Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts: mechanisms and thermodynamics

Jinxiao Dou; Xianchun Li; Arash Tahmasebi; Jing Xu; Jianglong Yu

doi:10.1007/s11814-015-0059-1

Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts: mechanisms and thermodynamics

Jinxiao Dou
, Xianchun Li
, Arash Tahmasebi
, Jing Xu
, Jianglong Yu

Research output: Contribution to journal › Article › Research › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2227-2235
Number of pages	9
Journal	Korean Journal of Chemical Engineering
Volume	32
Issue number	11
DOIs	https://doi.org/10.1007/s11814-015-0059-1
Publication status	Published - 17 Aug 2015
Externally published	Yes

Keywords

Char-supported Sorbents
Coke Oven Gas
Sulfidation
Sulfur Capacity

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10.1007/s11814-015-0059-1

Cite this

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title = "Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts: mechanisms and thermodynamics",

abstract = "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.",

keywords = "Char-supported Sorbents, Coke Oven Gas, Sulfidation, Sulfur Capacity",

author = "Jinxiao Dou and Xianchun Li and Arash Tahmasebi and Jing Xu and Jianglong Yu",

note = "Publisher Copyright: {\textcopyright} 2015, Korean Institute of Chemical Engineers, Seoul, Korea.",

year = "2015",

month = aug,

day = "17",

doi = "10.1007/s11814-015-0059-1",

language = "English",

volume = "32",

pages = "2227--2235",

journal = "Korean Journal of Chemical Engineering",

issn = "0256-1115",

publisher = "Springer-Verlag London Ltd.",

number = "11",

}

TY - JOUR

T1 - Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts

T2 - mechanisms and thermodynamics

AU - Dou, Jinxiao

AU - Li, Xianchun

AU - Tahmasebi, Arash

AU - Xu, Jing

AU - Yu, Jianglong

PY - 2015/8/17

Y1 - 2015/8/17

N2 - 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.

AB - 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.

KW - Char-supported Sorbents

KW - Coke Oven Gas

KW - Sulfidation

KW - Sulfur Capacity

UR - https://www.scopus.com/pages/publications/84946495818

U2 - 10.1007/s11814-015-0059-1

DO - 10.1007/s11814-015-0059-1

M3 - Article

AN - SCOPUS:84946495818

SN - 0256-1115

VL - 32

SP - 2227

EP - 2235

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

IS - 11

ER -

Desulfurization of coke oven gas using char-supported Fe-Zn-Mo catalysts: mechanisms and thermodynamics

Abstract

Keywords

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