H2SO4-HI-H2O-I2계의 2 액상 분리특성에 관한 연구(I)

이태천; 정헌도; 김태환; 배기광; Tae-Cheon Lee; Heon-Do Jeong; Tae-Hwan Kim; Gi-gwang Bae

Journal of the Korean Industrial and Engineering Chemistry, Vol.16, No.6, 848-852, December, 2005

Export Citation

H2SO4-HI-H2O-I2계의 2 액상 분리특성에 관한 연구(I)

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

이태천, 정헌도 ¹, 김태환 ^{1, †}, 배기광 ¹

과학기술연합대학원대학교 신에너지기술학과
¹한국에너지기술연구원

Tae-Cheon Lee, Heon-Do Jeong¹, Tae-Hwan Kim^{1, †}, and Gi-gwang Bae¹

Department of Advanced Energy Technology, University of Science and Technology, Daejeon 305-333, Korea
¹Korea Institute of Energy Research, Daejeon 305-343, Korea

E-mail:

초록

Iodine-sulfur 사이클의 연속 공정 운전을 위해서는 분젠반응에서 생성되어진 황산과 요오드화수소의 분리와 일정한 조성을 유지시키는 기술이 필요하다. 그러나 황산과 요오드화수소는 황과 황화수소를 생성시키는 부반응이 일어나므로 부반응을 억제하며 두 개의 산을 분리시키는 기술이 요구된다. 따라서 본 연구는 부반응이 최소화되는 조건에서 2 액상 분리에 관한 물의 영향에 관하여 조사하였다. 물 몰분율이 0.86에서 0.91까지 범위에서 2 액상 분리가 일어나고 물의 증가에 따라 황화수소의 생성이 억제되었으나 물아 몰분율이 0.92 이상에서 2 액상 분리 현상은 관찰되지 않았다.

The two important problems to solve before the industrialization of the iodine-sulfur (IS) process are (i) methods to separate H2SO4 and HI and (ii) to maintain constant components. However undesired reaction was occurred and H2S and S were formed during the Bunsen reaction. It is necessary to forbid the undesired reaction between H2SO4 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. H2S formation was reduced and the separations of the two liquids were occurred at H2O molar fraction from 0.86 to 0.909. But the separations between the two liquids were not occurred at H2O molar fraction more than 0.92.

Keywords:hydrogen production;bunsen reaction;iodine-sulfur cycle;high temperature gas-cooled reactor

[References]

Funk JE, Reinstrom RM, Ind. Eng. Chem. Process Des. Dev., 5, 336 (1966)
EURATOM, JRC Ispra, EUC/C-IS/551/71, e(EUR4776e) (1971)
Russell JL, Proc. 1st World Hydrogen Energy Conf., Miami Beach, Florida, Edited by T. N. Verziroglu, University of Miami, Coral Gables, Florida, 1A-105 (1976)
O'Keefe D, Allen C, Besenbruch L, Brown L, Norman J, Sharp R, Int. J. Hydrog. Energy, 7, 381 (1982)
Onuki K, Nakajima H, Ioka I, Futkawa M, Shimizu S, JAERI-Review 94-006. 9 (1994)
Nakajima H, Ikenoya K, Onuki K, Shimizu S, Kag. Kog. Ronbunshu, 24(2), 352 (1998)
Sakurai M, Nakajima H, Amir R, Onuki K, Int. J. Hydrog. Energy, 25, 613 (2000)
Kumagai T, Okamoto C, Mizuta S, DENKI KAGAKU, 53, 812 (1984)
U. S. Patent, 4,089,940 (1978)

[Related Articles]

[1] Funk JE, Reinstrom RM, Ind. Eng. Chem. Process Des. Dev., 5, 336 (1966)

[2] EURATOM, JRC Ispra, EUC/C-IS/551/71, e(EUR4776e) (1971)

[3] Russell JL, Proc. 1st World Hydrogen Energy Conf., Miami Beach, Florida, Edited by T. N. Verziroglu, University of Miami, Coral Gables, Florida, 1A-105 (1976)

[4] O'Keefe D, Allen C, Besenbruch L, Brown L, Norman J, Sharp R, Int. J. Hydrog. Energy, 7, 381 (1982)

[5] Onuki K, Nakajima H, Ioka I, Futkawa M, Shimizu S, JAERI-Review 94-006. 9 (1994)

[6] Nakajima H, Ikenoya K, Onuki K, Shimizu S, Kag. Kog. Ronbunshu, 24(2), 352 (1998)

[7] Sakurai M, Nakajima H, Amir R, Onuki K, Int. J. Hydrog. Energy, 25, 613 (2000)

[8] Kumagai T, Okamoto C, Mizuta S, DENKI KAGAKU, 53, 812 (1984)

[9] U. S. Patent, 4,089,940 (1978)