Methanol synthesis from CO₂-rich syngas over a ZrO₂ doped CuZnO catalyst

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• 作者：Cheng Yang ; Zhongyi Ma ; Ning Zhao ; Wei Wei ; Tiandou Hu and Yuhan Sun
• 关键词：CuZnO catalyst ; ZrO₂-doped ; CO/CO₂ hydrogenation ; CO₂-rich syngas ; Methanol synthesis
• 刊名：Catalysis Today
• 出版年：2006
• 出版时间：30 June 2006
• 年：2006
• 卷：115
• 期：1-4
• 页码：222-227
• 全文大小：358 K

文摘

ZrO₂-doped CuZnO catalyst prepared by successive-precipitation method was investigated by ICP-AES, BET, TEM, XRD, EXAFS, H₂-TPR and CO/CO₂ hydrogenation. The active phase of copper in CuZnO catalyst prepared by co-precipitation method was well-crystallized. The presence of ZrO₂ led to a high copper dispersion, which was distinctive from CuZnO. Though the activity for carbon monoxide hydrogenation was little lower than that of CuZnO catalyst, ZrO₂-doped CuZnO catalyst showed much higher activity and selectivity towards methanol synthesis from carbon dioxide hydrogenation. Moreover, ZrO₂-doped CuZnO catalyst showed high performance for methanol synthesis from CO₂-rich syngas.