고온에서 황화수소 제거를 위한 고정층 반응기의 연구

최용진; 이영수; 김희택; 류경옥

HWAHAK KONGHAK, Vol.30, No.4, 433-439, August, 1992

A Study on Fixed-Bed Reactor for High Temperature Removal of Hydrogen Sulfide-Effect of Packing Height, Particle Size of Sorbent and Fe₂O₃ Additive-

최용진, 이영수, 김희택, 류경옥

초록

고정층 반응기의 충전층의 높이, 흡착제의 크기 및 Fe₂O₃의 첨가효과가 ZnO-5at.% Fe₂O₃ 흡착제의 황화수소 제거능에 미치는 영향을 고찰하였다. 충전층의 높이가 전체 반응기 높이의 1/5 이상일 경우 효율면에서 효과적이며 흡착제는 입자경이 클수록 비교적 좋은 황화수소 제거능을 나타냈다. Fe₂O₃의 첨가가 반응으로 인한 구조적 변화를 방지하는 효과가 있음을 알 수 있었으며 반응 후의 SEM 사진으로 이를 확인할 수 있었다. 아울러 반응으로 인한 구조적 변화 방지를 위해서는 불활성 물질을 물리적으로 혼합하는 것보다 Fe₂O₃를 첨가한 복합금속 산화물 흡착제가 좋은 효과를 나타내었다.

Effects of packing height of fixed-bed reactor, particle size of sorbent and Fe₂O₃ additive on the H₂S removal efficiency of ZnO-5at.% Fe₂O₃ sorbent were investigated. Experimental results showed that the H₂S removal effeciency was optimal when the packing height was above about one-fifth of the reactor height and that the larger particle size, the better the H₂S removal efficiency. We found that Fe₂O₃ additives inhibited the structural change due to reaction and the SEM photographs supported this phenomenon. Further-more, the effect of mixing of inert material(quartz) to prevent the structural changes was studied. It was revealed that mixed metal oxide sorbent was better than ZnO mixed with inert material for the prevention of structural changes.

[References]

Reeve L, J. Inst. Fuel, 31, 319 (1958)
Bureau AC, Olden MJF, Chem. Eng., 49, 55 (1967)
Philipson JJ, "Desulfurization in Catalyst Handbook," Wolf, London, England (1970)
Curran GP, Clancey JT, Pasek B, Pell M, Rutledge GD, Gorin EP, Final Report, EPA Contract No. EHSD 71-15 (1973)
Gibson JB, Harrison DP, Ind. Eng. Chem. Process Des. Dev., 19, 231 (1980)
Tamhankar SS, Wen CY, Chem. Eng. Sci., 36, 1181 (1981)
Won S, Sohn HY, Metal. Trans. B, 16B, 163 (1985)
Tamhankar SS, Bagajewiz M, Gavalas GR, Ind. Eng. Chem. Process Des. Dev., 25, 429 (1986)
Yoo KO, Research Institute of Industrial Science H.Y. Univ., Research Reports, 25, 1023 (1987)
Rajaiah J, Dandekar H, Puszynsky J, Degreve J, Hlavacek V, Ind. Eng. Chem. Res., 27, 513 (1988)
Lew S, Jothimurugesan K, Stephanopoulos MF, Ind. Eng. Chem. Res., 28, 5 (1989)
Sa LN, Focht GD, Ranade PV, Harrison DP, Chem. Eng. Sci., 44(2), 215 (1989)
Patrick V, Gavalas GR, Stephanopoulos MF, Jothimurugesan K, Ind. Eng. Chem. Res., 28, 931 (1989)
Kim JS, "The Reaction Kinetics Between Zinc Ferrite and Hydrogen Sulfide," Master Thesis (1989)
Lee YS, Yoo KO, Gavalas GR, Korean J. Chem. Eng., 8(4), 214 (1991)
Fogler HS, "Elements of Chemical Reaction Engineering," Presentice-Hall, p. 531, New Jersey (1986)
Milne CR, Silcox GD, Pershing DW, Ind. Eng. Chem. Res., 29, 139 (1990)
Stroch F, Balakotaiah V, AIChE J., 37(7), 1035 (1991)
Prasannan PC, Ramachandran PA, Doraiswamy LK, Chem. Eng. Sci., 40(7), 1251 (1987)

[Referenced By]

[1] Reeve L, J. Inst. Fuel, 31, 319 (1958)

[2] Bureau AC, Olden MJF, Chem. Eng., 49, 55 (1967)

[3] Philipson JJ, "Desulfurization in Catalyst Handbook," Wolf, London, England (1970)

[4] Curran GP, Clancey JT, Pasek B, Pell M, Rutledge GD, Gorin EP, Final Report, EPA Contract No. EHSD 71-15 (1973)

[5] Gibson JB, Harrison DP, Ind. Eng. Chem. Process Des. Dev., 19, 231 (1980)

[6] Tamhankar SS, Wen CY, Chem. Eng. Sci., 36, 1181 (1981)

[7] Won S, Sohn HY, Metal. Trans. B, 16B, 163 (1985)

[8] Tamhankar SS, Bagajewiz M, Gavalas GR, Ind. Eng. Chem. Process Des. Dev., 25, 429 (1986)

[9] Yoo KO, Research Institute of Industrial Science H.Y. Univ., Research Reports, 25, 1023 (1987)

[10] Rajaiah J, Dandekar H, Puszynsky J, Degreve J, Hlavacek V, Ind. Eng. Chem. Res., 27, 513 (1988)

[11] Lew S, Jothimurugesan K, Stephanopoulos MF, Ind. Eng. Chem. Res., 28, 5 (1989)

[12] Sa LN, Focht GD, Ranade PV, Harrison DP, Chem. Eng. Sci., 44(2), 215 (1989)

[13] Patrick V, Gavalas GR, Stephanopoulos MF, Jothimurugesan K, Ind. Eng. Chem. Res., 28, 931 (1989)

[14] Kim JS, "The Reaction Kinetics Between Zinc Ferrite and Hydrogen Sulfide," Master Thesis (1989)

[15] Lee YS, Yoo KO, Gavalas GR, Korean J. Chem. Eng., 8(4), 214 (1991)

[16] Fogler HS, "Elements of Chemical Reaction Engineering," Presentice-Hall, p. 531, New Jersey (1986)

[17] Milne CR, Silcox GD, Pershing DW, Ind. Eng. Chem. Res., 29, 139 (1990)

[18] Stroch F, Balakotaiah V, AIChE J., 37(7), 1035 (1991)

[19] Prasannan PC, Ramachandran PA, Doraiswamy LK, Chem. Eng. Sci., 40(7), 1251 (1987)