Correlation and prediction of the solubility of CO{sub 2} and H{sub 2}S in an aqueous solution of methyldiethanolamine and sulfolane

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie00046a041· OSTI ID:178407

Qian, W M; Li, Y G ^[1]; Mather, A E ^[2]

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1. Tsinghua Univ., Beijing (China). Dept. of Chemical Engineering
2. Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Chemical Engineering

The Clegg-Pitzer equations with some simplifications are used to correlate the vapor-liquid equilibrium data for the CO{sub 2}-methyldiethanolamine-sulfolane-H{sub 2}O and H{sub 2}S-methyldiethanolamine-sulfolane-H{sub 2}O systems. The interaction parameters determined from data for the binary, ternary, and quaternary systems can be used to predict the quinary mixed solvent systems without any additional parameters. The model is applied to the CO{sub 2}-H{sub 2}S-methyldiethanolamine-sulfolane-H{sub 2}O system containing three neutral solvents (methyldiethanolamine, sulfolane, and H{sub 2}O), two neutral solutes (CO{sub 2} and H{sub 2}S), and three ionic species (MDEAH{sup +}, HCO{sub 3}{sup {minus}}, and HS{sup {minus}}) with three main chemical equilibria simultaneously involved.

• Sponsoring Organization: USDOE
• OSTI ID: 178407
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 7 Vol. 34; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

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