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Submicrometer Particle Formation and Mercury Speciation Under O2−CO2 Coal Combustion
| Content Provider | Semantic Scholar |
|---|---|
| Author | Suriyawong, Achariya Gamble, Michael Lee, Myong Hwa Axelbaum, Richard L. Biswas, Pratim |
| Copyright Year | 2006 |
| Abstract | The characteristics of the submicrometer mode of ash and mercury speciation on combustion of coal in an oxygen−carbon dioxide and air (conventional) system were compared. The experiments were conducted at different O2:CO2 and O2:N2:CO2 mixing ratios. On replacing the nitrogen in air with carbon dioxide, the total mass of the particles in the submicrometer mode (<0.5 μm) of ash was smaller. Correspondingly, the geometric mean size (dpg) of the submicrometer aerosol was smaller by approximately 28%. When the O2:CO2 ratio was increased from 1:4 to 4:4, the geometric mean size of the submicrometer mode increased from 29 to 54 nm because of a faster vaporization rate as a result of a higher coal particle temperature. An increase in the geometric mean size was observed on increasing the N2:CO2 ratio at a fixed O2 concentration because of the same reasons. The shape of the primary particles was spherical in all the tests, indicating that a vapor to particle transformation pathway was prevalent. The ratios of ele... |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/ef060178s |
| Alternate Webpage(s) | http://cccu.wustl.edu/Publications%20list/Submicrometer%20Particle%20Formation%20and%20Mercury%20Speciation%20Under%20O2-CO2%20Coal%20Combustion.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/ef060178s |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
