Stelco has been recently legislated to reduce total SO2 emissions from iron smelting operations. Select the most effective chemical reagent to desulfurize Stelco’s gas emissions
a. CaCO3
b. CO2
c. HClO4
d. HI
e. H2SO4
I believe the answer is A but I'm unsure with H2SO4.
sorry the rest of the choices are
b. Co2
C. HClO4
D HI
e H2SO4
I think its a.. since it displaces the ions
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The only problem with CaCO3 is that it is not very soluble but I suppose under some conditions enough Ca ions might be in solution to form calcium sulfite or calcium sulfate. H2SO4 would be great but who wants the problem then of getting rid of the excess acid.
So do you think that H2SO4 is the better choice? Or shall I stick with CaCO3
To determine the most effective chemical reagent to desulfurize Stelco's gas emissions, we need to consider the properties and reactions of each option.
a. CaCO3 (Calcium Carbonate): CaCO3 is commonly used as a sorbent for flue gas desulfurization. It reacts with sulfur dioxide (SO2) to form calcium sulfite (CaSO3) and carbon dioxide (CO2). This reaction can effectively reduce SO2 emissions.
b. CO2 (Carbon Dioxide): CO2 is not a suitable reagent for desulfurization. It is a byproduct of the combustion process and does not react with SO2. Therefore, it does not contribute to reducing SO2 emissions.
c. HClO4 (Perchloric Acid): HClO4 is a strong acid and can react with SO2. However, it is less commonly used for desulfurization compared to other reagents due to its hazardous nature and potential environmental concerns.
d. HI (Hydrogen Iodide): HI can react with SO2 to form sulfuric acid (H2SO4) and hydrogen iodide (HI2). Although this reaction can potentially reduce SO2 emissions, HI is not commonly used as a reagent for desulfurization.
e. H2SO4 (Sulfuric Acid): Sulfuric acid is a strong acid and can effectively react with SO2 to form sulfate salts. It is commonly used in industrial applications for desulfurization and is considered an effective reagent for reducing SO2 emissions.
Considering the above explanations, the most effective chemical reagent for desulfurizing Stelco's gas emissions would be option e, H2SO4.