This paper presents a methodology for determining the optimal cut point in pipeline batch transfers. The methodology aims to ensure the quality of products and, when possible, to maximize the product with higher economic value. The quality of the products is specified based on their purities as well as on the trace of chemical elements in their composition. The proposed methodology requires the use of interface sensors capable to monitor physical properties which can be converted into concentration of the products in the mixture. Simulations carried out with ultra-sonic interface detectors in a diesel-gasoline batch are presented to illustrate the technique.

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