Promoted adsorption of methyl mercaptan by γ-Al2O3 catalyst loaded with Cu/Mn

被引：28
作者：
Yi, Honghong [1 ,2 ]
Tao, Tao [1 ]
Zhao, Shunzheng [1 ,2 ]
Yu, Qingjun [1 ,2 ]
Gao, Fengyu [1 ,2 ]
Zhou, Yuansong [1 ,2 ]
Tang, Xiaolong [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China
[2] Beijing Key Lab Resource Oriented Treatment Ind P, Beijing 100083, Peoples R China
来源：
ENVIRONMENTAL TECHNOLOGY & INNOVATION | 2021年 / 21卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
CH3SH; Adsorption; Removal; gamma-Al2O3;
D O I：
10.1016/j.eti.2020.101349
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
This paper describes the effect of loaded metal(including Fe, Cu, Mn, and Co) on catalytic performance of gamma-Al2O3 catalysts for the removal of CH3SH. The catalysts are synthesized by the method of impregnation, and used in room temperature to absorb CH3SH. The experiment investigated the effect of components, loading and calcination temperature for the catalytic activity. The results showed that metal-modified gamma-Al2O3 can enhance removal effect of CH3SH. CH3SH removal capacity of various metal-reforming catalysts decline as follows: Cu-Mn/gamma-Al2O3 > Cu-Co/gamma-Al2O3 approximate to Cu/gamma-Al2O3 > Cu-Fe/gamma-Al2O3 > Co/gamma-Al2O3 > Mn/gamma-Al2O3 > Fe/gamma-Al2O3. Among these samples the gamma-Al2O3 catalyst loaded with 15% Cu and 5% Mn has the best removal rate and stability, which could reach a 100% removal rate of CH3SH in about 85 min. The catalysts were characterized by XRD, N-2-adsorption desorption techniques, CO2-TPD and FT-IR. It indicated that CuO was the mainly active ingredient on gamma-Al2O3 carrier. Meanwhile, as the second elements, MnOx was in favor of diffusion of CuO on the carrier and improved activity of catalyst. (C) 2020 Elsevier B.V. All rights reserved.
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页数：12
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