METHOD FOR PRODUCING CARBON FROM CARBON DIOXIDE AND INSTALLATION FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC C01B32/05 B01D53/04 B01D53/14 B01D53/62 B01J19/12 C07C1/12 C25B1/04 

FIELD: chemical industry.

SUBSTANCE: invention can be used in the chemical industry. To obtain carbon from carbon dioxide, atmospheric air is fed into the scrubber, while CO₂-enriched air is removed from the scrubber outlet, which is sent to the amine concentration unit. In the amine concentration block, CO₂-enriched air is passed through monomethylamine. From the amine concentration unit, a saturated CO₂ solution of monomethylamine is sent to the amine concentration reactor, after which the resulting CO₂ from the amine concentration reactor is sent to the Sabatier reactor. Next, the vaporous mixture of CH₄ and H₂O is sent to the heat exchanger, while the condensed water is removed through the cooling jacket of the microwave generator to the electrolyzer to obtain a compensating flow of H₂directed to the Sabatier reactor. The externally introduced CH₄ stream is combined with the CH₄ stream from the Sabatier reactor. The combined CH₄ stream is sent to a microwave generator, carbon is removed as a product. An installation for obtaining carbon from carbon dioxide is also proposed.

EFFECT: inventions make it possible to increase efficiency and reduce energy costs for carbon production.

11 cl, 3 dwg, 1 tbl