1.In addition to the methods,some proposals such as the sour gas temperature entering the absorber,the temperature detection in the absorber,the leansolution circulation boosting by pumps in series and the material of the stripping still shell are made.
2.The volume fraction of H2S in the purified gas is less than 0.25% with over 97.3% of removal rate. The operating conditions are as follows: 124℃ of regeneration column bottom temperature,80 of gas/liquid ratio and 11 of inlet plate number of the absorber column for lean amine solution.
