Patent ID: 9574087
Date: 2017-02-21
CPC Classifications: B01J,C01P,C09C

Claim:
1. An apparatus for producing carbon black comprising: a reactor for combining a heated gas stream and at least one carbon black-yielding feedstock to form a reaction stream in which carbon black is formed in the reactor; at least one feedstock supply line for supplying the carbon black-yielding feedstock to at least one feedstock introduction point to the reactor to combine the feedstock with the heated gas stream; at least one feedstock heater operable to preheat the carbon black-yielding feedstock supplied in the at least one feedstock supply line to a temperature of at least about 300 ° C.; at least one pump operable to pressurize the carbon black-yielding feedstock to a pressure greater than about 10 bar before the feedstock is preheated to at least about 300 ° C. and for providing a feedstock velocity of the feedstock supplied in the at least one feedstock heater of at least 0.2 m/sec, wherein velocity is calculated based on a feedstock density measured at 60° C. at 1 atm and the smallest cross-sectional area of a feedstock line present in said at least one heater; and a quencher for cooling the carbon black in the reaction stream; wherein said apparatus is further operable to provide a feedstock residence time in the at least one feedstock heater and the at least one feedstock supply line before introduction to the reactor for the feedstock preheated to at least about 300 ° C. that is less than about 120 minutes, wherein said preheating avoids formation of vapor film in said at least one heater.