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| Content Provider | Springer Nature Link |
|---|---|
| Author | Li, Xinghua Han, Junzan Duan, Lei |
| Copyright Year | 2017 |
| Abstract | Industrial coal-fired boiler is an important air pollutant emission source in China. The chain-grate boiler is the most extensively used type of industrial coal-fired boiler. An electrical low-pressure impactor, and a Dekati® Low Pressure Impactor were applied to determine mass and number size distributions of PM$_{10}$ at the inlet and the outlet of the particulate emission control devices at six coalfired chain-grate boilers. The mass size distribution of PM$_{10}$ generated from coal-fired chain-grate boilers generally displays a bimodal distribution that contains a submicron mode and a coarse mode. The PM in the submicron mode for burning with raw coal contributes to 33% ± 10 % of PM$_{10}$ emissions, much higher than those for pulverized boilers. And the PM in the submicron mode for burning with briquette contributes up to 86 % of PM$_{10}$ emissions. Multiclones and scrubbers are not efficient for controlling PM10 emission. Their average collection efficiencies for sub-micron particle and super-micron particle are 34% and 78%, respectively. Operating conditions of industrial steam boilers have influence on PM generation. Peak of the submicron mode during normal operation period is larger than the start-up period. |
| Starting Page | 1 |
| Ending Page | 8 |
| Page Count | 8 |
| File Format | |
| ISSN | 20952201 |
| Journal | Frontiers of Environmental Science & Engineering in China |
| Volume Number | 11 |
| Issue Number | 6 |
| e-ISSN | 2095221X |
| Language | English |
| Publisher | Higher Education Press |
| Publisher Date | 2017-07-13 |
| Publisher Institution | Chinese Universities |
| Publisher Place | Beijing |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coal-fired chain-grate boiler PM$_{10}$ Size distribution Particulate emission control devices Size-dependent collection efficiency Environment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Science |
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