Synergy effect between Te2MoO7 and MoO3 in partial oxidation of propylene to acrolein

PETR 58

Yiming He, heyiming455@hotmail.com1, Ying Wu, ying-wu@zjnu.cn2, Xiaodong Yi1, Weizheng Weng1, and Huilin Wan1. (1) State Key Laboratory for Physical Chemistry of the Solid Surface, Department of Chemistry and Institute of Physical Chemistry, xiamen, 361005, China, (2) Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinghua, 321004, China
Synergy effect was observed in the selective oxidation of propylene into acrolein, when Te2MoO7 catalyst was mechanical mixed with MoO3. Synergy was observed on the propylene conversion and acrolein yield. XRD analyses performed on samples after test revealed the formation of a low quantity of TeMo5O16. Additional experiments were therefore carried out on the “Mo-Te-O” catalysts in order to shed light on the role of TeMo5O16 in the synergy effect. The experimental results are discussed in terms of several hypotheses. First, the intrinsic activity of TeMo5O16 is probably the simplest explanation for the synergetic effects. Second, catalytic tests made on TeMo5O16+MoO3 mechanical mixtures have evidenced a cooperation between these two oxides, particularly when TeMo5O16 was the minor component of the mixture. Consequently, it is likely that a synergy between MoO3 and the in situ generated TeMo5O16 might also play a role in the synergy observed in the Te2MoO7+MoO3 association.
 

Division of Petroleum Chemistry Poster Session
8:30 AM-10:30 AM, Monday, 11 September 2006 Moscone Center -- Hall D, Poster

Division of Petroleum Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006