Semi-clathrate hydrate phase stability conditions for methane + TetraButylAmmonium Bromide (TBAB)/TetraButylAmmonium Acetate (TBAA) + water system: Experimental measurements and thermodynamic modeling
نویسندگان
چکیده
One of the promising applications clathrate/gas hydrates is transport and storage natural gas. Semi-clathrate have received more attention due to milder pressure/temperature stability conditions compared ordinary clathrate hydrates. The most commonly reported semi-clathrate are formed from a combination gas + water quaternary ammonium salts. In this work, total 53 equilibrium data for methane TetraButylAmmonium Bromide (TBAB)/TetraButylAmmonium Acetate (TBAA) aqueous solutions were experimentally measured. For TBAB, three concentrations including 0.0350, 0.0490, 0.1500 mass fractions used. TBAA, solution with 0.0990 fraction was Additionally, modified Chen–Guo model applied calculate hydrate phase TBAB/TBAA solutions. can accurately aforementioned Average Absolute Deviations ((AAD) T (AAD) P ) 0.1 K 0.08 MPa, respectively. temperature increments TBAB 7.7, 9.4, 13.5 K, This value TBAA 6.2 K. Therefore, it concluded that stronger promoter TBAA.
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ژورنال
عنوان ژورنال: Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles
سال: 2021
ISSN: ['1294-4475', '1953-8189']
DOI: https://doi.org/10.2516/ogst/2021055