中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 62-65.

• 研究论文 • 上一篇    下一篇

改进型甲醇合成催化剂NC208的催化特性

杨意泉, 车长针, 张鸿斌   

  1. 厦门大学化学系固体表面物理化学国家重点实验室, 厦门 361005
  • 收稿日期:1996-10-25 修回日期:1997-04-02 出版日期:1997-06-10 发布日期:1997-06-10

Catalytic Property of Modified Copper-based Catalyst NC208 for Methanol Synthesis

Yang Yiquan, Che Changzhen, Zhang Hongbin   

  1. Department of Chemistry, State Key Laboratory of Physical Chemistry for Solid Surface, Xiamen University, Xiamen 361005
  • Received:1996-10-25 Revised:1997-04-02 Published:1997-06-10 Online:1997-06-10

PDF

381

被引次数

1

摘要： 采用TPD、XRD、BET和H2S中毒试验等方法,对比研究三组份(Cu-Zn-Al)甲醇合成催化剂C207和添加少量金属氧化物的改进型催化剂NC208.结果表明,工作态NC208催化剂表面Cu+/Cu0的比值和价态稳定性大于C207。

关键词: Cu－Zn－Al催化剂, 催化性能, 甲醇, 合成

Abstract: By means of TPD、 XRD、 BET and H2S-resistence test a comparative study of the copper-based catalyst C207 and its modified one(with addition of some metal oxide)NC208 for methanol sunthesis from syngas has been carried out. The results showed that NC208 had an obviously better thermostability and H2S resistance, its optimum working temperature was 240℃, about 10℃ lower than C207s. NC208 had higher Cu+/Cu0 ratio and valency stability. Under the reaction conditions of 5.0 MPa and 210～230℃ the catalytic activity of NC208 was 30% higher than that of C207. Under 10.0 MPa and 2.5%～4.5% CO content in syngas, after heat treatment at 450℃ for 5 h, the conversion of CO was about 7% higher than that on using NC208.

Key words: Cu-Zn-Al catalyst, catalytic property, methanol, synthsis

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