Gaseous ammonia, which comes from the plant 180 at a pressure of about 2.5 bar and temperature of about -14 ° C is liquefied in the compressors and stored in the SR-1 with liquid ammonia, which comes directly from plant 180. Nitric acid is produced by first mixing ammonia and air in a tank. In the presence of a catalyst, a reaction occurs which converts the ammonia to nitric oxide at plant 200. The nitric oxide is further reacted in the presence of water to produce 56% nitric acid.
The technological process includes the following operations: Transporting coal to coal bunkers, preparation of coal blend, filling chambers with mixture of coke coal, coking of coal blends during a given period of time
Heating of coke ovens with coke gas, the extraction of gas from the chambers (the regime of gas collectors), extrusion of coke out of the coke chambers, coke quenching, grading of coke, transporting coke in blast furnace operation, coke gas processing.
Wagon tipplers unload coal from railway wagons. Existing wagon tipplers no. 2 and 3 work on the principle of rotation around its axis. With rotation of the wagon tipplers coal from full wagons is unloaded into the bunkers beneath the wagon tipplers, from where the coal conveyor system transports the coal to the coal bunkers or open coal depot within TPP “Tuzla”.
