Study on Efficient Production of Hydrogen-rich Gas by Steam Gasification of Biomass Waste
A fixed-bed tube furnace was used to convert wood chips into hydrogen-rich gas.The effects of reaction temperature,water injection flow rate and catalyst dosage on gas composition and production were investigated.The experimental results showed that the total gas production and H2 ratio of biomass gasification increased with the increase of reaction temperature,and first increased and then decreased with the increase of water injection flow and catalyst dosage.The optimal conditions for biomass steam gasification were reaction temperature 850℃,water injection flow rate 15 mL/h and feed/catalyst ratio 50%.At this time,the total gas production was 1835.18 mL/gsawdust,and CO was 796.61 mL/gsawdust,accounting for 43.54%.H2 also reached the maximum value of 724.92 mL/gsawdust,accounting for nearly 40%.The research results can provide data support for the efficient conversion of biomass waste to hydrogen-rich gas.
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