Our depropanizer has flooded condensers. Over the years we have tried to improve the pressure conrol in this tower without success. The last proposed control scheme will control the accumulator pressure with the level in the drum. That is, when the pressure increases, the overhead release will increase which will lower the accumulator level to expose more surface area in the ovh condensers. When the pressure decreases, less will be released which will increase the level in the accumulator, to reduce the surface area in the overhead condensers. Is this effective? Can I control the tower overhead temperature with this configuration? Will I ever overflow or empty the accumulator drum completely?
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