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A thermodynamic model for the solubility of carbon dioxide in aqueous solutions of (N-methyldiethanolamine (MDEA)+piperazine (PIPH 2 )) is presented. The model combines and extends previous models for the solubility of CO 2 in aqueous solutions of the single amines and also accounts for the volatility of both amines. Model parameters are estimated from previously published experimental...
New experimental results for the solubility of hydrogen sulfide in aqueous solutions of piperazine are presented for piperazine molalities up to 4mol/kg of water, temperatures between 313 and 393K, and pressures up to about 9MPa. Furthermore, the solubility of hydrogen sulfide was measured in about 2m MDEA + 2m piperazine aqueous solutions at 353K up to about 6MPa. Considering the new experimental...
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