Overview of coke oven gas
How much do you know about coke oven gas? The following is introduced by the coke oven manufacturer:
Coke oven gas, also known as coke oven gas. It refers to the use of several bituminous coals to form coking coal. After high-temperature carbonization in a coke oven, it produces a combustible gas at the same time as coke and tar products. It is a by-product of the coking industry.
Coke oven gas is a mixture. The yield and composition vary depending on the quality of coking coal and coking process conditions. Generally, coke oven gas can be produced in 300-350 m3 (standard state) per ton of dry coal. Its main components are hydrogen (55%~60%) and methane (23%~27%), and also contain a small amount of carbon monoxide (5%~8%), C2 or above unsaturated hydrocarbons (2%~4%), carbon dioxide. (1.5%~3%), oxygen (0.3%~0.8%), and nitrogen (3%~7%). Among them, hydrogen, methane, carbon monoxide, C2 or higher unsaturated hydrocarbons are combustible components, and carbon dioxide, nitrogen and oxygen are non-flammable components.
The coke oven gas belongs to the medium heat value gas, and its calorific value is 17~19MJ per standard cubic meter, which is suitable for use as fuel for high temperature industrial furnaces and city gas. Coke oven gas has a high hydrogen content and is used for ammonia synthesis after separation. Other components such as methane and ethylene can be used as organic synthesis materials.
Coke oven gas is toxic and explosive, and the explosion limit in air is 6%~30%.
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