Hydrogen-selective zeolite membranes loading with CuOgnO/Al2O3 commercial catalysts were employed for low-temperature water gas shift (LT-WGS) reaction. The membranes were prepared by modifying zeolitic pores of MFI zeolite membranes with catalytic cracking deposition of methyldiethoxysilane. The membranes were tested by the separation of H-2/CO2 mixture, which showed a high H-2/CO2 separation factor of 42.6 with H-2 permeance of 2.82 x 10(-7) mol/m(2) s Pa at 500 degrees C. Both the packed-bed and membrane reactors for LT-WGS were investigated by variation of temperature (T), space velocity (GHSV), steam-to-CO feed ratio (R-H2O/CO) and sweep gas flow rate (F-N2). Significant increment in CO conversion for the membrane reactor was achieved at relatively low temperature, high space velocity and low steam-to-CO ratio due to the large deviation from equilibrium state. High CO conversion of 95.4% was achieved in membrane reactor under the operation conditions (T = 300 degrees C, GHSV = 1500 L-N/kg(cat) h. R-H2O/CO = 1.25 and F-N2 = 20 cm(3) (STP)/min), which was higher than the equilibrium conversion. These results indicated that the membrane reactor had better performance for LT-WGS in eliminating CO. (C) 2012 Elsevier B.V. All rights reserved.