Reaction Mechanism of Simultaneous Removal of H2S and PH3 Using Modified Manganese Slag Slurry

被引：12
作者：
Bao, Jiacheng [1 ]
Wang, Xialing [1 ]
Li, Kai [1 ]
Wang, Fei [1 ]
Wang, Chi [2 ]
Song, Xin [1 ]
Sun, Xin [1 ]
Ning, Ping [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Environm Sci & Engn, Kunming 650500, Yunnan, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Chem Engn, Kunming 650500, Yunnan, Peoples R China
来源：
CATALYSTS | 2020年 / 10卷 / 12期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
phosphine; hydrogen sulfide; manganese slag; metal ions; reaction mechanism; HYDROGEN-SULFIDE; ABSORPTION; ADSORPTION; SULFUR; STEEL; XPS;
D O I：
10.3390/catal10121384
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The presence of phosphine (PH3) and hydrogen sulfide (H2S) in industrial tail gas results in the difficulty of secondary utilization. Using waste solid as a wet absorbent to purify the H2S and PH3 is an attractive strategy with the achievement of "waste controlled by waste". In this study, the reaction mechanism of simultaneously removing H2S and PH3 by modified manganese slag slurry was investigated. Through the acid leaching method for raw manganese slag and the solid-liquid separation subsequently, the liquid-phase part has a critical influence on removing H2S and PH3. Furthermore, simulation experiments using metal ions for modified manganese slag slurry were carried out to investigate the effect of varied metal ions on the removal of H2S and PH3. The results showed that Cu2+ and Al3+ have a promoting effect on H2S and PH3 conversion. In addition, the Cu2+ has liquid-phase catalytic oxidation for H2S and PH3 through the conversion of Cu(II) to Cu(I).
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页码：1 / 12
页数：12
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