科研之友
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摘要
With five coal-fired power plants serving as objects of study an experimental analysis was conducted of the content of total carbon, elemental carbon and organic carbon in fly ash. On this basis a study has been performed of the correlation of the content of the above items and the adsorption quantity of polycyclic aromatic hydrocarbons (PAHs) in fly ash. Furthermore, also studied was the correlation of PAHs given off by the burned coal and the PAHs in coal located at the furnace front. From the perspective of coal chemistry and coal combustion science discussed and explored was the adsorption reaction mechanism of the PAHs organic pollutants. As a result, proposed was a kind of major mechanism of PAHs formation during the burning of pulverized coal, the so-called adsorption reaction mechanism of unburned carbon particles. It is noted that the carbon in fly ash serves not only as a major adsorption location but also as an important reaction location for PAHs.
- 出版日期2001
- 单位清华大学
