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Effect of phase behavior in the hydrogenation of triglycerides under supercritical and near-critical propane
(Elsevier Science, 2009-09)
Sunflower oil was hydrogenated in a stirred-batch unit, using supercritical and near-critical propane as solvent, and Pd/γ-Al2O3 catalyst. The effect of the phase behavior on the reaction performance is analyzed. The ...
Liquid-liquid-supercritical fluid equilibria for systems containing carbon dioxide, propane, and triglycerides
(American Chemical Society, 2009-07)
The use of mixed near-critical solvents such as CO2 + propane, for vegetable oil extraction processes, has the advantage of the good solvent capacity of propane together with a nonflammable vapor phase due to the CO2 ...
Minimizing Costs in Near-Critical Bioethanol Extraction and Dehydration Processes
(American Chemical Society, 2012-06)
In the present work, we propose a model-based cost optimization for three capacities of bioethanol extraction-dehydration plants with supercritical propane. We consider alternative integration schemes between process streams ...
Thermodynamic modeling, synthesis and optimization of extraction - Dehydration processes
(Pergamon-Elsevier Science Ltd., 2000-10)
The synthesis problem of a new separation operation (dehyextraction) with near critical fluids is formulated as a mixed integer nonlinear programming (MINLP) problem. The key separation properties of the dehyextraction ...
Energy consumption minimization in bioethanol dehydration with supercritical fluids
(Elsevier Science, 2009-08)
In this work, we propose a rigorous model for bioethanol dehydration process with supercritical propane to minimize energy consumption. Thermodynamic predictions are performed with an upgraded Group Contribution with ...
Thermoplastic blend demixing by a high-pressure, high-temperature process
(John Wiley & Sons Inc, 2005-09-14)
The analysis of a thermoplastic polymer blend requires a precise separation of the blend components, which is usually performed by selective solvent extraction. However, when the components are high-molecular-weight polymers, ...
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Pt/SiO2 and Pt/HS-CeO2: An insight about the role of carbonyl interaction with supercritical CO2 or with ceria support sites in cinamyl alcohol selectivity
(Elsevier, 2013-10-02)
The catalytic hydrogenation of cinnamaldehyde employing H2 as the reductant was carried out under supercritical (sc) CO2, propane and other CO2 dense mixture, employing Pt supported on silica and high surface (HS) ceria. ...