The CSQ coke stabilization quenching process

The conventional wet quenching process has been further developed into the CSQ (coke stabilization quenching) process. The process has already been im plemented in German cokemaking plants. The special feature of the CSQ proce ss is the simultaneous application of spray and sump quenching. The high qu enching rate is an essential process element. It enables a rapid reduction of the coke temperature, a shorter reaction time, less formation of water g as and hydrogen sulphide as well as high mechanical impact and stabilizatio n of the quenched coke,uniform grain distribution and thus a better coke qu ality. The technical equipment comprises a number of components that provid e operational advantages and, above all, contribute to a reduction of the e missions. These components include a single-point quenching car, which prac tically prevents any dust emissions during coke pushing, a reduced air cont act area of the coke, which also has an emission reducing effect, a new que nching tower design, which prevents larger volumes of ambient air from ente ring, and roof-shaped, lamellar baffles with integrated purging, which sepa rate the dust by mechanical deflection and electrostatic adsorption. The dr um strength and abrasion values of the produced coke comply with the qualit y requirements of a good blast furnace coke. A product-technological advant age of the process is that the moisture of the coke can be objectively adju sted. The CSQ process is most suitable for coke ovens with large chamber vo lumes, especially with high and wide chambers. Regarding the emission value s it is superior or at least equal to the dry quenching process. The CSQ pr ocess provides additional development potential and distinct economic, prod uction-technological as well as product-related advantages.