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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 8, 2002
Accepted November 26, 2002

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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The Removal of Hydrogen Sulfide with Manganic Sorbent in a High-Temperature Fluidized-Bed Reactor

Hyun Tae Jang Sang Bum Kim^1† Dong Sup Doh¹

Department of Chemical Engineering, Hanseo University, Seosan 356-706, Korea ¹Department of Chemical Engineering, Korea University, Seoul 136-701, Korea

Korean Journal of Chemical Engineering, January 2003, 20(1), 116-120(5), 10.1007/BF02697195

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Abstract

The removal of hydrogen sulfide (H2S) from simulated gas was carried out in a batch type fluidized-bed reactor using natural manganese ore (NMO), which consists of several metal oxides (MnOx: 51.85%, FeOy: 3.86%, CaO: 0.11%). The H2S breakthrough curves were obtained by changing temperature, gas velocity, initial H2S concentration, and aspect ratio. Moreover, the effects of the particle size and the particle-mixing fraction on H2S removal were investigated in a binary system of different particle size. From this study, H2S removal efficiency increased with_x000D_ increasing temperature but decreased with increasing excess gas velocity. The breakthrough time for H2S decreased as the gas velocity increased, which leads to reducing gas-solid contacting due to gas bypassing in a fluidized bed reactor. Improvement of H2S removal efficiency in continuous process can be expected from the results of the binary particle system with different size in a batch experiment. The NMO could be considered as a potential sorbent in H2S removal.

Keywords

Hydrogen Sulfide Manganic Sorbent Binary Particle System Fluidized-Bed Reactor

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