Repositorio Institucional Universidad EAFIT ::Examinando por Materia "Sistema de control"

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Propuesta de mejora para reducir la variabilidad de ácidos grasos libres en un proceso productivo de jabón de tocador
(Universidad EAFIT, 2021) Domínguez Giraldo, Elisa; Rogeles González, Oscar
The purpose of this work is to propose improvement actions aimed at reducing the variability of free fatty acids (% FFA) in a toilet soap production process for a mass consumption company in Valle del Cauca, whose factor is important to control in order to comply with the quality standards of a soap and to be able to compete in the global market in terms of softness, texture and pH. For this, an analysis of the factors that could affect the variability of the% FFA was carried out, carrying out a model of material balances of the theoretical input and output flows in the saponification, neutralization and ion exchange reaction stages of the process and comparing it with the real data of 62 production batches obtained in the company; in addition, to evaluate the equipment for adding citric acid that enters the drying stage. The results show that the flow of citric acid is the factor that induces a greater proportion of the variability of the free fatty acids produced, so it is pertinent to carry out as an improvement proposal a cascade control system for the addition of acid, guaranteeing a system in-line measurement in a short period of time to minimize systematic operator error both for the% FFA intake in the laboratory and for the citric acid addition method.