Parametric Analysis of Hydrogen-rich gas from Sawdust Gasification

V.N. Abeenash, E. Natarajan


In the present study the air and steam gasification of biomass to produce hydrogen-rich gas or syngas (H2 and CO) was investigated. The influence of the air and steam on yield and product composition was studied at the temperature range of 600 to 1200°C. The highest amount of hydrogen present during air gasification is 25% with equivalence ratio of 0.3. The addition of steam increases the hydrogen from 25% to 55% in the temperature range of 700 to 8000C. Higher temperature resulted in the formation of high amount of H2 and CO production, higher carbon conversion efficiency and dry gas yield. The Lower Heating Value (LHV) of the gas from the sawdust is higher in steam gasification with 0.2 – 0.4 kg of steam and lower range was observed in air gasification. Steam gasification in the range of 0.2 – 0.4 kg of steam is found to yield high amount of H2 and CO gas at a temperature range of 700 to 800°C.


Air steam gasification, biomass, equivalence ratio, hydrogen rich gas, lower heating value

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