Coking plant gas precooler

Last crawled date: 11 months ago

A large number of gaseous substances are produced during coking. The cleaned coke oven gas has the following components, which vary depending on the coking plant and the coal used: 55% hydrogen, 25% methane, 10% nitrogen and 5% carbon monoxide. The raw gas still contains the following components: carbon dioxide, ammonia, hydrogen sulfide, higher hydrocarbons and aromatics, which are largely removed. During coking, around 25% of the coal used is produced as volatile constituents. One ton of coal yields 280 m³ of clean coking gas and approx. 55 kg of sticky coal tar. The coke oven gas is sucked out of the gas collecting space above the bed from the coke oven. By cooling with water, tar is deposited. The raw gas is cooled and cleaned in gas scrubbers. The constituents that impair the use of the gas, such as hydrogen sulfide, ammonia, benzene and aromatics such as naphthalene, are largely removed and these are further processed as so-called carbon materials. This gas is known as partially