Separation of ionic liquids from dilute aqueous solutions using the method based on CO2 hydrates

Peng, Xiaoming; Hu, Yu‐Feng; Liu, Yansheng; Jin, Chuan-Wei; Lin, Haibo

doi:10.1016/s1003-9953(09)60027-x

Cited by 55 publications

(27 citation statements)

References 18 publications

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“…The thermodynamic gas hydrate inhibition efficiency for ILs with the same anion attached to shorter alkyl chain (C 2 ) substituent is better than that of ILs with longer alkyl chain (C 4 ) substituent. 51 Among all the studied ILs, [C 2 C 1 im]Cl is the most effective IL in shifting the gas hydrate equilibrium line to lower temperatures, whereas [C 4 C 1 im][N(CN) 2 ] is the least effective IL. Table 3 (samples 47−49), three (1:1) mixtures containing ILs, [C 2 C 1 im]Cl, and [C 2 C 1 im]Br, with monoethylene glycol (MEG) and NaCl, were studied for their efficiency and possible synergistic effect in gas hydrate inhibition.…”

Section: Effect Of Il Cations (Varying Alkyl Chain Length and Substitmentioning

confidence: 99%

Gas Hydrate Inhibition: A Review of the Role of Ionic Liquids

Tariq

Rooney

Othman

et al. 2014

Ind. Eng. Chem. Res.

188

117

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Ionic liquids (ILs) are popular designer green chemicals with great potential for use in diverse energy-related applications. Apart from the well-known low vapor pressure, the physical properties of ILs, such as hydrogen-bond-forming capacity, physical state, shape, and size, can be fine-tuned for specific applications. Natural gas hydrates are easily formed in gas pipelines and pose potential problems to the oil and natural gas industry, particularly during deep-sea exploration and production. This review summarizes the recent advances in IL research as dual-function gas hydrate inhibitors. Almost all of the available thermodynamic and kinetic inhibition data in the presence of ILs have been systematically reviewed to evaluate the efficiency of ILs in gas hydrate inhibition, compared to other conventional thermodynamic and kinetic gas hydrate inhibitors. The principles of natural gas hydrate formation, types of gas hydrates and their inhibitors, apparatuses and methods used, reported experimental data, and theoretical methods are thoroughly and critically discussed. The studies in this field will facilitate the design of advanced ILs for energy savings through the development of efficient low-dosage gas hydrate inhibitors.

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Section: Effect Of Il Cations (Varying Alkyl Chain Length and Substitmentioning

confidence: 99%

Gas Hydrate Inhibition: A Review of the Role of Ionic Liquids

Tariq

Rooney

Othman

et al. 2014

Ind. Eng. Chem. Res.

188

117

View full text Add to dashboard Cite

show abstract

“…Some ionic liquids even have unusual high carbon dioxide solubility [5]. It has been pointed out that the ionic liquids are not only thermodynamic inhibitors (reducing the dissociation temperature) but also kinetic inhibitors (slowing down the hydrate nucleation rate and/or hydrate formation rate) for methane or carbon dioxide hydrates [6][7][8][9][10][11][12]. On the other hand, there also has been reported that ionic liquids can act as kinetic promoters for carbon dioxide hydrate [13].…”

Section: Introductionmentioning

confidence: 96%

Inhibition effect of 1-ethyl-3-methylimidazolium chloride on methane hydrate equilibrium

Chu

Chen

et al. 2015

The Journal of Chemical Thermodynamics

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“…In recent years, ionic liquids are emerging as a novel alternative in extraction processes [2][3][4][5][6][7], two-phase homogeneous catalytic reaction [8] and separation processes [9][10][11][12][13] for the reduction of the amount of volatile organic solvents (VOSs) used in industry.…”

Section: Introductionmentioning

confidence: 99%