METHOD FOR OBTAINING ACTIVE CARBON MATERIALS Russian patent published in 2022 - IPC C01B32/33 

FIELD: material engineering.

SUBSTANCE: invention relates to a method for producing a carbon porous material, which is carried out as follows: the feedstock, as which tar, asphalt, heavy shale resin, heavy catalytic cracking gas oil, is subjected to delayed coking at a temperature of 495 to 505°C and an overpressure of 1.5 to 3.5 atmg to obtain petroleum coke, then the resulting petroleum coke is crushed and mixed with potassium hydroxide powder in a mass ratio of 3: 1, carbonation of the mixture is carried out at a temperature from 745 to 755°C, next is washing with a hydrochloric acid solution with a concentration of 0.8 to 1.2 M, then with water to a neutral pH value of the washing waters, after that drying at a temperature of 105 to 120°C to obtain a carbon porous material with a specific surface area of 800 to 2300 m²/g.

EFFECT: expansion of the range of methods for obtaining active carbon materials.

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