Biomass gasification is basically conversion of solid Biomass (Wood, agriculture residues etc.) in to a combustible gas mixture normally called “Producer Gas” (or low Btu gas). The process involves partial combustion of Biomass. Partial combustion is carried out in absence of air or less air than the stroichiometric requirement of air for complete combustion Partial combustion produces Carbon Monoxide (CO) as well as hydrogen (H2) which are both combustible gas. Solid Biomass fuels, which are usually inconvenient and have low efficiency of utilization can thus be converted in to a high quality gaseous fuel with associated convenience etc.