Reactive Absorption of Hydrogen Sulfide in Aqueous Ferric Sulfate Solution
Many commercial processes are available for the
removal of H2S from gaseous streams. The desulfurization of gas
streams using aqueous ferric sulfate solution as washing liquor is
studied. Apart from sulfur, only H2O is generated in the process, and
consequently, no waste treatment facilities are required. A distinct
advantage of the process is that the reaction of H2S with is so rapid
and complete that there remains no danger of discharging toxic waste
gas. In this study, the reactive absorption of hydrogen sulfide into
aqueous ferric sulfate solution has been studied and design
calculations for equipments have been done and effective operation
parameters on this process considered. Results show that high
temperature and low pressure are suitable for absorption reaction.
Variation of hydrogen sulfide concentration and Fe3+ concentration
with time in absorption reaction shown that the reaction of ferric
sulfate and hydrogen sulfide is first order with respect to the both
reactant. At low Fe2(SO4)3 concentration the absorption rate of H2S
increase with increasing the Fe2(SO4)3 concentration. At higher
concentration a decrease in the absorption rate was found. At higher
concentration of Fe2(SO4)3, the ionic strength and viscosity of
solution increase remarkably resulting in a decrease of solubility,
diffusivity and hence absorption rate.
[1] H. ter Maat, J. A. Hogendoorn, G. F. Versteeg , The removal of
hydrogen sulfide from gas streams using an aqueous metal sulfate
absorbent Part I. The absorption of hydrogen sulfide in metal sulfate
solutions, Separation and Purification Technology 43, 2005, pp 183-197.
[2] S. Ebrahimi, R. Kleerebezem, M. C. M. van Loosdrecht, J. J. Heijnen
(2003). Kinetics of the reactive absorption of hydrogen sulfide into
aqueous ferric sulfate solutions, Chemical Engineering Science 58,
2003, pp 417-427.
[3] D. L. HEGU and G. J. NAGL. Consider optimized iron-redox process to
remove sulfur, Hydrocarbon Processing, January, 2003, pp 53-57.
[4] R. K. Sinnott, Coulson & Richardson-s chemical engineering, vol. 6,
Fourth edition, Elsevier Butterworth-Heinemann, 2005.
[5] Nikolai Kolev, Packed Bed Column For absorption, desorption,
rectification and direct heat transfer, First edition, Elsevier, 2006.
[6] J. F. Richardson and J. R. Harker, Coulson and Richrdson-s Chemical
Engineering, Fifth edition, Butterworth-Heinemann, 2002.
[7] Levenspiel. Octave, Chemical Reaction Engineering, Third edition, John
Wiley & Sons, 1999.
[8] Robert E. Treybal, Mass Transfer Operations, Third edition, Mc Grow-
Hill, 1980.
[9] Robbert H. Perry, Don W. Green, Perry-s Chemical Engineers-
Handbook, Seventh edition, Mc Grow-Hill Professional, New York,
1997.
[1] H. ter Maat, J. A. Hogendoorn, G. F. Versteeg , The removal of
hydrogen sulfide from gas streams using an aqueous metal sulfate
absorbent Part I. The absorption of hydrogen sulfide in metal sulfate
solutions, Separation and Purification Technology 43, 2005, pp 183-197.
[2] S. Ebrahimi, R. Kleerebezem, M. C. M. van Loosdrecht, J. J. Heijnen
(2003). Kinetics of the reactive absorption of hydrogen sulfide into
aqueous ferric sulfate solutions, Chemical Engineering Science 58,
2003, pp 417-427.
[3] D. L. HEGU and G. J. NAGL. Consider optimized iron-redox process to
remove sulfur, Hydrocarbon Processing, January, 2003, pp 53-57.
[4] R. K. Sinnott, Coulson & Richardson-s chemical engineering, vol. 6,
Fourth edition, Elsevier Butterworth-Heinemann, 2005.
[5] Nikolai Kolev, Packed Bed Column For absorption, desorption,
rectification and direct heat transfer, First edition, Elsevier, 2006.
[6] J. F. Richardson and J. R. Harker, Coulson and Richrdson-s Chemical
Engineering, Fifth edition, Butterworth-Heinemann, 2002.
[7] Levenspiel. Octave, Chemical Reaction Engineering, Third edition, John
Wiley & Sons, 1999.
[8] Robert E. Treybal, Mass Transfer Operations, Third edition, Mc Grow-
Hill, 1980.
[9] Robbert H. Perry, Don W. Green, Perry-s Chemical Engineers-
Handbook, Seventh edition, Mc Grow-Hill Professional, New York,
1997.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:62897", author = "Z. Gholami and M. Torabi Angaji and F. Gholami and S. A. Razavi Alavi", title = "Reactive Absorption of Hydrogen Sulfide in Aqueous Ferric Sulfate Solution", abstract = "Many commercial processes are available for the
removal of H2S from gaseous streams. The desulfurization of gas
streams using aqueous ferric sulfate solution as washing liquor is
studied. Apart from sulfur, only H2O is generated in the process, and
consequently, no waste treatment facilities are required. A distinct
advantage of the process is that the reaction of H2S with is so rapid
and complete that there remains no danger of discharging toxic waste
gas. In this study, the reactive absorption of hydrogen sulfide into
aqueous ferric sulfate solution has been studied and design
calculations for equipments have been done and effective operation
parameters on this process considered. Results show that high
temperature and low pressure are suitable for absorption reaction.
Variation of hydrogen sulfide concentration and Fe3+ concentration
with time in absorption reaction shown that the reaction of ferric
sulfate and hydrogen sulfide is first order with respect to the both
reactant. At low Fe2(SO4)3 concentration the absorption rate of H2S
increase with increasing the Fe2(SO4)3 concentration. At higher
concentration a decrease in the absorption rate was found. At higher
concentration of Fe2(SO4)3, the ionic strength and viscosity of
solution increase remarkably resulting in a decrease of solubility,
diffusivity and hence absorption rate.", keywords = "Absorption, Fe2(SO4)3, H2S, Reactive Absorption.", volume = "3", number = "1", pages = "80-3", }