Experimental Study of Methane Hydrate Equilibria in [EMIM]-NO3 Aqueous Solutions

The thermodynamic effect of imidazolium-based aqueous ionic liquid solutions containing 1-ethyl-3-methyl-imidazolium nitrate ([EMIM]-NO3) on methane hydrate phase equilibrium formation conditions at five mass fractions of (0.055, 0.1, 0.2, 0.3, and 0.4) has been determined. The data are obtained in...

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Bibliographic Details
Published in:Journal of Chemical & Engineering Data
Main Authors: Long, Zhen, Zhou, Xuebing, Liang, Deqing, Li, Dongliang
Format: Article in Journal/Newspaper
Language:English
Published: 2015
Subjects:
Science & Technology
Physical Sciences
Technology
Chemistry
Engineering
DUAL FUNCTION INHIBITORS
IONIC LIQUIDS
PHASE-EQUILIBRIA
ETHYLENE-GLYCOL
HYDROGEN-SULFIDE
CO2 HYDRATE
TEMPERATURE
SOLUBILITY
PRESSURE
SOLVENTS
Multidisciplinary
Chemical
Methane hydrate
Online Access:http://ir.giec.ac.cn/handle/344007/10862
https://doi.org/10.1021/acs.jced.5b00435
Description
Summary:The thermodynamic effect of imidazolium-based aqueous ionic liquid solutions containing 1-ethyl-3-methyl-imidazolium nitrate ([EMIM]-NO3) on methane hydrate phase equilibrium formation conditions at five mass fractions of (0.055, 0.1, 0.2, 0.3, and 0.4) has been determined. The data are obtained in the pressure range of (3.08 to 16.12) MPa and temperature range of (274.0 and 289.7) K by using an isochoric pressure search method. The studied ionic liquid is found to behave well as a thermodynamic inhibitor on the methane hydrate. Results show that the hydrate phase boundary of methane hydrate is shifted to lower temperature at constant pressure about 1.0 K to 7.3 K in the presence of [EMIM]-NO3 aqueous solutions. Moreover, an enhanced increase in inhibition effect is demonstrated with increasing concentrations.

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