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The Study on 2 Liquid Separation Characteristics of H2SO4-HI-H2O-I2 System (I)  

Lee, Tae-Cheon (Department of Advanced Energy Technology, University of Science and Technology)
Jeong, Heon-Do (Korea Institute of Energy Research)
Kim, Tae-Hwan (Korea Institute of Energy Research)
Bae, Gi-Gwang (Korea Institute of Energy Research)
Publication Information
Applied Chemistry for Engineering / v.16, no.6, 2005 , pp. 848-852 More about this Journal
Abstract
The two important problems to solve before the industrialization of the iodine-sulfur (IS) process are (i) methods to separate $H_2SO_4$ and HI and (ii) to maintain constant components. However undesired reaction was occurred and $H_2S$ and S were formed during the Bunsen reaction. It is necessary to forbid the undesired reaction between $H_2SO_4$ and HI by separating the two acids into two different layers. The experimental conditions for the present study was chosen in such a way that to achieve the separation between the two acids and minimize the side reaction. $H_2S$ formation was reduced and the separations of the two liquids were occurred at $H_2O$ molar fraction from 0.86 to 0.909. But the separations between the two liquids were not occurred at $H_2O$ molar fraction more than 0.92.
Keywords
hydrogen production; bunsen reaction; iodine-sulfur cycle; high temperature gas-cooled reactor;
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