Furnace production carbon black

Using natural gas or high aromatic oil in furnace reaction incomplete combustion generating black charcoal, this method is called furnace black, is the largest, carbon black varieties production a kind of variety are most, furnace black and slot black and hot tear black significant differences between it and the particle of melting ties or coalescence degree according to different purposes to adjust. so, same size range of furnace black, and consists of a number of different structural derived varieties. In addition, furnace black oxygen levels than slot black low (usually less than 1%), surface show neuter or weak alkali. furnace black production characteristics are, fuel combustion in reactor, provide raw materials needed to heat. Pyrolysis The burning and cracking process simultaneously. According to the materials at different forms of production can be divided into black, furnace gas furnace method and oil furnace method two kinds. gas furnace method used materials and fuel are natural gas. Oil furnace method of fuel can be natural gas, coke oven gas, can also be liquid hydrocarbon, raw material chooses high aromatic oil, such as ethylene tar and anthracene oil etc. production of different types of furnace black must be adopted different dimensions of the furnace. Air and fuel in the reactor in combustion, raw materials by atomization sprayed into the burning flame, the heat generated from pyrolysis carbon black. Carbon fuel gas suspended in more than formed in smoke. Smoke evacuation by urgent cold air preheater, oil preheater further cooling, and finally into the bag filter, separating out of carbon black in granulator granulation, then to the dryer in drying.