Reactor and method for production of carbon black with broad...

Details Reactor and method for production of carbon black with broad... Reactor and method for production of carbon black with broad...

C - Chemistry, Metallurgy

09

C

23/307, 23/402

C09C 1/48 (2006.01) C09C 1/50 (2006.01)

Patent

CA 2005696

"REACTOR AND METHOD FOR PRODUCTION OF CARBON BLACK WITH BROAD PARTICLE SIZE DISTRIBUTION" Abstract of the Disclosure A reactor and method for producing carbon black in an axial flow carbon black reactor results in carbon black with a relatively broad particle size distribution and a heterogeneity index of greater than 1.55 and less than or equal to about 2Ø The reactor includes a combustion chamber, a choke, and an exit chamber, wherein the ratio of the cross-sectional flow area of the combustion chamber to the cross-sectional flow area of the choke is less than or equal to about 6.9, and the ratio of the cross-sectional flow area of the exit chamber to the cross- sectional flow area of the choke is less than or equal to about 3.5. The cross-sectional flow area of the choke section is preferably greater than about 50 square inches. The linear velocity of the reaction mixture through the reactor is controlled so that the linear velocity of the reaction mixture through the reactor is less than 1200 feet per second and preferably less than 1000 feet per second. The axial flow allows for the introduction of greater amounts of feedstock hydrocarbon into the flow of hot gas, resulting in a higher yield of broad particle size distribution of carbon black.

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