Carbon black reactor

Details Carbon black reactor Carbon black reactor

2002-04-30

2009-12-01

Leung, Jennifer A (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

C422S151000, C422S156000, C422S158000, C423S449100

Reexamination Certificate

active

07625527

ABSTRACT:
This invention relates to a carbon black reactor comprising; a combustion zone for generating a hot combustion gas by burning a mixture of a hydrocarbon fuel and an oxygen containing gas, a reaction zone for producing a carbon black by contacting the hot combustion gas with a feedstock introduced in a plurality of divided flows to thermally decompose and/or incompletely combust the feedstock, and a quench zone for stopping a carbon black growth reaction by injection a coolant to said carbon black containing flow, and these three zones are arrayed laterally in order, wherein the cross-section shape of the feedstock introduction part in the reaction zone is not a circle nor a polygon. The carbon black reactor can produce the carbon black having same characteristics, especially the distribution of the aggregate size, as one produced by pilot-scale reactor, while its production scale is increased to the level of that of reactor actually operated.

REFERENCES:
patent: 3984528 (1976-10-01), Cheng et al.
patent: 4447401 (1984-05-01), Casperson et al.
patent: 4927607 (1990-05-01), Berg et al.
patent: 5254325 (1993-10-01), Yamasaki et al.
patent: 5264199 (1993-11-01), Sakaue et al.
patent: 1304390 (1973-01-01), None
patent: 2003457 (1979-03-01), None

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