H<sub>2</sub>S 제거를 위한 철광석계 탈황제에 대한 첨가물 효과

김희택; 오영준; 이해평; Hee Taik Kim; Young Jun Oh; Hae Pyeon Lee

Journal of the Korean Industrial and Engineering Chemistry, Vol.15, No.4, 407-416, June, 2004

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H₂S 제거를 위한 철광석계 탈황제에 대한 첨가물 효과

Effect of Additives for the Removal of H₂S by Iron-based Sorbents

김희택 , 오영준, 이해평 ^{1, †}

한양대학교 화학공학과, 경기 426-731
¹삼척대학교 소방방재학부, 강원 245-711

Hee Taik Kim , Young Jun Oh, and Hae Pyeon Lee^{1, †}

Department of Chemical Engineering, Hanyang University, Kyeonggi 426-731, Korea
¹School of Fire & Disaster Prevention, Samcheok National University, Gangwon 245-711, Korea

E-mail:

초록

Integrated Gasification Combined Cycle (IGCC)의 합성가스 중에 있는 H₂S를 제거하기 위해서 고정층 반응기를 이용하여 400 ~ 600 ℃의 온도 구간에서 철광석계 탈황제의 H₂S 흡수능을 고찰하였다. 제조한 탈황제의 특성을 분석하기 위해서 XRD, SEM, TGA, BET 표면적, 수은세공측정 등을 수행하였다. H₂S 흡수능은 탈황반응의 온도가 증가함에 따라 증가하였지만 600 ℃ 이상의 온도에서는 탈황제의 열적불안정성에 기인하여 감소하였다. Sb₂O₃와 NiO의 첨가물 효과를 살펴본 결과, Sb₂O₃를 첨가한 탈황제의 흡수능이 우수한 것으로 나타났으며, Sb₂O₃의 최적 함량은 Sb₂O₃/철광석의 중량비가 0.03 정도임을 확인할 수 있었다.

To reduce H₂S in the gas stream of IGCC process, the H₂S sorption capacities of iron-based sorbents were examined at the temperature range of 400 ~ 600 ℃ in a lab scale fixed-bed reactor. The prepared sorbents were characterized by XRD, SEM, TGA, BET and mercury porosimetry. The H₂S sorption capacities of sorbents increased with the temperature of sulfidation reaction but decreased above 600 ℃ due to the instability of sorbents. The effect of additives such as Sb₂O₃ and NiO were investigated. Among them Sb₂O₃ additive showed relatively higher H₂S sorption capacity. The optimum weight ratio of Sb₂O₃/iron ore turned out to be about 0.03.

Keywords:H₂S;IGCC;sorbent;iron oxide;antimony oxide

[References]

Wakker JP, Gerritsen AW, Moulijn JA, Ind. Eng. Chem. Res., 32(1), 139 (1993)
Wi YH, Choi M, Park SJ, Rhu CK, Lee JB, J. Korean Ind. Eng. Chem., 14(5), 556 (2003)
Christoforou SC, Efthimiadis EA, Vasalos IA, Ind. Eng. Chem. Res., 34(1), 83 (1995)
Sick G, Schwerdtfeger K, Metallurgical Transactions B, 18B, 603 (1987)
Lee YS, Kim HT, Yoo KO, Ind. Eng. Chem. Res., 34(4), 1181 (1995)
Kang SH, Rhee YW, Kang Y, Han KH, Yi CK, Jin GT, Son JE, Park YS, Energy Eng. J., 5(2), 123 (1996)
Tamhankar SS, Wen CY, High-Temperature Hydrogen Sulfide Removal Using a Regenerable Iron Oxide Sorbent, American Chemical Society Symposium Series, 223, 255 (1983)
Patrick V, Gavalas GR, Sharma PK, Ind. Eng. Chem. Res., 32(3), 519 (1993)
Li KT, Yen CS, Shyu NS, Appl. Catal. A: Gen., 156(1), 117 (1997)
Pham-Huu C, Estournes C, Heinrich B, Ledoux MJ, J. Chem. Soc.-Faraday Trans., 94(3), 435 (1998)
Lee SO, Kim SK, Oh JK, Shin BS, J. Miner. Energy Resources, 35(6), 520 (1998)
Lee YS, Kim DS, Kim KH, Kim HT, Yoo KO, Korean J. Chem. Eng., 13(4), 427 (1996)
Villa PL, Carbucicchio M, Pessot R, Rateo M, Hyperfine Int., 116, 137 (1998)
Weng LT, Delmon B, Appl. Catal. A: Gen., 81, 141 (1992)
Karroua M, Matralis H, Sham E, Grange P, Delmon B, Bull. Chem. Soc. Jpn., 68, 107 (1995)
Bowker M, Bicknell CR, Kerwin P, Appl. Catal. A: Gen., 136(2), 205 (1996)
Pham-Huu C, Crouzet C, Estournes C, Ledoux MJ, J. Chem. Soc.-Faraday Trans., 94(3), 443 (1998)

[Related Articles]

[1] Wakker JP, Gerritsen AW, Moulijn JA, Ind. Eng. Chem. Res., 32(1), 139 (1993)

[2] Wi YH, Choi M, Park SJ, Rhu CK, Lee JB, J. Korean Ind. Eng. Chem., 14(5), 556 (2003)

[3] Christoforou SC, Efthimiadis EA, Vasalos IA, Ind. Eng. Chem. Res., 34(1), 83 (1995)

[4] Sick G, Schwerdtfeger K, Metallurgical Transactions B, 18B, 603 (1987)

[5] Lee YS, Kim HT, Yoo KO, Ind. Eng. Chem. Res., 34(4), 1181 (1995)

[6] Kang SH, Rhee YW, Kang Y, Han KH, Yi CK, Jin GT, Son JE, Park YS, Energy Eng. J., 5(2), 123 (1996)

[7] Tamhankar SS, Wen CY, High-Temperature Hydrogen Sulfide Removal Using a Regenerable Iron Oxide Sorbent, American Chemical Society Symposium Series, 223, 255 (1983)

[8] Patrick V, Gavalas GR, Sharma PK, Ind. Eng. Chem. Res., 32(3), 519 (1993)

[9] Li KT, Yen CS, Shyu NS, Appl. Catal. A: Gen., 156(1), 117 (1997)

[10] Pham-Huu C, Estournes C, Heinrich B, Ledoux MJ, J. Chem. Soc.-Faraday Trans., 94(3), 435 (1998)

[11] Lee SO, Kim SK, Oh JK, Shin BS, J. Miner. Energy Resources, 35(6), 520 (1998)

[12] Lee YS, Kim DS, Kim KH, Kim HT, Yoo KO, Korean J. Chem. Eng., 13(4), 427 (1996)

[13] Villa PL, Carbucicchio M, Pessot R, Rateo M, Hyperfine Int., 116, 137 (1998)

[14] Weng LT, Delmon B, Appl. Catal. A: Gen., 81, 141 (1992)

[15] Karroua M, Matralis H, Sham E, Grange P, Delmon B, Bull. Chem. Soc. Jpn., 68, 107 (1995)

[16] Bowker M, Bicknell CR, Kerwin P, Appl. Catal. A: Gen., 136(2), 205 (1996)

[17] Pham-Huu C, Crouzet C, Estournes C, Ledoux MJ, J. Chem. Soc.-Faraday Trans., 94(3), 443 (1998)