The Properties of Iron Oxide Desulfurization Sorbents Regenerated under the Synergy of SO2-O2 Atmosphere

Article Preview

Abstract:

Iron oxide (Fe2O3) desulfurization sorbent was prepared from FeSO4 and NH4HCO3 by precipitation method, and its regeneration behavior under different atmosphere was studied by using Thermos gravimetric analyzer. It is found that the regeneration of Fe2O3 desulfurization sorbent is the best in the synergy of SO2-O2 atmosphere. When the concentration of O2 or SO2 in the synergy of SO2-O2 atmosphere was increased, the regeneration time can be reduced, which is beneficial to the regeneration of iron oxide desulfurization sorbent. The regeneration of Fe2O3 desulfurization sorbent in the synergy of SO2-O2 atmosphere can not only prevent sorbent sintering in single O2 atmosphere but also improve the rate of regeneration in single SO2 atmosphere.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

162-166

Citation:

Online since:

March 2017

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] M. Kobayashi, H. Shirai, M. Nunokawa, High-temperature sulfidation behavior of reduced zinc ferrite in simulated coal gas revealed by in situ X-ray diffraction analysis and Mössbauer spectroscopy, Energy Fuels , 16 (2002) 601-607.

DOI: 10.1021/ef010178m

Google Scholar

[2] B.S. Liu, Z.Y. Wan, F. Wang, Y.P. Zhan, M. Tian, A.S. Cheung, (18)O(2) label mechanism of sulfur generation and characterization in properties over mesoporous Sm-based sorbents for hot coal gas desulfurization, J. Hazard Mater, 267 (2014) 229-237.

DOI: 10.1016/j.jhazmat.2013.12.065

Google Scholar

[3] Y. Zeng, S. Zhang, F.R. Groves, D.P. Harrison, High temperature gas desulfurization with elemental sulfur production. CHEM ENG SCI, 54(1999) 3007-3017.

DOI: 10.1016/s0009-2509(98)00427-8

Google Scholar

[4] J. Mi, M. Yu, F. Yuan, J. Wang, Regeneration Characteristics and Kinetics of Modified Semi-coke Supported (Fe, Zn, Ce) Desulfurization Sorbents, Energy Fuels , 26 (2012) 6551–6558.

DOI: 10.1021/ef301222c

Google Scholar

[5] Y.G. Pan, J.F. Perales, E. Velo, L. Puigjaner, Kinetic behavior of iron oxide sorbent in hot gas desulfurization, Fuel, 84 (2005) 1105-1109.

DOI: 10.1016/j.fuel.2004.11.025

Google Scholar

[6] Y. T. Xu, J. Shangguan, Y. K. Gao, H. L. Fan, J. Mi, Effect of regeneration atmosphere on the properties of an iron oxide desulphurisation sorbent for high-temperature coal gas desulphurization, MATER RES INNOV, 19 (2015) S10-336S10-339.

DOI: 10.1179/1432891715z.0000000002188

Google Scholar

[7] L.Y. Zhang, S.F. Chen, X.G. Li, C.W. Wang, Study on the preparation of high-purity iron oxide red from pyrite sintered residue, Inorg. Chem. Ind, 36 (2004) 29-30.

Google Scholar