Study of CO2 Solubility in Brine under Different Temperatures and Pressures
作者： Hossein Hamidi , Nur Farah Ain Mohd Atib , Amin Azdarpour , Erfan Mohammadian
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.1113.440
关键词:
摘要: The solubility of CO2 in water and aqueous solutions NaCl, KCl, CaCl2, NaCl+KCl (weight ratio= 1:1), NaCl+CaCl2 KCl+CaCl2 1:1) NaCl+KCl+CaCl2 1:1:1) was determined experimentally at 35, 45 55°C up to 16 MPa the concentration salt 14.3 wt% while simulation ions Na+, K+, Ca2+, Cl- wide temperature-pressure-ionic strength range (273 533 K, from 0 2000 bar, 4.5 molality salts). Based on experiment data, increased with increase pressure but decreased increasing temperature concentration. Meanwhile, model also predicted seawater two phase coexistence (vapour-liquid or liquid-vapor) three-phase (CO2 hydrate-liquid water-vapor CO2).
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