Paper Title :Thermochemical Behaviour Of Sewage Sludge During Its Slow Pyrolysis
Author :Tao Kan, Vladimir Strezov, Tim Evans
Article Citation :Tao Kan ,Vladimir Strezov ,Tim Evans ,
(2015 ) " Thermochemical Behaviour Of Sewage Sludge During Its Slow Pyrolysis " ,
International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) ,
pp. 64-67,
Volume-2, Issue-4
Abstract : Abstract- Processing of sewage sludge waste is a major concern in modern societies, and pyrolysis is one of the
technological options that can convert sewage sludge into useful energy and biofuels. The aim of this study was to
investigate the thermochemical behaviour of sewage sludge during its slow pyrolysis from room temperature to 1000°C at a
heating rate of 10°C/min. Thermogravimetric analysis showed that the pyrolysis process of sewage sludge consisted of three
main steps in the respective temperature zones of <180°C, 180–600°C, and >600°C. The most intense mass loss rate
occurred between 210 and 550°C with a maximum peak value of 0.21wt%/°C at 328°C. Computer aided thermal analysis
was applied to determine the specific heat and the reaction heats during pyrolysis of the sewage sludge. Three main reaction
peaks were identified. Gas chromatography results indicated that CO2 and CO were the primary gas species evolved in the
low (<500°C) and high (500–1000°C) temperature ranges, respectively. The yields of solid, liquid and gas products at
500 °C were 55.7, 35.6, and 8.7wt%, respectively. Understanding of the thermochemical behaviour of sewage sludge will
facilitate more elaborate control of sewage sludge pyrolysis to produce energy and biofuels.
IndexTerms- sewage sludge, thermogravimetric analysis, specific heat, pyrolysis
Type : Research paper
Published : Volume-2, Issue-4
DOIONLINE NO - IJAMCE-IRAJ-DOIONLINE-2847
View Here
Copyright: © Institute of Research and Journals
|
|
| |
|
PDF |
| |
Viewed - 64 |
| |
Published on 2015-08-17 |
|