Calculation method for absorption efficiency of exhaust gas absorption tower
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Gentlemen, my factory is about to undergo an environmental impact assessment, and they require an estimation of the absorption efficiency of the exhaust gas absorption tower. Does anyone have any proven experience or calculation methods for this? Help please
Just considering the absorption tower? The entire device should be taken into consideration; generally, it is calculated based on the removal rate of pollutants (in mass ratio or molar ratio)
Based on the removal rate of pollutants (mass ratio or molar ratio)? How to calculate it? Please advise. We are a chlor-alkali plant; the main pollutant is chlorine gas, which is absorbed using alkaline solutions
By measuring the mass concentrations of SO2 at the inlet and outlet of the flue gas, ρ(in) and ρ(out), the desulfurization efficiency can be calculated: (ρ(in)-ρ(out))/ρ(in))*100%
By measuring the mass concentrations of Cl2 in the flue gas at the inlet and outlet, namely ρ(in) and ρ(out), before and after absorption by an alkali, the dechlorination efficiency can be calculated: (ρ(in)-ρ(out))/ρ(in))*100%
By measuring the mass concentrations of Cl2 in the flue gas at the inlet and outlet, namely ρ(in) and ρ(out), before and after absorption by an alkali, the dechlorination efficiency can be calculated: (ρ(in)-ρ(out))/ρ(in))*100%
By measuring the flow rate of the gas, the composition of the gas at the inlet, and the composition of the gas at the outlet, it is possible to determine the removal capacity and efficiency of the equipment. Furthermore, the removal efficiency is also highly dependent on the concentration of the alkali solution. Simply calculate the average of the maximum efficiency and the minimum efficiency.
The calculation of chemical reaction solutions is relatively simple; absorption by pure solutions is a bit more complex. In such cases, it’s sufficient to maintain an adequate amount of base, and with proper distribution of gas and liquid phases, the reaction rate need not be considered. If the concentration of chlorine emissions is high, then the removal of reaction heat needs to be taken into account