期刊
JOURNAL OF THE CHILEAN CHEMICAL SOCIETY
卷 60, 期 2, 页码 2931-2934出版社
SOC CHILENA QUIMICA
DOI: 10.4067/S0717-97072015000200015
关键词
Hydrodenitrogenation (HDN); Hydrogenation; Stacked beds; Pyridine
资金
- FONDECYT [1130749]
This study analyses the hydrodenitrogenation (HDN) of pyridine using a stacked bed catalyst system, composed of a first hydrogenating bed of Re/gamma-Al2O3 or W/gamma-Al2O3, over a second bed of Ni-Re/gamma-Al2O3 (HDN bed). Using potentiometric methods, it can be seen that the Re/gamma-Al2O3 shows higher acidic strength than the W/gamma-Al2O3. The results show that higher activity levels are obtained working with stacked bed systems compared to the separate catalysts. These results suggest that the incorporation of the catalyst Re/gamma-Al2O3 or W/gamma-Al2O3 beds would favour the formation of hydrogenated intermediary products, facilitating the removal of N-containing molecules via HDN on the Ni-Re/gamma-Al2O3 catalyst.
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