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
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF FRYING GASES OF HS AND CO | 2001 |
|
RU2235582C2 |
| ABSORBENTS FOR PURIFICATION OF GASES FROM HS AND CO | 1997 |
|
RU2143942C1 |
| ABSORBENT FOR CLEANING GASES FROM HYDROGEN SULPHIDE AND CARBON DIOXIDE | 2014 |
|
RU2586159C1 |
| HYDROGEN SULPHIDE NEUTRALISER (SCAVENGER) AND METHOD FOR USE THEREOF | 2014 |
|
RU2561169C1 |
| METHOD OF CLEANING GAS OF ACID COMPONENTS | 2009 |
|
RU2412745C1 |
| ABSORBENT, APPARATUS FOR REDUCING CO OR HS CONTENT AND METHOD OF REDUCING CO OR HS CONTENT USING SAID ABSORBENT | 2008 |
|
RU2446861C2 |
| NATURAL GAS PURIFICATION PROCESS | 1994 |
|
RU2127146C1 |
| METHOD OF CLEANING GAS FLOWS FROM CARBON DIOXIDE | 2014 |
|
RU2589166C1 |
| AQUEOUS ALKANOLAMINE ABSORBING COMPOSITION CONTAINING PYPERAZIN FOR IMPROVED REMOVAL OF HYDROGEN SULPHIDE FROM GASEOUS MIXTURES, AND METHOD OF ITS USE | 2013 |
|
RU2642071C2 |
| METHOD OF OBTAINING INHIBITOR FOR ALKANOLAMINE ABSORBENTS OF GAS PURIFICATION FROM ACID COMPONENTS AND ABSORBENT | 2014 |
|
RU2550184C1 |
