Characteristics of hydrogen-rich gas production of biomass gasification with porous ceramic reforming |
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Authors: | Ningbo Gao Aimin Li Cui QuanYi Qu Liaoyuan Mao |
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Affiliation: | School of Environmental Science & Technology, Dalian University of Technology, Key Laboratory of Industrial Ecology and Environmental Engineering, MOE, Dalian, Liaoning 116024, China |
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Abstract: | In the present study, an updraft biomass gasifier combined with a porous ceramic reformer was used to carry out the gasification reforming experiments for hydrogen-rich gas production. The effects of reactor temperature, equivalence ratio (ER) and gasifying agents on the gas yields were investigated. The results indicated that the ratio of CO/CO2 presented a clear increasing trend, and hydrogen yield increased from 33.17 to 44.26 g H2/kg biomass with the reactor temperature increase, The H2 concentration of production gas in oxygen gasification (oxygen as gasifying agent) was much higher than that in air gasification (air as gasifying agent). The ER values at maximum gas yield were found at ER = 0.22 in air gasification and at 0.05 in oxygen gasification, respectively. The hydrogen yields in air and oxygen gasification varied in the range of 25.05–29.58 and 25.68–51.29 g H2/kg biomass, respectively. Isothermal standard reduced time plots (RTPs) were employed to determine the best-fit kinetic model of large weight biomass air gasification isothermal thermogravimetric, and the relevant kinetic parameters corresponding to the air gasification were evaluated by isothermal kinetic analysis. |
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Keywords: | Biomass Hydrogen production Gasification Kinetics |
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