DEHYDROGENATION OF ETHANOL AND CO2-H2 CONVERSION ON NEW COPRECIPITATED CU/CR-AL CATALYSTS

被引：12
|
作者：
KANOUN, N
ASTIER, MP
PAJONK, GM
机构：
[1] UNIV LYON 1, MAT & PROCEDES CATALYT LAB, ISM, 43 BD 11 NOVEMBRE 1918, F-69622 VILLEURBANNE, FRANCE
[2] UNIV SCI & TECHNOL ALGER, ALGIERS, ALGERIA
来源：
JOURNAL OF MOLECULAR CATALYSIS | 1993年 / 79卷 / 1-3期
关键词：
ALUMINA; CHROMIUM; COPPER; DEHYDROGENATION; ETHANOL; METHANOL SYNTHESIS; NITROUS OXIDE TITRATION; STRUCTURE INSENSITIVITY;
D O I：
10.1016/0304-5102(93)85103-Z
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：
Well defined new precursors of Cu-based catalysts were synthesised and characterized by XRD and surface area measurements (BET, N2O decomposition) after reduction at 300-degrees-C in flowing hydrogen. All the reduced catalysts - pure Cu, binary or ternary (Cu/Cr, Cu/Al, Cu/Cr-Al) - were selective towards ethanol dehydrogenation at 190-degrees-C while only the composite catalysts exhibited a selectivity with respect to methanol formation from CO2-H-2 mixtures at 300-degrees-C under a pressure of 32 atm. While both reactions showed structure insensitivity the CO2 conversion involved different types of sites when compared to the ethanol dehydrogenation test.
引用
收藏
页码：217 / 228
页数：12
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