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

Química Nova

Arrúa, Luis¹  Tonelli, Franco¹  Universidad Nacional de San Luis, San Luis, Argentina¹  Abello, Maria Cristina¹  Gorriz, Osvaldo¹ 

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 steam reforming reaction was studied over Cu(5 wt.%)/CeO2 with and without the presence of Zn. The Zn addition decreased the Cu+2 reducibility and increased the oxygen mobility of ceria. The main products were CO2 and H2 with small amount of CO. Selectivity to CO decreased with the Zn addition and it was lower at lower reaction temperatures and lower space velocities. At 230 ºC and W/FMeOH = 648 g min mol-1 selectivities to H2 and to CO2 were 100% on Zn/Cu/Ce. The catalytic results indicated that CO was mainly a secondary product formed from reverse water gas shift reaction.

【 授权许可】

Unknown