Kinetics and Reaction Mechanism of Catalytic Oxidation of Ammonium Sulfite

Shaopeng Guo; Jiahua Wang; Xin Chen; Jia Zhang; Rui Zhang; Jun Lu

doi:10.14233/ajchem.2014.15320

Issue

Vol. 26 No. 1 (2014): Vol 26 Issue 1

Issue Published : December 26, 2013

This work is licensed under a Creative Commons Attribution 4.0 International License.

Kinetics and Reaction Mechanism of Catalytic Oxidation of Ammonium Sulfite

https://doi.org/10.14233/ajchem.2014.15320

Shaopeng Guo

Key Laboratory of Coal Gasification, Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China

Jiahua Wang

MWH Environmental Engineering (Shanghai) Co., Ltd., Shanghai 201103, P.R. China

Xin Chen

SINOPEC Ningbo Engineering Co., Ltd., Ningbo 315103, P.R. China

Jia Zhang

Key Laboratory of Coal Gasification, Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China

Rui Zhang

Key Laboratory of Coal Gasification, Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China

Jun Lu

Key Laboratory of Coal Gasification, Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China

Corresponding Author(s) : Jun Lu

lujun@ecust.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 1 (2014): Vol 26 Issue 1
Article Published : December 26, 2013

Abstract

The effects of five catalysts on the oxidation rate of ammonium sulfite were compared by intrinsic experiments using self-designed bath reactor. Fe²⁺ was turned out to be a good catalyst for oxidation of ammonium sulfite. Using stirred bubbling reactor, the kinetics of catalytic oxidation of sulfite in the ammonium-based wet flue gas desulfurization process were investigated by varying concentrations of (NH₄)₂SO₄, (NH₄)₂SO₃ and Fe²⁺, pH, air flow rate and temperature. The reaction was found to be first order with respect to ammonium sulfite, 0.4 order with respect to Fe²⁺ and the oxidation could reach the maximum rate when pH value was close to 6. The mechanism of the oxidation was discussed and concluded that the oxidation is controlled by diffusion of oxygen.

Keywords

Kinetics Mechanism Catalyst Ammonium sulfite Ammonia-based flue gas desulphurization

Guo, S., Wang, J., Chen, X., Zhang, J., Zhang, R., & Lu, J. (2013). Kinetics and Reaction Mechanism of Catalytic Oxidation of Ammonium Sulfite. Asian Journal of Chemistry, 26(1), 69–74. https://doi.org/10.14233/ajchem.2014.15320

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References

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References

Z.M. Zhou and Z. Chen, Guangdong Chem. Ind. (China), 34, 5 (2007).

H.W. Kang, Y.B. Zhou and J.P. Li, Guangdong Chem. Ind. (China), 37, 132 (2009).

L.D. Wang and Y. Zhao, Chem. Eng. J., 136, 221 (2008); doi:10.1016/j.cej.2007.04.004.

T. Gürkan, A. Nufal and I. Eroglu, Chem. Eng. Sci., 47, 3801 (1992); doi:10.1016/0009-2509(92)85100-P.

J.H. Zhou, W. Li and W.D. Xiao, Chem. Eng. Sci., 55, 5637 (2000); doi:10.1016/S0009-2509(00)00197-4.

X.L. Long, W. Li, W. Xiao and W. Yuan, J. Hazard. Mater., 129, 260 (2006); doi:10.1016/j.jhazmat.2005.08.035.

Y. Jia, Q. Zhong, X. Fan and X. Wang, Chem. Eng. J., 164, 132 (2010); doi:10.1016/j.cej.2010.08.041.

V. Linek and V. Vacek, Chem. Eng. Sci., 36, 1747 (1981); doi:10.1016/0009-2509(81)80124-8.

B. Zhao, Y. Li, H.L. Tong, Y.Q. Zhuo, L. Zhang, J. Shi and C.H. Chen, Chem. Eng. Sci., 60, 863 (2005); doi:10.1016/j.ces.2004.09.064.

A. Lancia, D. Musmarra, M. Prisciandaro and M. Tammaro, Chem. Eng. Sci., 54, 3019 (1999); doi:10.1016/S0009-2509(98)00483-7.

D. Karatza, M. Prisciandaro, A. Lancia and D. Musmarra, Chem. Eng. Sci., 60, 1497 (2005); doi:10.1016/j.ces.2004.10.012.

D. Karatza, M. Prisciandaro, A. Lancia and D. Musmarra, Chem. Eng. J., 145, 285 (2008); doi:10.1016/j.cej.2008.07.031.

A. Lancia and D. Musmarra, Environ. Sci. Technol., 33, 1931 (1999); doi:10.1021/es9805425.

E. Narita, F. Lawson and K.N. Han, Hydrometallurgy, 10, 21 (1983): doi: 10.1016/0304-386X(83)90074-9.

Y. Iwai, H. Eya, Y. Itoh, Y. Aral and K. Takeuchi, Fluid Phase Equilib., 83, 271 (1993); doi: 10.1016/0378-3812(93)87030-5.

L.D. Wang, Y.L. Ma, G. Yuan, W. Zhang, Y. Zhang and J.M. Hao, Sci. Sinica Chim. (China), 40, 1172 (2010).

B. Zhao, Y. Li, Y. Zhou and C.H. Chen, Korean J. Chem. Eng., 24, 471 (2006).

J.Z. Zhang and F.J. Millero, Geochim. Cosmochim. Acta, 55, 677 (1991); doi:10.1016/0016-7037(91)90333-Z.

Z. Shen, S. Guo, W. Kang, K. Zeng, M. Yin, J. Tian and J. Lu, Ind. Eng. Chem. Res., 51, 4192 (2012); doi:10.1021/ie300163v.

Issue

Vol. 26 No. 1 (2014): Vol 26 Issue 1

Kinetics and Reaction Mechanism of Catalytic Oxidation of Ammonium Sulfite

Corresponding Author(s) : Jun Lu

Abstract

Keywords

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