Steam Gasification of Catalytic Pyrolysis Char for Hydrogen-Rich Gas Production

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Steam gasification of biochar from catalytic pyrolysis of biomass was studied in a fixed bed reactor at atmospheric pressure. The experiments were carried out at bed temperature of 700, 750, 800 °C at steam flow rate of 0.1 g/min with reaction time of 3h. The gases produced included mainly H2, CO, CO2 and some small molecular hydrocarbons. The results showed that high gasification temperature was favorable for the production of hydrogen-rich gases. The maximum concentration of hydrogen exceeded 85% at 800 °C and the total gas yield increased with temperature rising. Meanwhile, the conversion efficiency of biochar at 700, 750, 800 °C was 48%, 60%, 72% respectively.

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105-108

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April 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] F. Rosillo-Calle, and J. Woods, The biomass assessment handbook, Routledge, 2012.

Google Scholar

[2] A. Bridgwater, Renewable fuels and chemicals by thermal processing of biomass. Chem. Eng. J. 91 (2003) 87-102.

Google Scholar

[3] E. Butler, G.Devlin, D. Meier and K. McDonnell, A review of recent laboratory research and commercial developments in fast pyrolysis and upgrading. Renew. Sust. Energ. Rev.15 (2011) 4171-4186.

DOI: 10.1016/j.rser.2011.07.035

Google Scholar

[4] D. Mohan, C.U. Pittman Jr and P.H. Steele, Pyrolysis of wood/biomass for bio-oil: Acritical review. Energy Fuels. 20 (2006) 848-889.

DOI: 10.1021/ef0502397

Google Scholar

[5] X. Gao and H. Wu, Biochar as a Fuel: 4. Emission Behavior and Characteristics of PM1 and PM10 from the Combustion of Pulverized Biochar in a Drop-Tube Furnace. Energy Fuels. 25 (2011) 2702-2710.

DOI: 10.1021/ef200296u

Google Scholar

[6] R. Azargohar and A. Dalai, Biochar as a precursor of activated carbon. Springer, (2006) 762-773.

Google Scholar

[7] S. Chaudhari, S. Bej, N. Bakhshi and A. Dalai, Steam gasification of biomass-derived char for the production of carbon monoxide-rich synthesis gas. Energy Fuels. 15 (2001) 736-742.

DOI: 10.1021/ef000278c

Google Scholar

[8] S.Chaudhari, A. Dalai and N. Bakhshi, Production of hydrogen and/or syngas (H2+ CO) via steam gasification of biomass-derived chars. Energy Fuels.17 (2003) 1062-1067.

DOI: 10.1021/ef030017d

Google Scholar

[9] F. Yan, S. Luo, Z. Hu, B. Xiao and G. Cheng, Hydrogen-rich gas production by steam gasification of char from biomass fast pyrolysis in a fixed-bed reactor: Influence of temperature and steam on hydrogen yield and syngas composition. Bioresour. Technol. 101 (2010) 5633-5637.

DOI: 10.1016/j.biortech.2010.02.025

Google Scholar