Abstract
Biomass has evolves as one of most promising and clean sources of fuel. Biomass gasification is a thermal conversion process which converts solid biomass into syngas which is can be used for various applications including power generation. The choice of gasifying agent air or steam depends on the application of the syngas. India vast amount of the agri-waste residue is generated in agriculture field which can be used for power generation, chemical manufacturing and liquid fuel production using gasification technology. In this study, thermodynamic equilibrium model for biomass gasification is developed to calculate the syngas composition, gas calorific value, effect of temperature, oxygen to biomass ratio, and steam to biomass ratio. Model is solved using ‘Fsolve’ function in MATLAB. Four biomasses wheat straw, paddy straw, rice straw and rice husk from Punjab state in India are studied. Gross calorific value of four biomasses at 1073K and oxygen/biomass=0.45 is in the range 24.0-26.6 kcal/mol. For steam/biomass=0.6 and 1073 K temperature, GCV of four biomasses is in the range 23.7-25.9 kcal/mol.
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