Browse > Article

A Study on the Reactivity of Zinc-based Sorbents Using Yellow Earth as Support at Middle Temperatures  

박노국 (영남대학교 응용화학공학부, 국가지정연구실)
정용화 (영남대학교 응용화학공학부, 국가지정연구실)
이종대 (영남대학교 응용화학공학부, 국가지정연구실)
류시옥 (영남대학교 응용화학공학부, 국가지정연구실)
이태진 (영남대학교 응용화학공학부, 국가지정연구실)
Publication Information
Journal of Energy Engineering / v.12, no.4, 2003 , pp. 302-308 More about this Journal
Abstract
The peformence tests of zinc-based desulfurization sorbents using the yellow earth as support for the hot gas clean up were carried out. The zinc-based sorbent with 25 wt％ yellow earth was prepared, and their properties such as the reaction rate, the sulfur capacity and the attrition resistance, were investigated. The reactivity tests for hot gas desulfurization was performed at middle temperatures (sulfidation/regeneration：480$^{\circ}C$/580$^{\circ}C$). During multi-cyclic desulfurization, the deactivation of zinc-based sorbent was decreased by the addition of yellow earth, and their efficiency was enhanced. The ZnO/yellow earth sorbent had high reactivity, good regenerability, long-term durability (about 19 gS/100 g sorbent for 10-cycles) and high attrition resistance (AI=19.1％). It was concluded that the peroperties of zinc-based sorbent were improved by metal oxides (Fe$_2$O$_3$, Na$_2$O, MnO$_2$, etc) in the yellow earth. From these results, it was confirmed that the desulfurization properties of zinc-based sorbents at middle temperatures could be improved by the yellow earth using as support.
Keywords
Citations & Related Records
연도 인용수 순위
  • Reference
1 박영성, 이영우. 손재익: '석탄가스화 복합발전용 고온건식 탈황기술', 화학공업과 기술, 11(5), 366 (1993)
2 이영우, 손재익: '복합발전용 가압유동층 연소기술', 화학공업과 기술, 13(1), 53 (1995)
3 이영우, 이태진, 이창근: '고온건식탈황용 Zine Titanate 탈황제의 개발동향(I)', 화학공업과 기술, 15(3), 273 (1997)
4 Ayala, R and March, D.W : 'Cheracterization and Long Range Reactivity of Zinc Ferrite in HighTemperature Desulfurization Processes', Ind. Eng. Chern. Res., 30(1), 55 (1991)   DOI
5 임창진, 차영권, 박노국, 류시옥, 이태진, 김재창: '중온용 탈황제 개발을 위한 Zinc Titanate 제조 및 반응특성', 화학공학, 38(1), 111 (2000)
6 Jun, H.K., Lee, TJ. and Kim, J.e.: 'Role of Iron Oxide in Promotion of Zn-Ti-Based Desulfurization Sorbents during Regeneration at Middle Temperatures', Ind. Eng. Chern. Res., 41, 4733 (2002)   DOI   ScienceOn
7 Jun, H.K., Lee, T.J., Ryu, S.O. and Kim, J.C.: 'A Study of Zn-Ti-Based $H_2S$ Removal Sorbents Promoted with Cobalt Oxides', Ind. Eng. Chern. Res., 40, 3547 (2001)   DOI   ScienceOn
8 Gupta, R.P., Gangwal, S.K. and Johnson, E.W.: 'Integration and Testing of Hot Desulfurization and EntrainedFlow Gasification for Power Generation Systems-Volume II. Evaluation of Zinc Loss from Zinc titanate Sorbents During Hot Gas Desulfurization', Topical Report to DOE/METC (1993)
9 Copeland, RJ., Cesario, M., Dubovik, M., Feinberg, D., NacQueen, B., Sibold, J., Windecker, B. and Yang, J.: 'Long Life $ZnO-TiO_2 $ and Novel Sorbent', Proceeding of the Advanced Coal-Fired Power Systems '96 Review Meeting (1996)
10 ASTM D 5757 95
11 Lee, H.S., Kang, M.P., Song, YS., Rhee, Y.W. and Lee, TJ.: 'Chatacteristics of $CuO-Fe_2O_3$ 203 Sorbents', KJChE, 18(5), 635 (2001)
12 Rutkowski, M.D., Klett, M.G. and Zaharchuk, R: 'Assesrnent of Hot Gas Containment Control', Proceeding of the Advanced Coal-Fired Power Systems '96 Review Meeting, METC (1996)
13 Sa, L.N., Focht, G.D., Ranade, P.v. and Harrison, D.P.: 'High-Temperature Desulfurization Using Zinc Ferrite: Solid Structural Property Changes', Chern. Eng. Sci., 44(2), 215 (1989)   DOI   ScienceOn
14 Gibson, J.B. and Herrison, D.P.: 'The Reaction between Hydrogen Sulfide and Spherical Pellets of Zinc Oxide', Ind. Eng. Chern. Pro. Des. Dev., 19, 231 (1980)   DOI
15 Sasaoka, E., Norimasa, S., Akifumi, M. and Yusaku, S.: 'Modification of $ZnO-TiO_2$, High-Temperature Desulfurization Sorbent by $ZrO_2$, Addition', Ind. Eng. Chern. Res., 38, 958 (1999)   DOI   ScienceOn
16 강석찬, 전회권, 이태진, 류시옥, 김재창: '지지체에 따른 아연계 탈황제의 특성', 화학공학, 40(3), 289 (2002)
17 Copeland, R.J., Cesario, M., Dubovik, M., Feinberg, D. and Windecker, B.: 'A Long Life ZnO-TiOSorbent', Proceeding of the Advanced Coal-Fired Power Systems '95 Review Meeting Volume 1, 394 (1995)
18 이창근. 위영호,: 'IGCC를 위한 고온건식탈황기술', 화학공업과 기술, 13(5), 466 (1995)
19 Gupta, RP. and Gangwal, S.K.: 'Enhanced Durability of High-Temperature Desulfurization Sorbents for Fluidized-Bed Applications', Topical Report to DOE/ METC, November (1992)
20 Westmoreland, P.W. and Harrison, D.P.: 'Evalution of Candidate Solid for High Temperature Desulfurization of Low Btu Gases', Env. Sci. Tech., 10, 15 (1976)   DOI
21 Woods, M.E. and Gangwal, S.K.: 'Kinetics of the Reactions of a Zinc Ferrite Sorbent in High-Temperature Coal Gas Desulfurization', Ind. Eng. Chern. Res., 30(1), 100 (1991)   DOI
22 이영우, 이태진, 이창근: '고온건식탈황용 Zine Titanate 탈황제의 개발동향(II)', 화학공업과 기술, 15(4), 342 (1997)