Concentration of dilute acid produced as a by-product of exhaust gas desulfurization.
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For the production of acid from smelting flue gas, hydrogen peroxide is used to remove sulfur from the exhaust gases. I would like to know what the typical concentration of the dilute sulfuric acid produced after desulfurization is; can it be maintained at 40% or higher? Purpose: to reduce the total amount of dilute acid?
Can we directly measure the concentration of dilute sulfuric acid, monitor it, and then use dilution or concentration methods to keep the concentration at 40 percent based on the monitoring results? Is that possible?
According to several users, 20% is a good achievement in China, but the designers say it’s possible to reach 30%, while imported versions can achieve over 40%. I don’t know if it’s possible to reach that high.
Does your family use hydrogen peroxide for desulfurization?
No, getting ready to start. There are concerns regarding the concentration of dilute sulfuric acid produced as a by-product after hydrogen peroxide treatment, as well as the issue of dry absorption equilibrium at that time.
Oh, where is your factory located? Which company’s technology is planned to be chosen
Our factory uses hydrogen peroxide to treat exhaust gases, with the concentration of dilute acid reaching over 30%. But it has side effects. First: The current of the circulation pump increases significantly ； Second: Increased circulation volume ； These two factors cause a significant increase in power consumption, which is uneconomical. Third: The concentration of hydrogen peroxide in dilute acids increases significantly, leading to higher consumption of hydrogen peroxide. I usually keep this level below 20% (my factory currently has a high conversion rate, so the amount of dilute acid is very small; sometimes it is required that the concentration of dilute acid be below 10%).