In situ IR studies on the mechanism of methanol synthesis from CO/H2 and CO2/H2 over Cu-ZnO-Al2O3 catalyst

被引：24

作者：

Wang, Xiaojuan ^{[1
]}

Zhang, Haipeng ^{[1
]}

Li, Wei ^{[1
]}

机构：

[1] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2010年 / 27卷 / 04期

关键词：

Methanol Synthesis; Mechanism; In Situ; FT-IR; CO HYDROGENATION; CARBON-MONOXIDE; FT-IR; PRESSURE; DIOXIDE; CU/ZNO; ZNO;

D O I：

10.1007/s11814-010-0176-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Methanol synthesis from CO/H-2 and CO2/H-2 was carried out at atmospheric pressure over Cu/ZnO/Al2O3 catalyst. The formation and variation of surface species were recorded by in situ FT-IR spectroscopy. The result revealed that both CO and CO2 can serve as the primary carbon source for methanol synthesis. For CO/H-2 feed gas, only HCOO-Zn was detected; however, for CO2/H-2, both HCOO-Zn and HCOO-Cu were observed, and without CH3O-Cu. HCOO-Zn was the key intermediate. A scheme of methanol synthesis and reverse water-gas shift (RGWS) reaction was proposed.

引用

页码：1093 / 1098

页数：6

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