Construção de protótipo de um módulo didático para o estudo do equilíbrio de fases líquido-vapor a baixa pressão

Abstract

This study aimed the development of a didactic module prototype designed to facilitate the understanding of vapor-liquid phase equilibrium at low pressures, directed to chemical engineering students. The primary motivation for the development of this module lies in the complexity students face when assimilating theoretical concepts related to vapor-liquid phase equilibrium, which holds significant relevance in the chemical industry. The employed methodology included the project of the experimental module, covering stages such as calibrations, solvent deaeration, operational procedures, and, finally, validation through comparison with the literature. The evaluated system was the water-CO2 binary mixture at 25 ºC. The operating pressure, limited by equipment components, varied from 2 to 3.2 bar. The determined experimental data allows the observation that solubility is directly related to pressure, demonstrating the effectiveness of the module. The results found, when compared with the literature, were close, validating both the module and the employed methodology. In conclusion, this study emphasizes that the developed experimental module can be a valuable contribution to enhancing the teaching of chemical engineering, enabling students and helping them understand theoretical concepts and practical application in the industry.