Acta Chimica Sinica ›› 1995, Vol. 53 ›› Issue (9): 878-882. Previous Articles     Next Articles

Original Articles

膜催化研究IV: 钯-氧化铝/陶瓷复合膜

周泊;曹昭;邓景发   

  1. 复旦大学化学系
  • 出版日期:1995-09-15 发布日期:1995-09-15

Studies on membrane catalysis IV. Pd-Al2O3 membrane reactor

ZHOU PO;CAO ZHAO;DENG JINGFA   

  • Online:1995-09-15 Published:1995-09-15

Alumina membrane which included palladium indignent was prepared by the sol-gel method. Dehydrogenation of ethanol to acetaldehyde was carried out in this Pd-Al2O3 membrane reactor; and the yield of acetaldehyde was higher than that in the pure Al2O3 membrane. The average pore diameter of the Pd-Al2O3 membrane was 5-6nm, within the range that a Knudsen process acts. But the separation factor of H2/Ar was higher than Knudsen value, this suggested the increase of the selectivity of permeation of H2. This Pd-Al2O3 membrane was also characterized by XRD and SEM.

Key words: ETHANOL, ALUMINIUM OXIDE, ACETALDEHYDE, X-RAY DIFFRACTION ANALYSIS, DEHYDROGENATION, CERAMICS, SCANNING ELECTRON MICROSCOPES, PALLADIUM, LAMINATED FILMS

CLC Number: