Does burning coke release carbon dioxide?
Heat for the calcination is generated by oxidation of coke particles in combustion zone in which the coke reacts with oxygen to form carbon monoxide. It reacts in the gas phase with the oxygen to produce carbon dioxide.
What happens when coke is burnt in good supply of air?
Making Carbon Monoxide
When combustion of carbon is complete, i.e. in the presence of plenty of air, the product is mainly carbon dioxide (CO2). Sources of carbon include; coal, coke, charcoal. … Carbon monoxide is also formed as a pollutant when hydrocarbon fuels (natural gas, petrol, diesel) are burned.
Which is a better fuel coal or coke?
Coke is a better fuel than coal because; -Coke produces more heat on burning than coal. -Coke has a higher calorific value than coal. When equal masses of coke and coal are burnt, coke produces more heat.
Is carbon monoxide a coke?
Hot strength. At temperatures of 1000°C and above, coke carbon reacts with carbon dioxide to produce carbon monoxide, gasifying the coke in the process. This weakens the coke structure causing it to break down within the furnace under mechanical stress.
What is difference between coke and coal?
Coal is a lustrous, black fossil fuel that includes impurities, generates smoke, and generates less heat than coke when burned. Coke is a dingy, black coal waste that burns hotter and cleaner. … Coke is a fuel made from mineral coal that has been calcined or dry distilled.
What burns hotter coal or coke?
Coke is a cleaner, and it gets hotter burning fuel than coal, but it also requires more air to light and remain lit. Higher Forging Temperatures. It burns cleanly, cokes up well, making fire management a breeze, and produces little clinker.
Why coke is used in blast furnace not coal?
Coke is used as a fuel and a reducing agent in melting iron ore. It is produced by baking coal until it becomes carbon by burning off impurities without burning up the coal itself. When coke is consumed it generates intense heat but little smoke, making it ideal for smelting iron and steel.