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Utilization of industrial waste electric arc furnace dust as iron oxide sorbent for hydrogen sulfide removal
Author(s) -
Zeng Danlin,
Liu Shenglan,
Wang Guanghui,
Qiu Jianghua,
Chen Hongxiang
Publication year - 2014
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1819
Subject(s) - sorbent , leaching (pedology) , sulfuric acid , flue gas desulfurization , hydrochloric acid , electric arc furnace , chemistry , iron oxide , hydrogen sulfide , sulfur , inorganic chemistry , iron powder , nuclear chemistry , metallurgy , materials science , environmental science , adsorption , organic chemistry , soil science , soil water
ABSTRACT Leaching iron from the electric arc furnace dust by using sulfuric acid to prepare iron oxide sorbent for H 2 S removal was studied in this paper. The influences of sulfuric acid concentration, reaction temperature and the dosage of hydrochloric acid on the iron leaching yield were investigated in the leaching process. The iron oxide sorbent was prepared by the filtrate from the leaching process. The experimental results show that the iron species in the dust were transferred into γ‐Fe 2 O 3 · H 2 O crystal of higher activity for H 2 S removal in the sorbent. The desulfurization test revealed that the breakthrough sulfur capacity of the sorbent is similar to that of the commercial active carbon on the same test conditions. © 2014 Curtin University of Technology and John Wiley & Sons, Ltd.