The characteristics of high temperature air-blown gasification with biomass and coal

High-temperature air gasification may be more attractive than combustion technology for energy recovery. This process was developed to solve problems such as air separation costs for the oxygen blown as gasifying agent for use in distributed power generation from combustible wastes such as wood chips, sawdust, and RPF. The gasification behavior of wood chips and coal were investigated in an air-blown gasifier with air/steam reformer. The air/steam reformer could be used to reduce tar and soot from the gasification reaction and enrich hydrogen concentration. The compositions of H₂ and CO were 5-15% and 10-20%, respectively. Heating values of product gas from wood chips and coal were from 650-1020 kcal/N cu m. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).