Cooling of hot coke by using inert gas is known as Coke Dry Quenching and is available as an alternate quenching metod. The coke wet quenching has following disadvantages1The sensible heat of coke is lost to the atmosphere.2.part of water gets evaporated into atmosphere 3.The steam carries cynide,sulphide,phenol and dust in the atmosphere.4.water also carres dust,and other pollutants into the ...

CDQ is a heat recovery system to cool the hot coke from coke ovens. It is one of the most renowned energy-efficient and environmentally-friendly facilities within steel production. CDQ is a system where hot coke removed from coke ovens at a temperature of approximately 1,000°C is cooled and kept dry with inert gas and the resulting steam ...

Coke Dry Quenching concept fl owsheet Process features The coke dry quenching (CDQ) process utilizes an inert gas to cool the red hot coke and re cover sensible heat. The hot coke is transferred from the oven to the cooling chamber where it is charged from the top and the cooling gas is blown from the bottom. After a cleaning section

Coke dry quenching (CDQ) is an energy saving process used during the production of coke in the coke oven battery. A CDQ plant is also called coke dry cooling plant (CDCP). In the traditional CWQ (coke wet quenching) process, the red-hot coke which is pushed from the coke oven is cooled by spraying water on the hot coke.

Is dry quenching Coke?

Coke oven, dry quenching chamber / waste gas channel Coke Oven, Dry Quenching Chamber / Waste Gas channel This is an energy saving system in which, during quenching process, sensible heat of the red hot coke is recovered and utilized for power generation or as steam.

COKE DRY QUENCHING 3 MAIN SPECIFICATIONS OF CDQ PLANT No. Description CDQ 1 & 2CDQ 3 & 4 1Maximumcoke throughput (charging amount to the chamber) 120T/H 2Rated coke throughput (charging amount to chamber) 85 T/H 112 T/H 3Coke solution loss Approx. 1% 4 Red hot coke temperature 1000±500C

The coke dry quenching equipment broadly consists of a coke cooling tower (pre-chamber and cooling chamber) and a waste heat recovery boiler. The entire process has as follows: Red-hot coke (approx. 1,200°C) is charged into the coke cooling tower, and inert gas is blown into the tower from the bottom.

Jan 01, 2000 · 2. The coke dry quenching (CDQ) system. To quench coke in the steel making industry means to cool it from approximately 1100 to 200°C in order to inhibit its combustion and gasification. The CDQ technique was introduced in Switzerland by the Sulzer brothers in the 1920s.

coke is quenched with CDQ and the electric power is provided from it. By an installation of CDQ, both the ecological and economic advantages can be enjoyed enormously. (2) Prevention of dust emission during coke quenching In general, much amount of coke dust contained in steam (approx. 300-400 g/t-coke) is emitted from the wet quenching tower.

Coke Dry Quenching (CDQ) is an alternative to the traditional wet quenching of the coke. Coke is cooled using an inert gas in dry cooling plant, instead of cooling by sprayed water which results in high CO2 emissions and thermal energy loss. This process allows the recovery of the thermal energy in the quenching gas which can then be used for the production of steam and electricity, for ...

Figure 24.3 shows a coke dry quench (CDQ) unit, one of the most effective heat recovery systems, which is equipped with a coke-oven process (one of the major processes in a steel plant). This unit cools the red-hot coke from the coke oven while recovering its heat.

Coke Dry Quenching Traditionally dry quenching process is being adopted for the cooling of Coke produced from the Coke Oven Battery in Steel Plants. Water is used as cooling media to cool the hot coke which not only consumes large volume of water but also releases harmful pollutants which is also not permitted buy the government latest regulations.

Hot coke out from the coking chamber is received by a circular rotary coke tank on the coke quenching car towed by the electric locomotive. When the car runs to the bottom of the CDQ hoisting headframe, the coke tank is hoisted up by the hoister to the top of the headframe and then moved horizontally to the center of CDQ furnace.

Coke dry quenching is a kind of coke quenching method using inert gas to cool the red coke. During the dry quenching process, the red coke is loaded from the top of the coke dry quenching furnace. The low temperature inert gas is blew into the red coke layer of the cooling section of the dry quenching furnace by the circulating fan, and then ...