROLYTE-SOLUTIONS AQUEOUS-SOLUTIONS DISSOCIATION ENTHALPIES WATER DESALINATION STABILITY HYDROGEN PREDICTION SYSTEMS Thermodynamics Chemistry Engineering Physical Chemical |
spellingShingle |
Phase equilibrium Cyclopentane-methane hydrate Seawater ions Orthogonal test method BINARY CLATHRATE HYDRATE GAS HYDRATE ELECTROLYTE-SOLUTIONS AQUEOUS-SOLUTIONS DISSOCIATION ENTHALPIES WATER DESALINATION STABILITY HYDROGEN PREDICTION SYSTEMS Thermodynamics Chemistry Engineering Physical Chemical Lv, Qiunan Zang, Xueru Li, Xiaosen Li, Gang Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
topic_facet |
Phase equilibrium Cyclopentane-methane hydrate Seawater ions Orthogonal test method BINARY CLATHRATE HYDRATE GAS HYDRATE ELECTROLYTE-SOLUTIONS AQUEOUS-SOLUTIONS DISSOCIATION ENTHALPIES WATER DESALINATION STABILITY HYDROGEN PREDICTION SYSTEMS Thermodynamics Chemistry Engineering Physical Chemical |
description |
In present work, phase equilibrium of cyclopentane-methane hydrate formed in different salt solution systems was studied using an orthogonal test method. The target ions including four cations (K+, Na+, Mg2+, Ca2+) and two anions (Cl-, SO42-) were employed. The experimental results showed that the equilibrium temperature of cyclopentane - methane hydrate decreased when four cations (K+, Na+, Mg2+, Ca2+) and two anions (Cl-, SO42-) were added. The equilibrium temperature decreased with the increase of ion concentrations. Analysis of variance suggested that cations presented a sequential inhibition effect on hydrate formation as follows: Mg2+ > Ca2+ > Na+ > K+, while Cl- ion had a much stronger hydrate inhibition effect than SO42- ion. The hydrate inhibition strength of an ion depended on the charge and radii of ion. The inhibitory effects of ions became intensified with the charge increased and radius decreased. And the radius of ions played a more significant role than charge of ions in altering hydrate phase equilibrium. (C) 2017 Published by Elsevier B.V. |
format |
Report |
author |
Lv, Qiunan Zang, Xueru Li, Xiaosen Li, Gang |
author_facet |
Lv, Qiunan Zang, Xueru Li, Xiaosen Li, Gang |
author_sort |
Lv, Qiunan |
title |
Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
title_short |
Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
title_full |
Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
title_fullStr |
Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
title_full_unstemmed |
Effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
title_sort |
effect of seawater ions on cyclopentane-methane hydrate phase equilibrium |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2018 |
url |
http://ir.giec.ac.cn/handle/344007/22886 http://ir.giec.ac.cn/handle/344007/22887 https://doi.org/10.1016/j.fluid.2017.11.031 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
FLUID PHASE EQUILIBRIA http://ir.giec.ac.cn/handle/344007/22886 http://ir.giec.ac.cn/handle/344007/22887 doi:10.1016/j.fluid.2017.11.031 |
op_doi |
https://doi.org/10.1016/j.fluid.2017.11.031 |
container_title |
Fluid Phase Equilibria |
container_volume |
458 |
container_start_page |
272 |
op_container_end_page |
277 |
_version_ |
1766068319463407616 |