当前位置: X-MOL 学术Environ. Technol. Innov. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Promoted adsorption of methyl mercaptan by γ-Al2O3 catalyst loaded with Cu/Mn
Environmental Technology & Innovation ( IF 6.7 ) Pub Date : 2020-12-29 , DOI: 10.1016/j.eti.2020.101349
Honghong Yi , Tao Tao , Shunzheng Zhao , Qingjun Yu , Fengyu Gao , Yuansong Zhou , Xiaolong Tang

This paper describes the effect of loaded metal(including Fe, Cu, Mn, and Co) on catalytic performance of γ-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 γ-Al2O3 can enhance removal effect of CH3SH. CH3SH removal capacity of various metal-reforming catalysts decline as follows: Cu–Mn/γ-Al2O3> Cu–Co/γ-Al2O3 Cu/γ-Al2O3> Cu–Fe/γ-Al2O3> Co/γ-Al2O3> Mn/γ-Al2O3> Fe/γ-Al2O3. Among these samples the γ-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, N2-adsorption/desorption techniques, CO2-TPD and FT-IR. It indicated that CuO was the mainly active ingredient on γ-Al2O3 carrier. Meanwhile, as the second elements, MnOx was in favor of diffusion of CuO on the carrier and improved activity of catalyst.



中文翻译:

促进甲基硫醇的吸附 γ负载Cu / Mn的-Al 2 O 3催化剂

本文描述了负载金属(包括铁,铜,锰和钴)对催化剂催化性能的影响。 γ-Al 2 O 3催化剂,用于去除CH 3 SH。该催化剂通过浸渍法合成,并在室温下用于吸收CH 3 SH。实验研究了组分,负载量和煅烧温度对催化活性的影响。结果表明,金属改性γ-Al 2 O 3可以增强CH 3 SH的去除效果。各种金属重整催化剂对CH 3 SH的去除能力下降如下:Cu–Mn /γ-Al 2 O 3 > Cu–Co /γ-铝2 O3 铜/γ-Al 2 O 3 > Cu–Fe /γ-Al 2 O 3 > Co /γ-Al 2 O 3 > Mn /γ-Al 2 O 3 >铁/γ-Al 2 O 3。在这些样本中γ负载15%Cu和5%Mn的-Al 2 O 3催化剂具有最佳的去除率和稳定性,可以在约85分钟内达到100%的CH 3 SH去除率。通过XRD,N 2吸附/解吸技术,CO 2 -TPD和FT-IR对催化剂进行了表征。表明CuO是铜的主要活性成分。γ-Al 2 O 3载体。同时,作为第二元素,MnOX 有利于CuO在载体上的扩散和提高催化剂的活性。

更新日期:2021-01-02
down
wechat
bug