Preparation of Ni—Mo/γ-Al2O3 Catalysts by Vacuum Impregnation and Their Use for Hydrodesulfurization of Dibenzothiophene


Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

A dual metal Ni—Mo/γ-Al2O3 catalyst was prepared by saturated impregnation and H2 reduction pretreatment on γ-Al2O3 support with Ni as the active component and Mo as the promoter. The support and catalysts were characterized using x-ray diffraction, hydrogen temperature-programmed reduction, and scanning electron microscopy. The catalytic properties for the reaction of dibenzothiophene (DBT) were investigated in a high-pressure reactor. The hydrodesulfurization (HDS) activity was comparable with those of advanced desulfurization catalysts FHUDS-5 and FHUDS-6. The Ni—Mo catalyst had excellent dispersion characteristics on the support. Synergism between Ni and Mo was greatest at a Ni/Mo molar ratio of 2:1. The DBT conversion on Ni—Mo/γ-Al2O3 catalyst reached 100% at a reaction temperature of 300°C, pressure of 4 MPa, and reaction time of 150 min. The Ni—Mo/γ-Al2O3atalyst was significantly more active than the aforementioned two commercial FHUDS catalysts for HDS of DBT.

Sobre autores

Wenjie Lin

School of Chemical Engineering and Light Industry, Guangdong University of Technology

Email: fangyx@gdut.edu.cn
República Popular da China, Guangzhou, Guangdong, 510006

Yanxiong Fang

School of Chemical Engineering and Light Industry, Guangdong University of Technology

Autor responsável pela correspondência
Email: fangyx@gdut.edu.cn
República Popular da China, Guangzhou, Guangdong, 510006

Xiaolu Li

School of Chemical Engineering and Light Industry, Guangdong University of Technology

Email: fangyx@gdut.edu.cn
República Popular da China, Guangzhou, Guangdong, 510006

Yanqiang Zhou

School of Chemical Engineering and Light Industry, Guangdong University of Technology

Email: fangyx@gdut.edu.cn
República Popular da China, Guangzhou, Guangdong, 510006

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML

Declaração de direitos autorais © Springer Science+Business Media, LLC, part of Springer Nature, 2017