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ReneSulfur dioxide gas in power stations can be neutralized by using a process called flue-gas desulfurization (FGD), which involves reacting the gas with an alkaline solution, commonly limestone slurry, to form calcium sulfite or sulfate. This reaction removes sulfur dioxide from the gas stream, reducing its harmful effects on the environment.
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Which substance is used to neutralize sulfur dioxide in fue gases from power stations?
Limestone (calcium carbonate) is commonly used to neutralize sulfur dioxide in flue gases from power stations through a process called flue gas desulfurization (FGD). When sulfur dioxide reacts with limestone, it forms calcium sulfite, which can then be further oxidized to form gypsum (calcium sulfate), a less harmful solid waste product.
Are nuclear power stations more efficient than coal power stations?
Yes, nuclear power stations are generally more efficient than coal power stations, as they can generate more electricity with the same amount of fuel. Nuclear power produces less waste and greenhouse gas emissions compared to coal power.
How is sulfur dioxide removed from coal fired power stations?
Sulfur dioxide in coal-fired power stations is typically removed using a process called flue gas desulfurization (FGD). This can be done through methods such as scrubbing with a limestone slurry or using specialized equipment like dry sorbent injection systems. These processes help to capture and neutralize sulfur dioxide before it is released into the atmosphere.
What power stations produce CO2?
Most power stations that burn fossil fuels such as coal, oil, and natural gas produce CO2 as a byproduct of combustion. These fossil fuel power stations are major contributors to CO2 emissions and climate change.
How is limestone used in power station?
Limestone is used in power stations to remove sulfur dioxide gas emissions from the burning of coal. This process, known as flue gas desulfurization, involves spraying a slurry of limestone in water into the flue gas to neutralize and capture sulfur dioxide, reducing air pollution.
