Mathematical Model for an Area Source and the Point Source in an Urban Area

Within the present research a mathematical modeling is done in order to study the dispersion of nitrous oxide emissions from a single organized sourcea nitric acid plant with 363000 tons per year production capacity in the industrial region of Devnya, Bulgaria. Separate simulations are done for the dispersion of N 2 O emissions without any emission reduction measures being implemented in the plant and for N 2 O emission dispersion with a secondary N 2 O decomposing catalyst being installed under different meteorological conditions. Results indicate that a significant decrease of N 2 O concentration in the ground atmospheric layer is achieved after the implementation of the secondary decomposing catalystover 81 % reduction of the hourly average N 2 O concentration and up to 80 % reduction of the annual average N 2 O concentration is calculated. Dispersion models also indicate that the territorial dispersion of N 2 O emissions is reduced as wellthe area with N 2 O concentration below 200 µg/m 3 is 15 times smaller with a secondary N 2 O decomposing catalyst being installed. Research results provide a tool to assess the decomposing catalyst reduction potential and to predict the impact of N 2 O emissions upon the ambient air quality in the source region. Research results prove that high temperature catalytic reduction of N 2 O emissions from nitric acid production by installing secondary decomposing catalyst is an effective method for N 2 O emission reduction and a tool to combat global warming effect.

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Mathematical Model for an Area Source and the Point Source in an Urban Area

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Cited by 4 publications

References 8 publications

WITHDRAWN: Point source numerical model of primary and secondary pollutants with mesoscale wind and wet deposition

WITHDRAWN: Point source numerical model of primary and secondary pollutants with mesoscale wind and wet deposition

Three-dimensional analytical model for point source with removal mechanisms dry and wet deposition

Dispersion Modeling of Nitrous Oxide Emissions From a Nitric Acid Plant in Devnya Region, Bulgaria

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