CO2 Removal Unit Performance: When Actual Differs Radically from Design

In a case study of a Middle Eastern amine treating unit producing LNG quality gas with piperazine promoted MDEA, the ProTreat® mass and heat transfer rate-based simulator is used to show that process responses to changing operating conditions can be completely counterintuitive, and occasionally our expectations can be quite wrong. Sometimes lower CO2 in the raw gas does not make treating easier, the resulting very lightly loaded rich solvent may not lead to less heat load on the regenerator and using more efficient heat integration can potentially ruin the operation altogether.
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