What is FGD system?
The Flue-Gas Desulfurization (FGD) process utilizes a set of technologies to remove sulfur dioxide (SO2) from the flue gas emissions of coal-fired power plants.
What is FGD in thermal power plant?
The flue gas desulfurization (FGD) plant removes sulfur dioxides (SO2) from flue gas produced by boilers, furnaces, and other sources.
Which gas is used to desulfurization?
sulfur dioxide
Flue-gas desulfurization (FGD) is the removal process of sulfur dioxide (SO2) from flue gas emissions, often chemically. Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production.
What is flue gas desulfurization process?
Flue gas desulfurization is the process of removing sulphur compounds from the exhaust emissions of fossil-fueled power stations. This is done through the addition of absorbents, which can remove up to 95% of the sulphur dioxide from the flue gas.
Where is FGD used?
Flue gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO2) from flue gases produced from industrial combustion at petrol refineries, chemical manufacturing industries, mineral ore processing plants, and power stations to name a few.
What is FGD wastewater?
Flue gas desulfurization (FGD) systems are used to remove sulfur dioxide (SO2) air emissions in coal-fired power plants. FGD wastewater is often saturated with calcium sulfate, while containing both metals and chlorides.
Why is flue gas desulfurization important?
Flue Gas Desulfurization (FGD) Processes. In many plants it is necessary to remove sulfur from the flue gases after the combustion process to meet environmental requirements.
What is dry FGD?
The Ducon Dry FGD (Dry Sorbent Injection) is used to remove Sulfur dioxide, hydrogen chloride, and other toxic components from flue gases by injecting dry lime, trona, or soda ash ahead of a ESP or baghouse. This is a low cost alterantive for applications that do not have high removal efficiency requirements.
Why is desulfurization important?
The desulfurization of natural gas is necessary for two very important reasons. The H2S that is present is not only toxic to workers and consumers but it is also detrimental to the very pipeline networks that deliver the fuel. At its worst, it can induce respiratory failure, coma and even death to those exposed.
What is flue gas in boiler?
Flue gas (sometimes called exhaust gas or stack gas) is the gas that emanates from combustion plants and which contains the reaction products of fuel and combustion air and residual substances such as particulate matter (dust), sulfur oxides, nitrogen oxides, and carbon monoxide (Table 3.7).
What is Cochran boiler?
A Cochran Boiler is one of the multi-tubular vertical fire tube boilers that has several horizontal fire tubes. Cochrans are the modification of a simple vertical boiler where the heating surface has been increased employing some fire tubes.
What is PA fan in boiler?
Primary air fans are one type of fan that can be used in certain boilers. They are often used as an alternative to pulveriser blowers on coal-fired boilers for power generation. Primary air fans provide high-pressure air to the boiler system, which enters it through the APH.