SELECTIVE SYNTHESIS OF LIGHT ALKENES FROM CARBON-MONOXIDE AND HYDROGEN ON SILICALITE SUPPORTED IRON-MANGANESE CATALYSTS

被引:10
作者
DAS, D
RAVICHANDRAN, G
CHAKRABARTY, DK
PIRAMANAYAGAM, SN
SHRINGI, SN
机构
[1] INDIAN INST TECHNOL,DEPT CHEM,SOLID STATE LAB,BOMBAY 400076,INDIA
[2] INDIAN INST TECHNOL,DEPT PHYS,BOMBAY 400076,INDIA
关键词
CARBON MONOXIDE HYDROGENATION; FE-MN/SILICALITE; FE-MN/ZSM-5; LIGHT ALKENES;
D O I
10.1016/0926-860X(93)85116-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Iron-manganese catalyst supported on silicalite 1 was prepared by impregnation. The catalyst preparation was followed by X-ray diffraction, temperature-programmed reduction and Mossbauer spectroscopy. Hydrogenation of CO was studied in a high pressure reactor by varying CO:H-2 ratio, temperature, and pressure. The silicalite supported catalyst shows very high selectivity for C-2-C-4 alkenes. When acidic ZSM-5 having the same structure as silicalite 1 was used as the support, the product had very little alkenes. Addition of 0.2% potassium improves the alkene selectivity of the Fe-Mn on the silicalite catalyst.
引用
收藏
页码:73 / 81
页数:9
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