Carbon black producing method
AssigneePhillips Petroleum Company
InventorHarold R. Hunt
Life of this patent
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Abstract
A carbon black producing apparatus is provided in which a quench fluid is introduced into a reaction zone for cooling hot smoke which contains solid carbon black particles which are produced by the pyrolysis of a carbon black make hydrocarbon by the heating of same with a combusted air/fuel mixture. The quench fluid is introduced into the reaction zone in a generally tangential direction and in a direction counterrotational to the direction of the vortex flow of the hot smoke flowing along the length of the reaction zone. The cooled smoke is passed to a heat exchanger for further cooling of the smoke after which the smoke is separated into an off-gas phase and a carbon black particle phase by filtering means. The carbon black can then be pelleted and dried for use.
Claims7
A process of quenching a carbon black manufacturing furnace process, in which a free oxygen-containing gas and a carbon black make hydrocarbon are subjected to partial combustion and pyrolysis in a reaction zone to produce a hot smoke containing carbon black particles, which flows in a vortex path along the reaction zone, comprising solid carbon black particles suspended in off-gas, said process including the steps of:
- a. introducing a quench fluid, which is cooler than the hot smoke in the reaction zone, into the reaction zone in a generally tangential direction for initial vortex flow in a direction counterrotational to the direction of vortex flow of the hot smoke.
Dependencies are inferred from the claim text.