Table 7 A comparison of the parameters before and after the optimization

Circulation rate of lean solution, m³/h

330

330

flow rate of the wet purified gas, 10⁴Nm³/h

185

184.9

Wet purified gas

H₂S, mg/m³

3.7216

4.2562

CO₂,  %

2.4359

2.4307

Heat load of reboiler, kW

29,180

28,980

Acid gas load of rich solution, mol/mol

0.5062

0.5006

Electric energy consumption, kWh/d

20,467

19,546

0.4Mpa flow rate of vapor, t/d

927

920

Recycled chilled water, t/d

6415

6402

Supplementary deoxygenation water, t/d

47.4

45.2