FIELD: chemistry.
SUBSTANCE: invention relates to removing hydrogen sulphide and carbon dioxide from gases. The absorbent contains methyl diethanolamine, a fraction of vacuum distillation of technical polyethylene polyamine with boiling range of 50-200°C, a water-soluble physical solvent and water. The water-soluble physical solvent used is polyethylene glycol or methyl ethers of polyethylene glycol of formula CH3-O(CH2CH2O)x-H, where x=2-5.
EFFECT: invention provides high efficiency of removing H2S and CO2 from gases while maintaining high efficiency of regenerating the absorbent from acidic components.
3 cl, 3 tbl
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RU2561169C1 |
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RU2589166C1 |
AQUEOUS ALKANOLAMINE ABSORBING COMPOSITION CONTAINING PYPERAZIN FOR IMPROVED REMOVAL OF HYDROGEN SULPHIDE FROM GASEOUS MIXTURES, AND METHOD OF ITS USE | 2013 |
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RU2642071C2 |
METHOD OF OBTAINING INHIBITOR FOR ALKANOLAMINE ABSORBENTS OF GAS PURIFICATION FROM ACID COMPONENTS AND ABSORBENT | 2014 |
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Authors
Dates
2014-04-20—Published
2012-11-12—Filed