Flash evaporation issue
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Most of the methanol-rich fluid at the bottom of the reabsorption tower is sent to the upper part of the thermal regeneration tower for flashing; is carbon dioxide further separated there? So hydrogen sulfide should be the highest here?
Take a screenshot of your process and send it over; I can take a look for you?
This post was last edited by yunyousihai on 2012-2-12 at 16:54. The solubility of H2S is several times that of CO2; therefore, it is easier to separate CO2 from H2S. The proportion of CO2 separated in the flashing stage is greater than that of H2S, which can also be described as a H2S concentration enhancement process. However, the highest H2S concentration is reached in the regeneration stage of the thermal regeneration tower (also known as the H2S regeneration tower).