MEDA desulfurization regeneration
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When regenerating MDEA for desulfurization, raising the temperature facilitates regeneration and also helps to reduce the tower pressure. Is it more reasonable to control the pressure of the regeneration tower or the regeneration temperature?
The MEDA regeneration requires temperature control; if the temperature is too high, it will decompose. Secondly, the regeneration pressure is reduced, but to a limited extent; too low a pressure can lead to amine loss.
The options for adjusting temperature and pressure are limited; generally, efforts are made to set both at their most appropriate values, with no clear priority given to either one.
The temperature must be controlled to prevent the decomposition of methyl, while pressure control is beneficial for separation; however, the gas velocity in the tower must not be too high, as this could lead to liquid entrainment
Temperature control of the reboiler heating source is fundamental to operation