Char-supported Fe-Zn-Cu sorbent prepared by ultrasonic-assisted impregnation for simultaneous removal of H₂S and COS from coke oven gas

Title: Char-supported Fe-Zn-Cu sorbent prepared by ultrasonic-assisted impregnation for simultaneous removal of H₂S and COS from coke oven gas
Creator: Dou, Jinxiao; Tahmasebi, Arash; Li, Xianchun; Yin, Fengkui; Yu, Jianglong
Relation: Environmental Progress & Sustainable Energy Vol. 35, Issue 2, p. 352-358
Publisher Link: http://dx.doi.org/10.1002/ep.12224
Publisher: John Wiley & Sons
Resource Type: journal article
Date: 2016
Description: Lignite char supported Fe–Zn–Cu sorbents were prepared by ultrasonic-assisted impregnation method for the simultaneous removal of H₂S and COS from coke oven gas (COG). Sulfidation experiments were carried out in a fixed-bed quartz reactor using simulated COG. The results showed that the addition of Cu can significantly increase the sulfidation reactivity of char-supported Fe–Zn sorbents. Char-supported Fe–Zn–Cu sorbents with Fe:Zn:Cu molar ratio of 2:1:0.5 could simultaneously remove H₂S and COS in the temperature range of 200–400°C. The sulfur capacity reached to 17.62 g S per 100 g sorbent at 400°C. The X-ray diffraction (XRD) analysis suggested that the addition of Cu into the Fe–Zn sorbent leads to the formation of composite oxides.
Subject: char-supported Fe–Zn–Cu sorbent; desulfurization activity; sulfur capacity; synergistic effect
Identifier: http://hdl.handle.net/1959.13/1319853
Identifier: uon:23989
Identifier: ISSN:1944-7442
Language: eng
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