Marzieh Heidari - Chemical engineering department, Sharif University of technology, Tehran, Iran
Akbar Zamaniyan - Gas department, Research Institute of Petroleum Industry, Tehran, Iran
Aliakbar Safe kordi - Chemical engineering department, Sharif University of technology, Tehran, Iran
Ensieh Ganji Babakhani - Gas department, Research Institute of Petroleum Industry, Tehran, Iran

Asymmetrical thin membrane of (BCYb) was synthesized by liquid-citrate method and the membrane was prepared by pressing followed by sintering. The phase structure of powder was characterized by X-ray diffraction and thermogravimetry (TG). Scanning electron microscopy (SEM) was used to investigate the microstructure of sintered membrane. Hydrogen permeation fluxes (JH2) were measured as a function of temperature and hydrogenpartial pressure (PH2) gradient. The high hydrogen permeation flux of the 1.63 mm BCYb membrane at 900 °C for mixture of 60% H2/He was 0.043 ml/cm2.s.

ceramic membrane, perovskite, hydrogen separation, high temperature