Apparatus for forming carbon fibers

Details Apparatus for forming carbon fibers Apparatus for forming carbon fibers

1990-10-09

1991-06-18

Kratz, Peter

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

422150, 4234473, B01J 1924

Patent

active

050248189

ABSTRACT:
In a preferred embodiment, an apparatus for forming carbon fibers in a continuous gas phase reaction is disclosed wherein a reactor defines a vertical reaction chamber with a close upper end and a lower outlet, with a vertical reactant feed tube which extends generally axially therewithin. Gaseous reactants are injected into the reactor through an opening of the feed tube. The feed tube and chamber are constructed and arranged to define a gas flow path which extends generally axially upward through the feed tube into the chamber and thereafter generally axially downward through the chamber. Preferably, the tube and reactor chamber are radially spaced and concentric. The feed tube may encompasss a capillary tube which supplies a vaporizable liquid reactant. The reactor and feed tube are each elongate and of a material which is relatively resistent to heat and corrosion and are preferably of a mullite material. The feed tube extends more than one-half of the axial length of the reactor. Desirably, the feed tube extends at least three-fourths of the axial length of the reactor, and preferably extends at least five-sixths of the length thereof and is concentric with the reactor chamber defined by the tubular reactor.

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