Table 5 Simulated results of the mass flow parameters of the deacidification process using the mixed-amines solution
Mass flow parameters | Feed gas | Purified gas | Acid gas | Lean solution entering the absorber unit | Rich solution existing the absorber unit | Lean solution existing the regenerator unit | Rich solution entering the regenerator unit | Mixer | |
|---|---|---|---|---|---|---|---|---|---|
Temperature, °C | 25 | 45.7 | 53.9 | 41.9 | 76.7 | 125.2 | 81.1 | 70 | |
Pressure, kPa | 75,000 | 7150 | 130 | 7150 | 7500 | 200 | 190 | 150 | |
Flow rate, kmol/h | 4250 | 3440 | 799.8 | 10,080 | 10,890 | 9974 | 10,770 | 110 | |
Composition mol % | |||||||||
CO2 | 18 | 2.4359 | 73.9106 | 0.0393 | 6.2923 | 0.0406 | 5.5244 | – | |
H2S | 3 | 0.0004 | 14.4838 | 0.0060 | 1.1946 | 0.0063 | 1.0811 | – | |
H2O | – | 0.1791 | 11.5959 | 84.0123 | 77.6971 | 83.8442 | 78.4808 | – | |
DEA | – | – | – | 3.8303 | 3.5454 | 3.8708 | 3.5835 | – | |
MDEA | – | 0.0001 | – | 12.1116 | 11.2094 | 12.2381 | 11.3296 | – | |
CH4 | 78 | 96.1459 | 0.0096 | – | 0.0787 | – | 0.0007 | – | |
C2H6 | 0.0800 | 0.9867 | 0.0001 | – | 0.0006 | – | – | – | |
C3H6 | 0.0200 | 0.2468 | – | – | 0.0001 | – | – | – | |