High mixing reactor process

A process for producing high surface area carbon black in which fluids comprising at least one stream of carbon black feedstock and at least one stream comprising combustion gases are injected into a precombustion zone of a carbon black reactor, said process comprising:

• (a) injecting one of said fluids in axial flow through a first pipe nozzle concentric with the center line of said reactor and the remainder of said fluids through the annuli formed by a plurality of pipe nozzles concentric with and surrounding said first pipe nozzle, and
• (b) controlling the velocity of fluid flow through said first pipe nozzle and said annuli to provide radially adjacent axially flowing streams with each stream having a flow velocity within a range of about 50 ft/sec to about 1700 ft/sec that is sufficiently dissimilar from each adjacent stream to create turbulence and sufficiently rapid mixing of the streams to form high surface area carbon black on being subjected to combustion conditions.