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Why is wet powdered calcium carbonate sprayed through the waste gasses in a chimney of a coal fired power station?
Wet powdered calcium carbonate is sprayed through waste gases in a chimney of a coal-fired power station to remove sulfur dioxide (SO2) from the emissions. The calcium carbonate reacts with the sulfur dioxide to form calcium sulfate, which can be disposed of safely. This process helps reduce air pollution and adheres to environmental regulations.
What gas is produced when coal is burned in a power station?
Coal is an impure form of carbon. When combusted it releases carbon dioxide. . It also releases , sulphur dioxide, ammonia, hydrogen sulphide. These three gases are released in much smaller quantities. In modern coal fired power stations, 'scrubbers' or varying types are placed in the exhaust flue(chimney), in order that they can be used elsewhere. So when viewing a power station from the outside, if the coal is being combusted correctly, you will not see any smoke from the chimney. However, there are usually large cooling towers alongside a power station, issuing 'white smoke'. This 'White smoke' is actually 'steam', that has not fully condensed in the cooling tower.
Why are waste gasses from coal-fired power stations passed through calcium carbonate?
Waste gases from coal-fired power stations are passed through calcium carbonate to remove sulfur dioxide from the gas stream through a process known as flue gas desulfurization. In this process, the calcium carbonate reacts with the sulfur dioxide to form calcium sulfate, a solid compound that can be easily removed, reducing air pollution and environmental impacts.
What does a boiler do in a coal power station?
A boiler in a coal power station is responsible for converting water into steam. The coal is burned in the furnace of the boiler, producing heat which is used to generate steam. This steam is then used to drive a turbine, which spins a generator to produce electricity.
How is sulfur removed in power stations?
Sulfur can be removed from emissions at power stations through a process called flue gas desulfurization, which involves injecting a substance like limestone or lime into the exhaust gases. This reacts with the sulfur dioxide to form compounds like calcium sulfite or sulfate, which are then removed from the gases before being released into the atmosphere. Another method is called dry sorbent injection, where a powdered sorbent such as calcium hydroxide is injected into the flue gas to react with sulfur dioxide.
What a gas fired power station doesn't produce?
A gas fired power station does not produce greenhouse gases, such as carbon dioxide, if it can capture and store them.
Why is CO2 and H2O released from a gas fired power station but not from a coal fired power station?
The gas used for burning contains both carbon and hydrogen; coal does not (it consists mainly of carbon).
What is the largest coal fired power station?
kendal power station in south Africa
What facilities does a gas fired power station require that a wood fired power station does not?
A secure pipeline or secure storage tanks to hold the gas.
Which type of power station uses chemical energy to generate electricity coal fired or nuclear?
A coal-fired power station uses chemical energy from burning coal to generate electricity. A nuclear power station uses nuclear reactions to generate electricity.
When was Grain Power Station created?
Grain Power Station, located in Kent, England, was commissioned in 1979. It is a natural gas-fired power station that generates electricity for the national grid.
What type of power station has the least start up time?
A gas-fired power station takes the least time to start up.
Where does gases from rain acid come from?
Mostly from coal fired power plants.
Were is the nearest power station in coventry?
The nearest power station to Coventry is likely the Radcliffe-on-Soar Power Station located in Nottinghamshire, around 50 miles away. This coal-fired power station is one of the closest large power stations to Coventry.
What type of energy is found in a coal fired power station?
chemical energy
What are the four stages of a coal fired power station?
it works by eating tatie
How efficient is a straw-fired power station?
dom price is the runcorn chewer
