Abstract:
Gasification cha racteristic s of sewage sludge under sub and supercritical water in continuous flow reactor was investigated. Sewage sludge (0.1 wt%) was gasified at temperature s ranging from 300 to 550 o C and under constant pressure of 25 MPa with residence time s ranging from 5 30 s. The gas component w as identified and quantified by gas chromatography ( GC), and the amount of total organic carbon ( in the aqueous phase was also determined . The gasification characteristics were compared with our previous work. The gaseous products were mainly composed of H2, CO2, and CH4. The influence of temperature and residence time under sub- and supercritical conditions were examined.