Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7061883 | Thermochimica Acta | 2018 | 31 Pages |
Abstract
Combustion of heavy oil fly ash (HOFA) blended with municipal sewage sludge (MSS) in existing infrastructures may be a sustainable waste management strategy. In this work, the co-combustion of HOFA and MSS with mass ratios from 80/20 to 60/40 is investigated by TGA-FTIR to identify the thermal behaviors (combustion process, ignition and burnout characteristics) and gaseous emissions. Results indicate that co-combustion of HOFA and MSS is better than mono-combustion. MSS induces lower ignition temperatures of the blends, while HOFA tends to decrease the burnout temperatures. The ignition and comprehensive combustibility indices reach the maximum (1.78â¯Ãâ¯10â5 % minâ1 Kâ2, 2.66â¯Ãâ¯10â8 %2 minâ2 Kâ3) in the mixture with HOFA/MSS ratio of 80/20. The co-combustion characteristics of blends are synergistically influenced by HOFA and MSS. Moreover, the CaO originated from MSS contributes to the desulfurization effect to retain the SO2 emission.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Xiangguo Li, Wenjuan Miao, Yang Lv, Yingbin Wang, Changsheng Gao, Dongbing Jiang,