Determination of Carbon Monoxide and Carbon Dioxide Emission Rate from Mazut Fuel in Doroud Cement Factory and the Simulation of Carbon Monoxide Dispersion Pattern

Dourod Cement Plant is recognized as one of the pollution sources in Lorestan, Iran. In this plant, due to liquefied petroleum gas (LPG) pressure drop during the winter, mazut fuel is used as kiln fuel. The aims of this study were determination of emission rate (g/s) of carbon dioxide (CO2) and carbon monoxide (CO) and the simulation of CO dispersion in different atmospheric conditions in downwind direction of the plant using SCREEN3.
This was a descriptive-analytical study. The concentrations of CO and CO2 gases were measured using Testo XL350, and then, converted to mass emission rate and compared with the emission standards for electro filter and rotary kiln. The mass emission rate of CO from three stacks in different classes was simulated by SCREEN3 model in the winter.
Findings: The results of this study showed that the emission rate of CO2 was higher than the suggested standards. The maximum concentration of CO in all atmospheric conditions was observed at the distance of 4924 m, equal to 778.81 µg/m3 downwind from the source (Northeast).
The maximum concentration of CO was predicted at a distance of 4924 m from the stack, so this point was selected as the most sensitive point in the surrounding of the cement plant in terms of CO emissions. To control CO2 emission, continuous monitoring, process improvement, and flue gas purification systems are required.