The glycerol steam reforming reaction was studied for selective hydrogen production. The effect of the reaction temperature and of the active phase was evaluated using two catalysts Ce2Zr1.5Co0.5O8-delta (CZCo) and Ce2Zr1.5Co0.47Rh0.07O8-delta (CZCoRh) mixed oxides. For both catalysts the increment of temperature favoured the glycerol conversion into gaseous products. At 650 degrees C, 95% of the thermodynamic H-2 production was obtained (6.1 molH(2) mol(Gly.in)(-1)) using CZCoRh. For the CZCoRh diluted with SiC, the H-2 production increased to 6.7 molH(2) mol(Gly.in)(-1) and remained during 16 h. The blank results showed that 0.5 molH(2) mol(Gly.in)(-1) is formed using the SiC bed alone. (C) 2010 Elsevier B.V. All rights reserved.