Modified Shrinking Core Model for Removal of Hydrogen Sulfide with T302 Desulfurizer

DOI

10.2991/meep-15.2016.6How to use a DOI?

Keywords

porosity; gas–solid reactions; hydrogen sulfide; zinc oxide; modified shrinking core model

Abstract

The reaction between H2S and ZnO fine particles (T302 desulfurizer) was studied. The experiment results show that at the temperature below 573K, the reaction has stopped before the complete conversion of ZnO particle is obtained. In order to explain the phenomenon, the modified shrinking core model is put forward on the basis of the change of the porosity of solid product layer during the reaction in the present work. The modified shrinking core model was applied to describe the experiment results of the H2S removal reaction with ZnO fine particle. The results calculated by the model equation are in good agreement with the experimental data, and the model parameters such as ks, De0 and alfa at various temperatures were also obtained. The high diffusion activation energy and the maximum conversion of solid reactant in the H2S removal reaction is also explained according to the modified shrinking core model.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - E.G. Wang
AU  - H.X. Guo
PY  - 2016/03
DA  - 2016/03
TI  - Modified Shrinking Core Model for Removal of Hydrogen Sulfide with T302 Desulfurizer
BT  - Proceedings of the 2015 International Conference on Materials Chemistry and Environmental Protection (meep-15)
PB  - Atlantis Press
SP  - 21
EP  - 25
SN  - 2352-541X
UR  - https://doi.org/10.2991/meep-15.2016.6
DO  - 10.2991/meep-15.2016.6
ID  - Wang2016/03
ER  -