Patent ID: 8231853

Claim:
A method for producing ultra-dispersed carbon with an effective specific surface area of mono-dispersed carbon nanoparticles of not less than 200 m 2 /g, comprising the steps of supplying gaseous methane and chlorine into separate passageways of a burner communicating with a reactor chamber, igniting a mixture of methane and chlorine in a combustion zone of the reactor chamber thereby resulting in a formation of a diffusion flame in the combustion zone, depositing products of a process of oxidative coupling of methane, separating a suspension containing solid carbon particles, and extracting a desired product, wherein after ignition of the mixture of methane and chlorine to form the diffusion flame in the combustion zone of the reactor chamber, a further methane stream is fed to an outer boundary of the diffusion flame through a branch pipe provided within the reactor chamber, wherein the ratio of the total volumetric feed rate V CH4 for methane supplied through the burner and the branch pipe to the reactor chamber to the volumetric feed rate V C12 for chlorine is selected on the condition: V CH4 /V C12 =i to 25, and internal walls of the reactor chamber in the combustion zone of the diffusion flame are washed by a water stream such that the internal walls temperature is maintained at the level not higher than 90° C., wherein the desired product consists essentially of an ultra-dispersed carbon with an effective specific surface area of mono-dispersed carbon nanoparticles of not less than 200 m2/g.