Abstract
Field measurements have shown that gas-to-particle conversion as well as heterogeneous reactions can be an important source of secondary sulfate aerosol in power plant plumes. Especially for high humidity conditions when plumes are mixed with clouds the measured rate of SO2 removal in the plume can exceed 5–7% which can only be explained by heterogeneous SO2-oxidation on Water containing fly ash particles or by H2O2 reactions.
A three-dimensional stationary numerical model is used to simulate the process of sulfate particle formation by heterogeneous reactions in humid atmosphere. This formation process on wet fly ash particles is parameterized and based on data of experimental studies in a 4 m3 smog chamber. The sulfate formation on particles is limited by the sulfate formation itself, the pH-value and the relative humidity. Calculations are performed for plumes of coal fired power plants under different metereological conditions.
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References
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© 1988 Kluwer Academic Publishers
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Jordan, S., Nester, K. (1988). The Importance of Heterogeneous Reasons for the Sulfate Formation in Plumes. In: Grefen, K., Löbel, J. (eds) Environmental Meteorology. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2939-5_13
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DOI: https://doi.org/10.1007/978-94-009-2939-5_13
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7823-8
Online ISBN: 978-94-009-2939-5
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