Phase equilibrium measurements for semi-clathrate hydrates of the (CO2+N2+tetra-n-butylammonium bromide) aqueous solution systems: Part 2

Belandria, Verónica; Mohammadi, Amir H.; Eslamimanesh, Ali; Richon, Dominique; Sánchez-Mora, María F.; Galicia‐Luna, Luis A.

doi:10.1016/j.fluid.2012.02.020

Cited by 69 publications

(22 citation statements)

References 39 publications

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“…Compared with clathrate hydrate, SCH has the advantage of moderate pressure-temperature conditions. And among SCH forming compounds, TBAB [15][16][17][18][19][20][21][22][23][24], TBAC [25][26][27][28][29][30], and TBAF [30][31][32][33] are perhaps the most promising ones for industrial applications, especially gas separation.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Shi

Liang

2015

Fluid Phase Equilibria

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Section: Introductionmentioning

confidence: 99%

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Shi

Liang

2015

Fluid Phase Equilibria

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“…Semi‐clathrates are a promising alternative to gas hydrates for technological applications because they generally form cage lattices under milder conditions. This HBGS technology has been extensively studied for CO 2 capture from fuel gas and flue gas because the CO 2 capture efficiency is much higher than in conventional separation processes (chemical absorption, physical absorption, membranes, etc. ).…”

Section: Introductionmentioning

confidence: 99%

Investigation of CO₂ separation from synthesis CO₂/CH₄ mixture utilizing tetra‐n‐butyl ammonium bromide semi‐hydrate

Zang

Liang

2016

Can J Chem Eng

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Semi‐clathrate hydrates of tetra‐n‐butyl ammonium bromide (TBAB) offer a potential solution for separation of CO2 from biogas. In this work, gas hydrate formation from a CO2/CH4 mixture in distilled water with 0.05 g/g (5 wt%) TBAB was examined at 275, 277, and 279 K with pressures of 4000, 5000, and 6000 kPa. The compositional changes of the gas phase were analyzed continuously during the hydrate formation process. The results indicated that no significant induction occurred during hydrate formation. The CO2 separation factor increased with decreasing temperature and increasing pressure. The maximum amount of CO2 gas molar ratio in the residual gas phase was 79.81 mol% at 4000 kPa and 275 K with a gas/liquid volume ratio (Vg/Vl) of 1. TBAB promoted hydrate formation and CO2 separation; however, the CO2 separation factor decreased in a decomposed solution compared with fresh TBAB solution. The experimental results provide a theoretical basis for the use of hydrate‐based gas separation (HBGS) technology in biogas purification.

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“…Many studies on semiclathrate hydrates have recently reported the capture of CO 2 from flue and fuel gas mixtures. [3][4][5] Promoters (or hydrate formers) are mainly organic compounds classified in two groups: thermodynamic and kinetic. The first ones extend the hydrate formation region in a P-T diagram.…”

Section: Introductionmentioning

confidence: 99%

Hydrate Equilibrium Data for CO₂+N₂ System in the Presence of Tetra-n-butylammonium Fluoride (TBAF) and Mixture of TBAF and Cyclopentane (CP)

et al. 2016

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Hydrates can be used for CO 2 capture from flue gases (hydrate crystallization). In this work, hydrate equilibrium data were measured and compared with literature data. The isochoric method was used to determine the gas hydrate dissociation points. Different CO 2 +N 2 gas mixtures were used in the presence of promoters such as tetra-n-butylammonium fluoride (TBAF) and mixtures of TBAF and cyclopentane (CP). The key novel aspect of this work is the use of a combination of promoters, TBAF and CP, which under certain conditions induced further pressure reduction in comparison to pure TBAF results. Concerning experiments with pure promoter, there is good agreement between our results and literature results for different gas mixtures and promoter concentrations.

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Phase equilibrium measurements for semi-clathrate hydrates of the (CO2+N2+tetra-n-butylammonium bromide) aqueous solution systems: Part 2

Cited by 69 publications

References 39 publications

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Investigation of CO₂ separation from synthesis CO₂/CH₄ mixture utilizing tetra‐n‐butyl ammonium bromide semi‐hydrate

Hydrate Equilibrium Data for CO₂+N₂ System in the Presence of Tetra-n-butylammonium Fluoride (TBAF) and Mixture of TBAF and Cyclopentane (CP)

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Phase equilibrium measurements for semi-clathrate hydrates of the (CO2+N2+tetra-n-butylammonium bromide) aqueous solution systems: Part 2

Cited by 69 publications

References 39 publications

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Thermodynamic model of phase equilibria of tetrabutyl ammonium halide (fluoride, chloride, or bromide) plus methane or carbon dioxide semiclathrate hydrates

Investigation of CO2 separation from synthesis CO2/CH4 mixture utilizing tetra‐n‐butyl ammonium bromide semi‐hydrate

Hydrate Equilibrium Data for CO2+N2 System in the Presence of Tetra-n-butylammonium Fluoride (TBAF) and Mixture of TBAF and Cyclopentane (CP)

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Investigation of CO₂ separation from synthesis CO₂/CH₄ mixture utilizing tetra‐n‐butyl ammonium bromide semi‐hydrate

Hydrate Equilibrium Data for CO₂+N₂ System in the Presence of Tetra-n-butylammonium Fluoride (TBAF) and Mixture of TBAF and Cyclopentane (CP)