Why does a high desulfurizer concentration help reduce the consumption of regeneration steam?
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Why does a high desulfurizer concentration help reduce the consumption of regeneration steam? Thank you, Ra
With a high desulfurization agent concentration, the amount of lean liquid that needs to be circulated for desulfurization is lower; consequently, the amount of rich liquid that needs to be regenerated is reduced, and less steam is consumed as well.
As the solvent concentration increases, the circulation rate decreases, and steam consumption is reduced
The heat required for regeneration consists of four components: first, heating the rich liquid to the temperature at the outlet of the lean liquid; second, the heat of dissociation of hydrogen sulfide and carbon dioxide; third, heat losses during the process; and fourth, the heat required for reflux evaporation. Increasing the concentration allows for a higher acid gas load in the solution and reduces the circulation volume, primarily by reducing the heat required for the first component.
A higher concentration of the amine solution is not necessarily better. . . . . . There is an optimal value. It should be considered from various aspects