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

被引：94
|
作者：
Mohammadi, Amir H. [1 ,2 ]
Eslamimanesh, Ali [2 ]
Belandria, Veronica [2 ]
Richon, Dominique [2 ]
Naidoo, Paramespri [1 ]
Ramjugernath, Deresh [1 ]
机构：
[1] Univ KwaZulu Natal, Sch Chem Engn, Thermodynam Res Unit, ZA-4041 Durban, South Africa
[2] MINES ParisTech, CEP TEP Ctr Energet & Proc, F-77305 Fontainebleau, France
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 46卷
关键词：
Gas hydrate; Semi-clathrate; TBAB; Carbon dioxide; Nitrogen; Experimental data; Separation; HYDROGEN PLUS WATER; CARBON-DIOXIDE; GAS HYDRATE; SEMICLATHRATE HYDRATE; CO2; CAPTURE; FLUE-GAS; BROMIDE; TETRAHYDROFURAN; DISSOCIATION; SEPARATION;
D O I：
10.1016/j.jct.2011.10.004
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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) + N-2 (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. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：57 / 61
页数：5
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