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Investigation of Polycyclic Aromatic Hydrocarbons in Fly Ash from Fluidized Bed Combustion Systems
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liu, Kunlei Zhao, Zheng-Bao Pan, Wei-Ping Riley, John Thomas |
| Copyright Year | 2000 |
| Abstract | A laboratory scale fluidized bed reactor and a bench scale 0.1 MWth fluidized bed combustor were used to study the effect of operating conditions on the formation of Polycyclic Aromatic Hydrocarbons (PAHs) in fly ash from fluidized bed combustion systems. A high volatile bituminous coal was chosen to investigate PAH emissions during the entire pyrolysis to oxygen-rich combustion process. During the experiments, the fluidized bed reactor was operated at temperatures between 700 °C and 900 °C, while the excess air ratio was varied from 0 to 1.3. An extraction and GC/MS analysis of PAHs was used in this study. Approximately 40 different PAHs were identified during the tests, of which only a few are specified by the U.S. EPA. The experimental results indicate the majority of the PAHs in the solid phase (bed and fly ash) are derived from the breakdown reactions during the processes of combustion and/or pyrolysis in a Fluidized Bed Combustion (FBC) system, although FBC systems have an efficient solid−gas mixing... |
| Starting Page | 2273 |
| Ending Page | 2279 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/es990944s |
| Alternate Webpage(s) | https://www.wku.edu/icset/publications/w62-2000.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/es990944s |
| Volume Number | 34 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
