Sulfur-tolerant bimetallic Pd-Pt catalysts for aromatics saturation

被引：0
|
作者：
Sato, T [1 ]
Yasuda, H [1 ]
Kijima, N [1 ]
Yoshimura, Y [1 ]
机构：
[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan
来源：
PROSPECTS FOR COAL SCIENCE IN THE 21ST CENTURY | 1999年
关键词：
aromatics saturation; Pd-Pt/zeolite catalysts; sulfur-tolerance; nitrogen-tolerance;
D O I：
暂无
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 hydrogenation of tetralin was done over the Pd-Pt(4:1)/USY zeolite catalysts at a hydrogen pressure of 3.9 MPa at 553 K in the presence of dibenzothiophene and/or n-butylamine. The hydrogenation activity, selectivity, and the sulfur tolerance strongly depended on the SiO2/Al2O3 ratio of the USY zeolites. The activity showed a maximum around the SiO2/Al2O3 ratio of 15.0-50. However, sulfur tolerance of these Pd-Pt/USY zeolite catalysts decreased significantly with the coexistence of NH3 with H2S. Compared with the Pd-Pt/USY(SiO2/Al2O3=15.0-50) catalysts, the activity of the Pd-Pt/USY (SiO2/Al2O3=680) catalysts was lower, but nitrogen tolerance was higher due to the decrease in acidity.
引用
收藏
页码：831 / 834
页数：4
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