𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparation of γ-Al2O3-supported molybdenum oxycarbide catalyst and its HDS activity

✍ Scribed by Quan-li ZHU; Qiu-lin ZHANG; Dong-xian KE; Xiao-bin YANG; Qi-feng CHEN

Publisher
Elsevier
Year
2008
Tongue
Chinese
Weight
190 KB
Volume
36
Category
Article
ISSN
1872-5813

No coin nor oath required. For personal study only.

✦ Synopsis

Investigation into the temperature programmed reduction (TPR) of bulk or γ-Al2O3 supported molybdenum trioxide using n-hexane as a carbon source in hydrogen was carried out. The resulting catalyst was evaluated using dibenzothiophene (DBT) as a model compound for the hydrodesulfurization (HDS). The results show that the utilization of n-hexane can lower the temperature, to fulfill carburization to some extent. For DBT HDS, however, there exists an optimal temperature at which carburization is carried out, leading to a high activity of the resulting catalyst. In these experiments, it has been found that the resulting catalyst exhibits the highest DBT HDS activity if the precursor, MoO3/γ-Al2O3, with 30% theoretic loading, is carburized at 620º C under atmospheric pressure and 0.025 mol ratio of n-hexane to hydrogen in carburizing reagents.

📜 SIMILAR VOLUMES

Preparation of magnetic γ-Al2O3 supporte
Preparation of magnetic γ-Al2O3 supported palladium catalyst for hydrogenation of nitrobenzene
✍ Yuqi Lang; Qiaoqiao Wang; Jianmin Xing; Bo Zhang; Huizhou Liu 📂 Article 📅 2008 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 443 KB

## Abstract Spherical alumina support with magnetic core of 134 nm in diameter was prepared by the controlled hydrolysis of aluminums iso‐propoxide. The magnetite Fe~3~O~4~ nanoparticles were first synthesized by coprecipitation. Later silica film was coated onto the surface of Fe~3~O~4~ nano parti