Biomass Gasification – Technology
Biomass gasification is basically conversion of solid fuels (wood/ wood-waste, agricultural residues etc.) into a combustible gas mixture normally called Producer Gas. The process is typically used for various biomass materials and it involves partial combustion of such biomass Partial combustion process occurs when air supply (O2) is less than adequate for the combustion of biomass to be completed.
The Gasifier is essentially a chemical reactor where various complex physical and chemical processes take place. Biomass gets dried, heated, pyrolysed, partially oxidized and reduced in this reactor as it flows through it. Four distinct processes take place in a gasifier:
1. Drying of the fuel.