Research of the combined reforming of bio-oil model compound for hydrogen production

摘要

The combination of steam and CO_2 reforming of bio-oil is proposed in this article. The combined reforming can make good use of the advantages of steam reforming and CO_2 reforming. The results indicate that H_2 yield, potential H_2 yield, and H_2/CO were 60.23, 81.97, and 2.77%, respectively, at the condition of 700℃ and bio-oil: CO_2:H_2O = 1:0.5:1.5. Bio-oil:CO_2:H_2O has a significant effect on the H_2 yield, potential H2 yield, and H_2/CO in the process of combined reforming. A different ratio of H_2/CO can be obtained by adjusting the proportion of bio-oil:CO_2:H_2O, which can meet different industry requirements. The results of X-ray diffraction and scanning electron microscope analyses indicate that the catalyst deactivation was the result of a combination of carbon deposition and Ni grain sintering, and the carbon deposition was a main reason for the catalyst deactivation.