ABSORBING COMPOUND, METHOD FOR PREPARATION THEREOF (VERSIONS) AND METHOD OF REMOVING CARBON DIOXIDE FROM GAS MIXTURES Russian patent published in 2019 - IPC B01J20/04 B01J20/30

Abstract RU 2685294 C1

FIELD: technological processes.

SUBSTANCE: group of inventions relates to sorption separation of gases, specifically to chemical absorbers of carbon dioxide. Disclosed is an absorber for removal of carbon dioxide from gas mixtures, which is a granular sorbent, containing, wt %: LiOH 74–82; LiCl 2.2–2.5; polyethylene oxide 0.5–10; carboxymethyl cellulose 0.5–10; water 5; the rest is Ca(OH)₂. Disclosed are two versions of the method of preparing the claimed absorber. Disclosed also is a method of removing carbon dioxide from gas mixtures, carried out in temperature range of 10–70 °C using obtained absorber.

EFFECT: high and stable sorption capacity, high strength of absorber granules, absence of dust and longer protective action.

11 cl, 4 ex

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RU 2 685 294 C1

Authors

Derevshchikov Vladimir Sergeevich

Dates

2019-04-17—Published

2018-05-10—Filed