AROMATIZATION OF ETHANE OVER MODIFIED PENTASILS

被引：15

作者：

CHETINA, OV

VASINA, TV

LUNIN, VV

BRAGIN, OV

机构：

[1] ND ZELINSKII ORGAN CHEM INST,MOSCOW,USSR

[2] MV LOMONOSOV STATE UNIV,DEPT CHEM,MOSCOW 117234,USSR

来源：

CATALYSIS TODAY | 1992年 / 13卷 / 04期

关键词：

Catalysis - Chromium Compounds - Ethane--Dehydrogenation - Gallium Compounds - Zeolites;

D O I：

10.1016/0920-5861(92)80102-S

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Aromatization of ethane over high silica zeolites modified by Zn, Ga or Pt was studied in the presence of intermetallic hydrogen acceptor Zr2Fe. Elimination of hydrogen formed during the reaction at 500-550-degrees-C by acceptor resulted in 4-6 fold higher aromatics yield, aromatization selectivity reaching 74-90%. In the similar conditions the effect of hydrogen absorption by Zr2Fe on ethane dehydrogenation appeared to be negligible over supported Ga2O3 or Cr2O3 and strongly negative in the case of Pt-containing catalysts. General considerations of the reaction mechanism are discussed.

引用

页码：639 / 643

页数：5