Publications by authors named "Leandro Ferreira Pinto"
Article Synopsis
- * This study focuses on the thermodynamic behavior of water + 1-butanol + DES systems, specifically choline chloride + glycerol, by examining liquid-liquid equilibrium (LLE) and vapor-liquid equilibrium (VLE) at controlled conditions, employing established thermodynamic models for analysis.
- * Results include the development of phase diagrams and calculations of separation coefficients, which help evaluate the effectiveness of DESs in extraction processes, offering insights into their potential applications in industrial separations. *
Article Synopsis
- The study investigated the liquid-liquid equilibrium (LLE) behavior of sesame fatty acid ethyl ester (FAEE) and methyl ester (FAME) in glycerol and co-solvents (ethanol and methanol) after producing them through transesterification of sesame oil using KOH.
- It determined the miscibility limits and phase separation at two temperatures (313.15 K and 323.15 K) using a specialized glass cell and the turbidity-point method, revealing that higher temperatures enhance biodiesel purification.
- The findings showed that methanol was more effective than ethanol as a co-solvent and provided valuable data for improving biodiesel production efficiency by leveraging the LLE properties of these mixtures.
Article Synopsis
- EPDM is a synthetic rubber known for its excellent thermal and chemical resistance, making it a popular choice across various industries.
- The integration of nanotechnology allows for the addition of nanomaterials into EPDM matrices, enhancing its properties such as tensile strength and chemical resistance while preserving flexibility.
- This study reviews how various nanostructures affect the mechanical, thermal, and electrical characteristics of EPDM composites, aiming to inform ongoing and future research in the field of synthetic rubber nanocomposites.
Cambess (pequi) is the fruit of the tree found in the Brazilian Cerrado (savanna). Supercritical fluids have been used to effectively extract bioactive chemicals. In light of the paucity of research on the supercritical extraction of pequi, in this study, experimental tests were conducted on the extraction of pequi almond oil using supercritical CO the optimal extraction conditions were determined, and the fatty acids and active compounds in the oil were characterized.
View Article and Find Full Text PDFThis study reports an alternative method for black liquor treatment with potential for energy and process savings in the paper and pulp industry. Gasification of black liquor was carried out under sub- and supercritical conditions, varying the black liquor feed composition (0.10, 2.
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