The invention relates to a thermolysis system and method for obtaining recovered carbon black and fuel from disused tires, which includes a thermolysis reactor and a flash vessel acting jointly to refine fuel without the need for post-treatment to clean same. During thermolysis, condensers are cleaned without needing to cut the flow or deviate the gas stream, since the deposits formed inside tubes of a heat exchange system are cleaned using a part of the fuel obtained. The carbon black obtained is comparable to existing semi-reinforcing carbon blacks. The obtained fuel has a high content of aromatic compounds, and its carbon content is reduced to 3% by weight, up to 0.8% by weight, with respect to fuels obtained in pyrolytic processes, without requiring post-treatment such as distillation processes or catalytic treatment.

Recovered carbon black (rCB) comprising carbon black, inorganic ash and carbon-based residues resulting from the decomposition of pneumatic rubbers and/or elastomer residues, characterized in that said content of carbon-based residues, determined with respect to the percentage of area of the C.sub.1 peak measured by X-ray photoelectron spectroscopy, is less than or equal to 1% of said area of the C.sub.1 peak, said percentage of area of the C.sub.1 peak being calculated with respect to the total area of the C.sub.0 to C.sub.5 peaks.

A carbon black is provided. The carbon black is produced through heat treatment of recycled carbon black. Since the carbon black is made from recycled carbon black, it is a kind of environmentally friendly carbon black.

The present invention relates to a process for producing carbon black and to carbon black obtained by such process as well as use of such carbon black. The present invention further relates to compositions comprising such carbon black and uses of such compositions.

The present invention relates to a process for producing a carbon black and to carbon black obtained by such process as well as the use of such carbon black. The present invention further relates to compositions including such carbon black and uses of such compositions and articles prepared from such compositions.

A catalyst regeneration method is suitable for a fluidized catalytic cracking unit has a catalytic cracking reactor and a catalyst regenerator. The regeneration method has the following steps: 1) providing a biomass-derived biomass charcoal; 2) feeding the biomass charcoal and the catalyst to be regenerated from the catalytic cracking reactor into the catalyst regenerator together or separately; 3) introducing an oxygen-containing gas into the catalyst regenerator, wherein the oxygen content of the oxygen-containing gas is 14-28% by volume; and 4) contacting the catalyst to be regenerated with the biomass charcoal and oxygen-containing gas in the catalyst regenerator for coke-burning regeneration. The method can significantly reduce carbon emissions from the catalytic cracking unit, realize the recycling of carbon elements, and provide energy for other process units.

A reactor for converting polymer containing materials, such as rubber, including tire rubber, or pyrolyzed rubber, including pyrolyzed tires, or plastic, including pyrolyzed plastic, into output products includes a feed section, a central heating-zone section having a first processing zone configured to heat the material to a first temperature and a second processing zone configured to maintain the material at the first temperature, a discharge section, means for withdrawal of vaporized short-chain hydrocarbon compounds being formed, at least one water steam injector configured to introduce water steam into the interior of the second processing zone and positioned at the bottom of the second processing zone, or at least one CO2 gas injector configured to introduce CO2 gas into the interior of the second processing zone and positioned at the bottom of the second processing zone, or both, and heating means for heating the material. The reactor can include at least one more reactor thereby forming a modular system having a battery of side-by-side positioned reactors.

Recovered carbon black from recycled tires may be processed through several stages of: cleaning of the recovered carbon black; activation of the recovered carbon black; hydrothermal impregnation of catalyst in activated carbon of the recovered carbon black; graphitization of activated carbon of the recovered carbon black impregnated with catalyst; and finally, cleaning of graphite and recovery of catalyst.

Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypohalite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. This modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled.