Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (3): 62-65.

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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

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