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U.S. Department of Energy
Office of Scientific and Technical Information

Process for producing carbon black

Patent ·
OSTI ID:5965471
A process is described for producing carbon black in a reaction flow passage having an upstream end, a converging zone, a reactor throat, a reaction zone, a quench zone, and a downstream end, the process comprising: combusting a hydrocarbon fuel with excess amounts of oxygen-containing gas to form a mass of hot combustion gases containing free oxygen and flowing generally axially from the upstream end toward the downstream end of the reaction flow passage; flowing the mass of hot combustion gases through the converging zone; introducing a carbonaceous feedstock generally radially inwardly into the hot combustion gases at a position from the periphery of the converging zone to form a first reaction mixture; flowing the first reaction mixture through the reactor throat; introducing additional carbonaceous feedstock generally radially inwardly into the reaction mixture at a position from the periphery of the reaction zone to form a second reaction mixture; and flowing the second reaction mixture past a second abrupt expansion in the reaction flow passage at a downstream end of the reaction zone and into a quench zone having a sufficiently large diameter and length to provide for the formation of carbon black.
Assignee:
Phillips Petroleum Co., Bartlesville, OK
Patent Number(s):
US 4822588
OSTI ID:
5965471
Country of Publication:
United States
Language:
English