Kinetics of Absorption of Hydrogen Sulfide into Aqueous Fe(Ⅲ) Solutions

Asai S; Nakamura H; Konishi Y

Korean Journal of Chemical Engineering, Vol.14, No.5, 307-311, September, 1997

In our recent studies, absorption of H₂S into the aqueous Fe₂(SO₄)₃ and FeCl₃ solutions with various values of ionic strength and pH was investigated in an agitated vessel with a flat interface. Te experimental results for both systems revealed that the species which reacts with H₂S is FeOH²+. The absorption rates were explained by the theory of gas absorption with an irreversible (1,1)-th order reaction between H₂S and FeOH²+. The reaction rate constants were independent of the ionic strength of the solution and correlated as a function of temperature. In this paper, kinetics and mechanism of these absorption reactions are reviewed and the identity for both systems is emphasized.

Keywords:Gas Absorption;Hydrogen Sulfide;Fe(Ⅲ) Solutions;Reaction Kinetics;Reaction Mechanism

[References]

Asai S, Konishi Y, Yabu T, AIChE J., 36, 1331 (1990)
Asai S, Nakamura H, Aikawa H, J. Chem. Eng. Jpn., 30(3), 500 (1997)
Dean JA, "Lange's Handbook of Chemistry," McGraw-Hill, New York (1985)
Hikita H, Asai S, Kagaku Kogaku, 27, 823 (1963)
Hikita H, Asai S, Ishikawa H, Bull. Univ. Osaka Pref., A22, 57 (1973)
Hikita H, Asai S, Ishikawa H, Saito Y, Chem. Eng. Sci., 30, 607 (1975)
Imaizumi T, Biotechnol. Bioeng. Symp., 16, 363 (1986)
Kikuchi T, Komori N, Noguchi H, Honna K, Iida H, "A New Process for Hydrogen and Sulfur Recovery from Hydrogen Sulfide," Preprints I.: Sessions 1.1-5.2, 3.7-25, 4th World Congress of Chemical Engineering, Karlsruhe, Germany (1991)
Smith RM, Martell AE, "Critical Stability Constants," Inorganic Complexes, Plenum Press, New York, 4 (1976)

[Referenced By]

[1] Asai S, Konishi Y, Yabu T, AIChE J., 36, 1331 (1990)

[2] Asai S, Nakamura H, Aikawa H, J. Chem. Eng. Jpn., 30(3), 500 (1997)

[3] Dean JA, "Lange's Handbook of Chemistry," McGraw-Hill, New York (1985)

[4] Hikita H, Asai S, Kagaku Kogaku, 27, 823 (1963)

[5] Hikita H, Asai S, Ishikawa H, Bull. Univ. Osaka Pref., A22, 57 (1973)

[6] Hikita H, Asai S, Ishikawa H, Saito Y, Chem. Eng. Sci., 30, 607 (1975)

[7] Imaizumi T, Biotechnol. Bioeng. Symp., 16, 363 (1986)

[8] Kikuchi T, Komori N, Noguchi H, Honna K, Iida H, "A New Process for Hydrogen and Sulfur Recovery from Hydrogen Sulfide," Preprints I.: Sessions 1.1-5.2, 3.7-25, 4th World Congress of Chemical Engineering, Karlsruhe, Germany (1991)

[9] Smith RM, Martell AE, "Critical Stability Constants," Inorganic Complexes, Plenum Press, New York, 4 (1976)