FIELD: chemistry.
SUBSTANCE: hydrocarbon gas is supplied into absorber bottom, to the top of which regenerated absorbent is supplied. Purified hydrocarbon gas with suspension of drops of entrained solvent enters settling tank, in which amine drops are separated from gas. Saturated solvent is removed from absorber bottom and is supplied through throttling valve into expander, where occurs stripping of light hydrocarbons and part of carbon dioxide, which is processed in additional absorber to separate carbon dioxide, and hydrocarbon part of gas is injected by flow of partially regenerated absorbent into main absorber. Crudely regenerated solvent from expander is supplied for regeneration into regenerator and after separation of carbon dioxide is returned to the top of main absorber.
EFFECT: invention makes it possible to increase efficiency of absorber operation and increase purity and amount of obtained hydrocarbon gas and carbon dioxide.
3 cl, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF LIQUEFIED CLEANING HYDROCARBON GAS OF CARBON DIOXIDE | 2011 |
|
RU2488430C2 |
| METHOD OF PURIFYING GASES FROM ACIDIC COMPONENTS AND UNIT FOR ITS IMPLEMENTATION | 2018 |
|
RU2686186C1 |
| DEVICE FOR AMINE PURIFICATION OF PROCESS GAS AND METHOD FOR ITS IMPLEMENTATION | 2022 |
|
RU2796506C1 |
| METHOD OF RUNNING OF INDUSTRIAL PLANT FOR PREPARATION OF GAS AND INDUSTRIAL PLANT FOR PREPARATION OF GAS | 1990 |
|
RU2011811C1 |
| METHOD FOR TREATMENT OF LIGHT HYDROCARBON FRACTIONS | 2012 |
|
RU2492213C1 |
| DEVICE FOR AMINE PURIFICATION OF INDUSTRIAL GAS AND METHOD FOR ITS IMPLEMENTATION | 2022 |
|
RU2788945C1 |
| METHOD OF CLEANING GAS FROM CARBON DIOXIDE | 0 |
|
SU1279658A1 |
| METHOD OF NATURAL GAS CLEANING FROM IMPURITIES DURING ITS PREPARATION FOR PRODUCTION OF LIQUEFIED METHANE, ETHANE AND HYDROCARBONS WIDE FRACTION | 2015 |
|
RU2602908C9 |
| METHOD OF PURIFYING DISCHARGED GASES FROM HYDROGEN SULPHIDE | 2012 |
|
RU2526455C2 |
| ZEOLITE RECOVERY GAS TREATMENT UNIT | 2014 |
|
RU2548082C1 |
