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| HAL: hal-00658462, version 1 |
| DOI: 10.1016/j.jct.2011.10.004 |
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| Journal of Chemical Thermodynamics 46 (2012) 57-61 |
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| Phase equilibrium measurements for semi-clathrate hydrates of the (CO 2 + N2 + tetra-n-butylammonium bromide) aqueous solution system |
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| Amir H. Mohammadi 1, 2Ali Eslamimanesh 1 |
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| (2012-03) |
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| The application of semi-clathrate hydrate formation technology for gas separation purposes has gained much attention in recent years. Consequently, there is a demand for experimental data for relevant semi-clathrate hydrate phase equilibria. In this work, semi-clathrate hydrate dissociation conditions for the system comprising mixtures of {CO2 (0.151/0.399 mole fraction) + N2 (0.849/0.601 mole fraction) + 0.05, 0.15, and 0.30 mass fraction tetra-n-butylammonium bromide (TBAB)} aqueous solutions have been measured and are reported. An experimental apparatus which was designed and built in-house was used for the measurements using the isochoric pressure-search method. The range of conditions for the measurements was from 277.1 K to 293.2 K for temperature and pressures up to 16.21 MPa. The phase equilibrium data measured demonstrate the high hydrate promotion effects of TBAB aqueous solutions. |
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| 1: | Centre Énergétique et Procédés (CEP) |
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MINES ParisTech - École nationale supérieure des mines de Paris |
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| 2: | Thermodynamics Research Unit |
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University of Kwazulu-Natal |
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| CEP/Fontainebleau MINES ParisTech 35 rue Saint-Honoré - 77305 Fontainebleau Cedex - France http://www.mines-paristech.fr/Fr/CEP/ |
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| Subject | : | Engineering Sciences/Chemical and Process Engineering |
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| Gas hydrate – Semi-clathrate – TBAB – Carbon dioxide – Nitrogen – Experimental data – Separation |
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| hal-00658462, version 1 | |
| http://hal-ensmp.archives-ouvertes.fr/hal-00658462 | |
| oai:hal-ensmp.archives-ouvertes.fr:hal-00658462 | |
| From: Doriane Ibarra | |
| Submitted on: Tuesday, 10 January 2012 14:37:21 | |
| Updated on: Tuesday, 10 January 2012 14:37:21 | |
