June 2008

Special Report: Process/Plant Optimization

Improve amine absorber operations

Follow these three easy steps to find more flexibility in absorber systems

Optimizing amine absorption plants requires evaluating several key process parameters that affect unit capabilities.1,2 Process engineers must identify those parameters to improve final results. Some existing guidelines can identify priorities when a specific case is studied.3 For example, a systematic procedure based on process sensitivity analysis is used in a case study to evaluate an existing diethanolamine (DEA) trayed-absorber column used to sweeten sour naphtha recycling gas. Although a case study is used, the procedure can be extended to evaluate other amine absorption systems. The DEA absorber studied here is part of the hydrotreatment unit of Petrogal, S.A. in Sines, Portugal.

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