Solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine and piperazine / Dirk Speyer in Industrial & engineering chemistry research, Vol. 51 N° 38 (Septembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12549-12556 Titre : Solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine and piperazine Type de document : texte imprimé Auteurs : Dirk Speyer, Auteur ; Arne Böttger, Auteur ; Maurer, Gerd, Auteur Année de publication : 2012 Article en page(s) : pp. 12549-12556 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Aqueous solution Hydrogen sulfides Solubility Résumé : The solubility of hydrogen sulfide in an aqueous mixture of 2,2'-methyliminodiethanol (N-methyldiethanolamine, [CAS 105-59-9], MDEA) and 1,4-diazacyclohexane (piperazine, [CAS 110-85-0], PIPH2) was measured over a wide range of gas-loadings (stoichiometric molar ratios of hydrogen sulfide to (MDEA + PIPH2) between about 0.014 and 1.67) at three temperatures (about 313 K, 353 K, and 393 K) by headspace gas chromatography as well as by a synthetic gas solubility method. The molality of MDEA in the aqueous mixture was about 4.5 mol·(kg water)―1 and that of PIPH2 about 1.6 mol·(kg water)―1. The headspace gas chromatography technique was applied in the low pressure range (partial pressure of H2S between 0.64 and 125.7 kPa, stoichiometric molar ratio of H2S to (MDEA + PIPH2) between about 0.014 and 0.73). The synthetic method was applied in the high pressure range (total pressure between 0.2 and 5.5 MPa, stoichiometric molar ratio of H2S to (MDEA + PIPH2) between about about 0.51 and 1.67). The new experimental results are compared to prediction results from a thermodynamic model that was parametrized using only experimental results for the solubility of H2S data in the aqueous solution of the single amines in the high pressure range. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26399707 [article] Solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine and piperazine [texte imprimé] / Dirk Speyer, Auteur ; Arne Böttger, Auteur ; Maurer, Gerd, Auteur . - 2012 . - pp. 12549-12556. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12549-12556 Mots-clés : Aqueous solution Hydrogen sulfides Solubility Résumé : The solubility of hydrogen sulfide in an aqueous mixture of 2,2'-methyliminodiethanol (N-methyldiethanolamine, [CAS 105-59-9], MDEA) and 1,4-diazacyclohexane (piperazine, [CAS 110-85-0], PIPH2) was measured over a wide range of gas-loadings (stoichiometric molar ratios of hydrogen sulfide to (MDEA + PIPH2) between about 0.014 and 1.67) at three temperatures (about 313 K, 353 K, and 393 K) by headspace gas chromatography as well as by a synthetic gas solubility method. The molality of MDEA in the aqueous mixture was about 4.5 mol·(kg water)―1 and that of PIPH2 about 1.6 mol·(kg water)―1. The headspace gas chromatography technique was applied in the low pressure range (partial pressure of H2S between 0.64 and 125.7 kPa, stoichiometric molar ratio of H2S to (MDEA + PIPH2) between about 0.014 and 0.73). The synthetic method was applied in the high pressure range (total pressure between 0.2 and 5.5 MPa, stoichiometric molar ratio of H2S to (MDEA + PIPH2) between about about 0.51 and 1.67). The new experimental results are compared to prediction results from a thermodynamic model that was parametrized using only experimental results for the solubility of H2S data in the aqueous solution of the single amines in the high pressure range. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26399707

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