Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition

Quimica nova

Arrúa, Luis¹  Tonelli, Franco¹  Abello, Maria Cristina¹  Gorriz, Osvaldo¹ 

[1] Universidad Nacional de San Luis, San Luis, Argentina

关键词: hydrogen;    methanol;    CO formation.;   

DOI  :  10.1590/S0100-40422011000800007

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Methanol steamreforming reaction was studied over Cu(5 wt.%)/CeO2 with and withoutthe presence of Zn. The Zn addition decreased the Cu+2 reducibilityand increased the oxygen mobility of ceria. The main products were CO2and H2 with small amount of CO. Selectivity to CO decreased withthe Zn addition and it was lower at lower reaction temperatures and lower spacevelocities. At 230 ºC and W/FMeOH = 648 g min mol-1selectivities to H2 and to CO2 were 100% on Zn/Cu/Ce.The catalytic results indicated that CO was mainly a secondary product formedfrom reverse water gas shift reaction.

【 授权许可】

CC BY