Cintia Bernardo Gonçalves

• Abstract

  Summary:The interfacial tension is an extremely important property for the improvement of processes that involve the contact between two liquid phases, especially when applied to partially miscible systems. The objective of this research project is to obtain interfacial tension data between the phases formed in the production of biofuels and during the application of the liquid-liquid ext…

  NTERFACIAL TENSION IN LIQUID-LIQUID SYSTEMS OF INTEREST FOR THE INDUSTRY OF EDIBLE VEGETABLE OILS AND BIOFUELS, AP.R

• Abstract

  Data acquisition of physical properties, such as viscosity and density, is fundamental to the equipment and piping design and to the process optimization, as these properties affect both the energy loss through friction in fluids such as heat and mass transfer. Knowledge of these properties for systems involving fatty substances and alcoholic solvents or hexane is of great importance to o…

  Viscosities and densities of systems of interest to the oil industry and biodiesel production: experimental data, modeling and prediction, AP.R
• Reduction of cholesterol in lard by solvent, AR.EXT

• Abstract

  The determination of viscosity transporting property of essential oils, vegetable oils and biodiesel is mandatory for the chemical, pharmaceutical, petroleum and food industries. Over the past decades many mathematical models have been developed to predict the viscosity of mixtures, among them we can highlight the UNIFAC-VISCO and GC-UNIMOD models. These two models based on the theory of …

  Optimization of parameters for models based in group contribution concept applied to calculation of viscosity for non-ideal mixtures, BP.DR

• Abstract

  Surface tension is a property of interest in fatty systems, it is necessary for the understanding of the thermodynamic processes involving contact stages. This research project aims to obtain surface tension data of model systems containing fatty compounds (triglycerides, fatty acids, methyl esters and partial glycerides) and alcohol or hexane solvents, besides adjusting the data to a pre…

  Surface tension of fatty systems of interest for edible vegetable oils and biodiesel industry: experimental determination and modeling, BP.IC

• Abstract

  Oils and fats, both animal and vegetable sources, have an important role as inputs in several areas. The knowledge of their physical properties allows enhance the processes of purification by liquid-liquid extraction and the process of obtaining vegetable oils from solid matrices by solid-liquid extraction. For mixtures containing fatty esters, compiling a database of viscosity can be use…

  Physical properties of systems of interest to the oil industry and biodiesel production: determination of experimental data, modeling and prediction, BP.DR

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