you are hired as an environmental consultant at Stelco Inc., one of the largest steel manufacturer’s in Canada. 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 as a strategy to minimize the environmental impact of acid rain in eastern Canada:
a. CO2
b. HClO4
c. CaO
d. HCl
e. HNO3
Your job is to determine which of the materials SO2 will react with. Which do you think is the most probable?
Your second question you posted should tell you the answer to this one.
o ok...so it would be lime (CaO)
yes.
To determine the most effective chemical reagent to desulfurize Stelco's gas emissions and minimize the environmental impact of acid rain in eastern Canada, we can evaluate the options provided:
a. CO2: Carbon dioxide is not an effective desulfurizing agent. It does not have the ability to remove sulfur dioxide (SO2) from gas emissions.
b. HClO4: Perchloric acid (HClO4) is a strong oxidizing agent, but it is not commonly used for desulfurization purposes.
c. CaO: Calcium oxide, also known as quicklime, is an effective reagent for desulfurizing gas emissions. It can react with sulfur dioxide to form calcium sulfite (CaSO3), which can then be further oxidized or converted into other forms.
d. HCl: Hydrochloric acid (HCl) is a strong acid that is not primarily used for desulfurization purposes. It is typically used in other industrial processes.
e. HNO3: Nitric acid (HNO3) is a strong acid and is not commonly used for desulfurization.
By evaluating the options, the most effective reagent for desulfurizing Stelco's gas emissions is option c. CaO (calcium oxide). Calcium oxide reacts with sulfur dioxide to form calcium sulfite, which can then be converted into other forms or further oxidized.
It is important to note that the specific desulfurization process may involve additional steps and reagents, and a thorough evaluation of factors such as cost, feasibility, and environmental impact would be necessary before implementing any desulfurization strategy.