"Coal Coke" Nitrogen Technology @ Hand from FIX Library
The coking process involves heating hard coal in an oxygen-deficient atmosphere. The coal is carbonized for slightly longer than 24 hours in the narrow slots of an oven before special machines push the resulting incandescent coke out of the oven. It is then taken to a quench station, where water is used to cool it.
A by-product of industrial coke production from pit coal, coke gas is created by high-temperature dry distillation of coking coals in the absence of oxygen. The gas mainly consists of hydrogen (50 to 60%), methane (15 to 30%) and a small percentage (10 to 20%) of carbon monoxide, carbon dioxide and nitrogen. With a calorific value of 5 kWh/m³N, coke gas constitutes a high-value fuel for effective power generation with Jenbacher gas engines.
Other Types of Gases
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