Low temperature oxidative dehydrogenation of propane/ethane on nanosized Ti-Ni-O catalyst

PETR 52

Ying Wu, ying-wu@zjnu.cn1, Yiming He, he_yiming3@sina.com.cn2, Tinghua Wu, thwu@zjnu.cn1, Weizheng Weng2, and Huilin Wan2. (1) Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua, 321004, China, (2) Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surfaces, Institute of Physical Chemistry, Xiamen University, Xiamen, 361005, China
Propene/ethene, one of the most important petrochemical, is currently produced by steam cracking, which is an extremely energy-intensive process. Thus the development of a substitute method for the production of light alkene has become an urgent task. The oxidation dehydrogenation of alkanes to alkenes in the presence of a suitable catalytic material constitutes the most attractive alternative to steam cracking. Nanosized Ti-Ni-O catalysts prepared by a modified sol-gel method have been investigated in the oxidative dehydrogenation of propane/ethane. At lower temperature the higher propene/ethene yield can be obtained on 9.1 wt% Ti-Ni-O catalyst with the higher selectivity. The variation of chemical value of nickel and titanium ion on the surface indicates that there are strong interactions of TiO2 and NiO. The weaker reducibility seems to be responsible enhanced alkene selectivity over Ti-Ni-O catalysts. Therefore, nanosized Ti-Ni-O catalyst is alternative for the alkene synthesis using a low-cost feedstock such as propane/ethane.
 

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