The invention relates to the chemical industry and can be used for processing methane and other volatile, liquid, solid fusible hydrocarbons when producing hydrogen, soot, and other flammable gases. The invention relates to a method for the pyrolytic decomposition of hydrocarbons, in which a pyrolysis reactor arranged in a space bounded by a lining is heated by flue gases generated by combusting a hydrogen-enriched mixture of air and gaseous hydrocarbons, while ensuring a maximum decrease in CO.sub.2 emissions into the atmosphere. The invention also relates to a unit for the pyrolytic decomposition of hydrocarbons. The technical result is a high degree of separation of hydrogen and carbon by fast high-temperature pyrolysis at atmospheric pressure without oxygen supply and without CO.sub.2 production.

The disclosed is a method for producing a carbon material dispersion which removes efficiently and reliably metallic components from carbon materials, and that provides a carbon material dispersion of a high product quality and stable electrical properties. The method comprises a first magnetic separation step in which the powdered and/or granulated carbon material C is applied to the surface of a rotating magnetic roll 130 to remove the metallic component M from the carbon material in the dry state of the powdered and granulated carbon material C; and a second magnetic separation step in which a magnet element 310 is placed in a carbon material dispersion D, in which the carbon material from which the metallic component has been removed in the first magnetic separation step is dispersed in a dispersing medium, in advance of the second magnetic separation step.

The invention relates to a method for producing hydrogen gas and optionally a carbonaceous product from a hydrocarbon fuel, comprising: introducing a flowing stream of said fuel into a reaction chamber of a reactor, wherein said reaction chamber has at least one wall and a heating zone which is heated by a heat source, heating said fuel in said heating zone to effect pyrolytic decomposition of said hydrocarbon fuel to produce said hydrogen gas and optionally said carbonaceous product; wherein the ratio of C:O (mol/mol) in the reaction chamber is greater than 20:1; and characterized in that the heat source heats the hydrocarbon fuel in the heating zone by radiated heat to an average temperature of greater than 2000° C. The invention also relates to an apparatus for carrying out the method of the invention.

The specification discloses methods and apparatus for producing carbon black from CO.sub.2 by way of a reactor having a chamber filled with a molten salt electrolyte. On application of a current through one or more cathodes and one or more anodes affixed to the reactor, dissolved CO.sub.2 within the molten salt electrolyte is converted into carbon black and oxygen gas. The carbon black is collected.

A device (1) and method are claimed for converting thermal energy into dissociation energy of molecules of a gas medium (3). The device incorporates a reaction vacuum chamber (2), designed to enable a gas medium (3) to be supplied therein, at least one thermal radiator (4), of which at least one emission spectral line of a medium (5), in the temperature range 350° C. to 1500° C., at least partially corresponds to the absorption spectral line of molecules of the gas medium (3). At least part of the volume of the vacuum chamber (2) is positioned in the zone of optical visibility of the radiator (4) and is a reaction volume (7) for the gas medium (3), in which reaction volume, as a result of resonance oscillations of molecules of the gas medium (3), excited by the radiator (4), at least partial dissociation of the gas medium (3) takes place. The device also incorporates a system (8) for drawing off at least one product of dissociation of molecules of the gas medium (3).

The invention relates to a process for converting a plastic feedstock and for converting used tyres to obtain carbon black, comprising the following steps: a) a solid feedstock (100) based on used tyres is sent into a reaction zone (10) in the presence of a liquid solvent (340) comprising aromatic compounds to at least partly dissolve said solid feedstock and to thermally decompose said dissolved solid feedstock so as to obtain carbon black (160) and a first hydrocarbon-based liquid fraction (120); b) a molten plastic feedstock (200) is sent together with at least a portion of the first hydrocarbon-based liquid fraction (120) obtained on conclusion of step a) into a conversion zone (20) to dissolve said molten plastic feedstock (200) and to thermally decompose said dissolved plastic feedstock so as to obtain a second hydrocarbon-based liquid fraction (230).

A method for obtaining carbon-containing material from recyclable tires and rubber products, by mechanically crushing a raw material, from recycled tires in a shredder, supplying a charge to a reactor at temperature, removing gaseous pyrolysis products from the reactor, followed by condensing liquid products, unloading solid residue from the reactor and cooling it, feeding the cooled residue into a crusher, coarsely crushing the solid residue, removing metal from the crushed solid residue in a magnetic separator.

The invention relates to a process for converting a plastic feedstock and for converting used tyres to obtain carbon black, comprising the following steps: a) a solid feedstock (100) based on used tyres is sent into a reaction zone (10) in the presence of a liquid solvent (340) comprising aromatic compounds to at least partly dissolve said solid feedstock and to thermally decompose said dissolved solid feedstock so as to obtain carbon black (160) and a first hydrocarbon-based liquid fraction (120); b) a molten plastic feedstock (200) is sent together with at least a portion of the first hydrocarbon-based liquid fraction (120) obtained on conclusion of step a) into a conversion zone (20) to dissolve said molten plastic feedstock (200) and to thermally decompose said dissolved plastic feedstock so as to obtain a second hydrocarbon-based liquid fraction (230).

A method for obtaining carbon-containing material from recyclable tires and rubber products, by mechanically crushing a raw material, from recycled tires in a shredder, supplying a charge to a reactor at temperature, removing gaseous pyrolysis products from the reactor, followed by condensing liquid products, unloading solid residue from the reactor and cooling it, feeding the cooled residue into a crusher, coarsely crushing the solid residue, removing metal from the crushed solid residue in a magnetic separator.

The present invention relates to the conversion of flue gas to valuable products, in particular to the conversion of carbon dioxide in flue gas to liquid fuels and valuable carbons in a carbon negative manner.