a repository of Hydrogen production from cellulose catalytic gasification on

Catalytic steam gasification of biomass can produce clean and renewable hydrogen. In 14 this study, Ce/Fe bimetallic catalysts were used to promote hydrogen production from 15 cellulose steam catalytic reforming at 500-900 o C. The effect of different Ce/Fe ratios 16 on the catalytic performance of hydrogen production was studied. The distribution of 17 products, gas composition, carbon deposition and the stability of the catalyst were 18 analyzed with variant approaches. The results show that the catalytic performance of 19 the CeO 2 /Fe 2 O 3 catalyst in relation to hydrogen production was much better than pure 20 CeO 2 or Fe 2 O 3 . When the ratio of Ce:Fe was 3:7, the maximum yield of the H 2 was 21 28.58 mmol at 800 o C. CeFeO 3 could be generated at 800 o C or higher temperature 22 after redox reactions without forming CeO 2 /Fe 2 O 3 clathrate. And the existence of CeFeO 3 enhanced the thermal stability of Ce/Fe catalyst. The presence of CeO 2 not only improved the oxidative ability of the iron catalysts, but also was in favour of the 25 oxidation of possible deposited carbon on the surface of the used catalysts. content of be attributed to that CeO 2 prevented the further conversion of oil and the water gas shift. In regard to Fe 2 O 3 addition, the same tendency was showed with that of CeO 2 . The CO content up to 53.07 vol.% at the price of CO 2 diminishing to 10.42 vol.%. The content of H 2 was decreased slightly from 23.07 vol.% to 22.05 vol.%, while the yield of hydrogen increased to 17.30 mmol g -1 cellulose. However, the gas yield under Fe 2 O 3 increased largely to 87.13% which is much higher than that of CeO 2 . It indicated that Fe 2 O 3 performed role in the thermal cracking steam reforming of tar into light

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