COMPARISON OF CARBON-SUPPORTED AND ALUMINA-SUPPORTED MO, COMO AND NIMO CATALYSTS IN PARALLEL HYDRODENITROGENATION AND HYDRODESULFURIZATION

被引:26
|
作者
VIT, Z
机构
[1] Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences
关键词
HYDRODENITROGENATION; HYDRODESULFURIZATION; CATALYST;
D O I
10.1016/0016-2361(93)90383-D
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The effect of support (alumina, active carbon) and promoter (Co, Ni) on activity and selectivity of Mo catalysts was compared in parallel hydrodenitrogenation-hydrodesulphurization (HDN-HDS) of pyridine and thiophene at 320-degrees-C and 2MPa of hydrogen pressure. Two commercial CoMo/alumina and NiMo/alumina catalysts were included for comparison. The undesirable formation of piperidine was much lower on carbon-supported and unpromoted Mo catalyst than on alumina-supported and Co- or Ni-promoted Mo catalyst. Irrespective of the type of support, the presence of Co or Ni accelerated mainly the HDS reaction; the unpromoted Mo catalysts had therefore better HDN/HDS selectivity than the CoMo and NiMo catalysts.
引用
收藏
页码:105 / 107
页数:3
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