Experimental investigation of incipient equilibrium conditions for the formation of semi-clathrate hydrates from quaternary mixtures of (CO2+ N2+ TBAB + H2O)

Autor: Matthew Clarke, P. Raj Bishnoi, Philipp Meysel, Lothar R. Oellrich
Rok vydání: 2011
Předmět:
Zdroj: The Journal of Chemical Thermodynamics. 43:1475-1479
ISSN: 0021-9614
DOI: 10.1016/j.jct.2011.04.021
Popis: The three-phase (vapour + liquid + solid) equilibrium conditions for semi-clathrates formed from three mixtures of (CO 2 + N 2 ), in aqueous solutions of tetra-butyl ammonium bromide (TBAB), were measured in an isochoric reactor. The experiments were conducted at temperatures between (281 and 290) K, at pressures between (1.9 and 5.9) MPa and in aqueous TBAB solutions of w TBAB = (0.05, 0.10, and 0.20). The experimental results obtained in this study were compared with previously obtained results for gas hydrates, formed from the same three mixtures of (CO 2 + N 2 ) and it was observed that semi-clathrates formed at a substantially lower pressure than did gas hydrates.
Databáze: OpenAIRE