Phillips Petroleum Company

John R Casperson

Paul D Hann

High structure carbon black is produced in an oil furnace reactor characterized by abrupt expansions in the reaction flow passage following the reactor throat.

Method for carbon black production

A carbon black reactor employs the following components to produce non-uniform gas flow patterns.

Process for production of carbon black

A pipe, containing a multiplicity of spray ports spaced longitudinally along the pipe so that carbonaceous feedstock can be simultaneously ejected from the ports outwardly from the pipe, is adapted for concentric longitudinal, axial alignment in a carbon black reactor. Preferably the pipe is jacketed so that coolant fluid can be circulated through the annulus formed between the pipe and the jacket and conduit means provide a connection from the pipe to spray ports located in the jacket wall thereby providing means for ejecting carbonaceous feedstock outwardly from the jacketed pipe. A carbon black reactor containing a feedstock nozzle as described above with the nozzle adapted to eject hydrocarbon feedstock into either a precombustion or a combustion zone of the reactor. A method for producing carbon black in which hydrocarbon feedstock is introduced into either a precombustion or a combustion zone of a carbon black reactor through a feedstock nozzle as described above.

Feedstock nozzle for low tint residual carbon black

A layer of particles of carbon black is used as a filtration medium in the separation of carbon black from a gaseous stream containing carbon black.

Recovery of carbon black

A carbon black reactor to produce non-uniform gas flow patterns utilizes

Carbon black reactor with angled combustion chamber and non-aligned

A carbon black reactor having a mixing section and a reaction section with a choke situated within one of these sections further modified by means for reciprocating the choke along the longitudinal axis of the reactor to disrupt flow and, thereby, produce low tint residual carbon black and a method for producing carbon black utilizing the reciprocating choke.

Carbon black process

A carbon black feedstock nozzle in which a central pipe with a diverging nozzle outlet is surrounded by at least one concentric annulus having a diverging nozzle outlet with a spray angle different from that of the central pipe and with means for supplying a separate controlled flow of inlet material to the central pipe and concentric annulus. In the preferred embodiment multiple concentric annuli surround the central pipe with the outermost annulus supplied with a coolant fluid as inlet material, and the other annuli supplied with hydrocarbon suitable as carbon black reactor feedstock. In a preferred embodiment means are provided for a seriatim cycling of flow through the various hydrocarbon feedstock annuli. A carbon black reactor in which a feedstock nozzle as described above discharges in a portion of the reactor that is either a precombustion section or a combustion section. A method for producing carbon black in which hydrocarbon feedstock is introduced into either a precombustion section or a combustion section of the carbon black reactor through a reactor feedstock nozzle as described above.

Feedstock nozzle and use in carbon black process

A carbon black reactor having a mixing section and a reaction section with a choke situated within one of these sections further modified by means for reciprocating the choke along the longitudinal axis of the reactor to disrupt flow and, thereby, produce low tint residual carbon black. A method for producing carbon black utilizing the reciprocating choke.

Variable venturi carbon black reactor

Liquid sealed lock hoppers for use with a particulate material having a density greater than that of the sealing liquid are provided for connection to the inlet and outlet of a high pressure zone.

Liquid seal lock hoppers and method of utilizing same

The thermal efficiency of a dryer is improved by affixing to the shell of the dryer that contains the material to be dried projections which contact a heating medium surrounding the shell of the dryer and protrude into the interior of the shell. Heat is transferred from the heating medium by the projections to the material to be dried that is inside the shell of the dryer.

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Bartlesville, OK, United States of America

John R Casperson