Browse > Article

Reactivities of $Li_2ZrO_3/$honeycomb for $H_2S$ Removal  

Park, Joo-Won (Department of Chemical Engineering, Kwangwoon University)
Kang, Dong-Hwan (Department of Chemical Engineering, Kwangwoon University)
Lee, Bong-Han (Department of Chemical Engineering, Kwangwoon University)
Yoo, Kyung-Seun (Department of Environmental Engineering, Kwangwoon University)
Lee, Jae-Gu (Korea Institute of Energy Research)
Kim, Jae-Ho (Korea Institute of Energy Research)
Han, Choon (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Abstract
[ $H_2S$ ] removal reaction using $Li_2ZrO_3/honeycomb$ has been carried out in a fixed bed reactor for the cleaning of syngas from the waste gasifier. $Li_2ZrO_3$ was synthesised using reagent-grade $Li_3CO_3$ and $ZrO_2$ with suitable amount of ethanol in a 1:1 ratio. And then $Li_2ZrO_3$ were calcined in air at $850{\sim}1000^{\circ}C$ for 14 h. The optimum condition of $H_2S$ removal reaction is around 20 wt% $Li_2ZrO_3$/honeycomb at 300 mL/min and $700^{\circ}C$. At this condition, removal amount of $H_2S$ was about 0.337 $g^{H_2S}/g^{sorbent}$. Addition of $K_2CO_3$, $Na_2CO_3$, NaCl and LiCl in the $Li_2ZrO_3$ remarkably improves the $H_2S$ removal capacity of modified $Li_2ZrO_3$/honeycomb up to 23%. Analyses of $Li_2ZrO_3/honeycomb$ sorbent by SEM and XRD showed that $Li_2ZrO_3$ was uniformly impregnated into honeycomb up to considerable amounts. Furthermore, the physicochemical properties of the sorbent did not vary much up to $1000^{\circ}C$.
Keywords
$H_2S$ Removal; $Li_2ZrO_3$; Adsorption; Honeycomb;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Synthesis and <TEX>$CO_2$</TEX> sorption properties of pure and modified lithium zirconate /
[ Ida, J.I.;Xiong, R.;Lin, Y.S. ] / Separation and Purification Technology
2 Kinetics of carbon dioxide sorption on potassium-doped lithium zirconate /
[ Xiong, R.;Ida, J.;Lin, Y.S. ] / Chemical Engineering Science
3 Mechanism of high-temperature <TEX>$CO_2$</TEX> sorption on lithium zirconate /
[ Ida, J.I.;Lin, Y.S. ] / Environ. Sci. Technol.
4 High temperature <TEX>$CO_2$</TEX> absorption using lithium zirconate powder /
[ Nakagawa, K.;Ohashi, T. ] / Proceedings-Electrochemical Society
5 Characteristics of regeneration and H2S removal during desulfurization -regeneration cycles using honeycomb type iron oxide sorbent in simulated hot coal gas /
[ Shirai, H. ] / Kagaku Kogaku Ronbunshu
6 A study on the simulation of high-temperature desulfurization process in a fixed-bed reactor /
[ Shin, B.S.;Yoon, Y.I.;Kim, S.H. ] / Hwahak Konghak
7 Supported honeycomb monolith catalysts for high-temperature ammonia decomposition and <TEX>$H_2S$</TEX> removal /
[ Ismagilov, Z.R.;Shkrabina, R.A.;Yashnik, S.A.;Shikina, N.V.;Andrievskaya, I.P.;Khairulin, S.R.;Ushakov, V.A.;Moulijn, J.A.;Babich, I.V. ] / Catalysis Today
8 Performance of zinc oxide based sorbents for hot coal gas desulfurization in multicycle tests in a fixed-bed reactor /
[ Pineda, M.;Palacios, J.M.;Alonso, L.;Garcia, E.;Moliner, R. ] / Fuel