Continuous hydrogenolysis of glycerol was carried over bimetallic Ni-Ag supported on gamma-Al2O3 catalysts. These catalysts were prepared by co-impregnation method. The catalysts surface and structural properties were derived from CO chemisorption, X-ray diffraction, temperature programmed reduction, temperature programmed desorption of NH3 and X-ray photoelectron spectroscopy. The presence of Ag led to the improvement in the dispersion, metal area and particle size of the Ni. Hydrogenolysis activity of Ni was enhanced by the synergistic effect of Ag. The catalyst with 10% Ni-5% Ag/gamma-Al2O3 gave about 80% of glycerol conversion with 58% selectivity towards 1,2-propanediol. Effect of various reaction parameters on glycerol conversion and selectivity were also investigated and optimum condition were established. The time on stream analysis was carried and the catalysts exhibited stability.