☆ 4.6 Article

Hydrate phase equilibria of CO2 + N2 + aqueous solution of THF, TBAB or TBAF system

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL (2014)

期刊

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL

卷 26, 期 -, 页码 185-192

出版社

ELSEVIER SCI LTD

DOI: 10.1016/j.ijggc.2014.04.013

关键词

Gas hydrates; Clathrate hydrates; CO2 capture; Phase equilibrium data; Promoter; Calorimetry

类别

Green & Sustainable Science & Technology Energy & Fuels Engineering, Environmental Engineering, Chemical

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摘要

We report hydrate dissociation conditions of CO2 (15 and 30 mol%) + N-2 (85 and 70 mol%) in the presence of aqueous solutions of THF, TBAB or TBAF. The concentrations of TBAB and TBAF in the aqueous solutions are 5 wt% and 9 wt% while THF concentration in aqueous solution is 3 mol%. Two different experimental techniques including isochoric pressure search method and a DSC method are used to measure the hydrate dissociation conditions. A comparison is finally made with the literature data. It is expected that this study provides better understanding of hydrate phase equilibria associated with CO2 capture. (C) 2014 Elsevier Ltd. All rights reserved.

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