Phase Equilibrium At High Pressures
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. PHASE BEHAVIOR DATA AND THERMODYNAMIC MODELING OF THE BINARY SYSTEM {CO2 + COUMARIN} AT HIGH PRESSURES
Abstract In this work, vapor - liquid (VLE) equilibrium for the binary system carbon dioxide (1) + coumarin (2) at high pressures was measured by a static synthetic method using a variable-volume view cell. Experimental data were obtained in the temperature range of 318 - 338 K and pressures up to 20 MPa. Coumarin molar fraction ranged from 3.0x10-3 to 6.0x1
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. A subdivision algorithm for phase equilibrium calculations at high pressures
Phase equilibrium calculations at high pressures have been a continuous challenge for scientists and engineers. Traditionally, this task has been performed by solving a system of nonlinear algebraic equations originating from isofugacity equations. The reliability and accuracy of the solutions are strongly dependent on the initial guess, especially due to th
Brazilian Journal of Chemical Engineering. Publicado em: 2007-12
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3. Phase behavior of olive and soybean oils in compressed propane and n-butane
The aim of this work is to report the experimental data and thermodynamic modeling of phase equilibrium of binary systems containing soybean and olive oils with propane and n-butane. Phase equilibrium experiments were carried out using the static synthetic method in a high-pressure variable-volume view cell in the temperature range from 30 to 70ºC and varyi
Brazilian Journal of Chemical Engineering. Publicado em: 2006-09
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4. Application of interval analysis for gibbs and helmholtz free energy global minimization in phase stability analysis
The tangent plane criterion has become important for a correct solution evaluation phase and chemical of equilibrium problem. This method, applicable to single and multiphase systems, is mainly used for a single equation of state modeling all phases involved. The present work is mainly concerned with the application of interval analysis methods for global en
Brazilian Journal of Chemical Engineering. Publicado em: 2006-03
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5. EquilÃbrio de Fases de Sistemas CO2/Hidrocarboneto/Ãgua a Altas PressÃes / Balance of Phases of CO2/Hidrocarboneto/Ãgua Systems the High Pressures
A injeÃÃo de diÃxido de carbono (CO2) tem sido utilizada como mÃtodo secundÃrio para extraÃÃo de petrÃleo, como, por exemplo, na exploraÃÃo de campos maduros. O CO2 injetado solubiliza-se no Ãleo provocando diminuiÃÃo da sua viscosidade, aumento do volume e reduÃÃo da tensÃo interfacial na superfÃcie de contato com a Ãgua, facilitando assim
Publicado em: 2002
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6. Remoção do colesterol e fracionamento do oleo de manteiga com dioxido de carbono supercritico
Growing consumer search for low fat food has led to an increased demand for skim milk and subsequent surplus of butter, a by-product in skim milk production. At the same time butter has been loosing markets for low cholesterol, low fat products such as margerine. One way to solve this problem is form new products from milk fat. With the fractionation of the
Publicado em: 1996