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Application of supported Cu–Ru catalysts for the removal of trace olefins in aromatics

Published online by Cambridge University Press:  25 October 2022

Xiao Liang ,
Naiwang Liu Open the ORCID record for Naiwang Liu [Opens in a new window] ,
Li Shi  and
Xuan Meng
Xiao Liang
Affiliation:
East China University of Science and Technology, Shanghai 200237, China
Naiwang Liu*
Affiliation:
East China University of Science and Technology, Shanghai 200237, China
Li Shi
Affiliation:
East China University of Science and Technology, Shanghai 200237, China
Xuan Meng
Affiliation:
East China University of Science and Technology, Shanghai 200237, China
*
*Email: liunw@ecust.edu.cn
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Abstract

Exploring reliable hydrogenation catalysts to remove trace olefins in aromatic hydrocarbons through hydrogenation is an important topic. In this paper, a bimetallic Cu–Ru/montmorillonite (Cu–Ru/M) catalyst was prepared using a step-by-step impregnation method, and the effects of bimetallic catalysts on removing olefins were assessed. The catalysts were characterized using X-ray diffraction, Brunauer–Emmett–Teller specific surface area, inductively coupled plasma atomic emission spectrometry, high-resolution transmission electron microscopy and temperature-programmed reduction of H2. The results show that there is a strong interaction between Cu and Ru on the Cu–Ru/M catalyst, which improves the dispersion of the metals on the surface of the support M. The hydrogen spillover phenomenon of Cu–Ru/M enhances its activity and adsorption capacity for hydrogen species. The catalytic performance test confirmed that the bimetallic catalyst has significantly greater activity and stability. The optimal loadings are 5% copper and 1% ruthenium, and the performance of this catalyst is comparable to those of noble-metal Pt/M catalysts.

Keywords

bimetalhydrogenationmontmorilloniteolefinssynergy
Type
Article
Information
Clay Minerals , Volume 57 , Issue 2 , June 2022 , pp. 77 - 86
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland

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Footnotes

Associate Editor: Huaming Yang

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