- Title
- Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts: mechanisms and thermodynamics
- Creator
- Dou, Jinixao; Li, Xianchun; Tahmasebi, Arash; Xu, Jing; Yu, Jianglong
- Relation
- Korean Journal of Chemical Engineering Vol. 32, Issue 11, p. 2227-2235
- Publisher Link
- http://dx.doi.org/10.1007/s11814-015-0059-1
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2015
- Description
- Sulfidation properties of char-supported Fe-Zn-Mo sorbents prepared by ultrasonic impregnation method were investigated during simultaneous removal of H₂S and COS from coke oven gas (COG) using a fixed-bed quartz reactor. Sorbent samples before and after sulfidation were analyzed using X-Ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The experimental results showed that the addition of Mo significantly improved the desulfurization properties (i.e., breakthrough time, sulfur capacity and desulfurization efficiency) of Fe-Zn sorbents. Desulfurization reactions were exothermic and thermodynamically favorable in the temperature range of 200-400 °C. Thermodynamic analysis of the sorbents indicated that higher concentration of H₂S and lower concentration of H₂ favors the reaction of metal oxides with H₂S to form metal sulfides.
- Subject
- coke oven gas; sulfidation; char-supported sorbents; sulfur capacity
- Identifier
- http://hdl.handle.net/1959.13/1334156
- Identifier
- uon:27240
- Identifier
- ISSN:0256-1115
- Language
- eng
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