fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

Artigo - Open Access.

Idioma principal

A NEW APPARATUS FOR THE COMPLETE DETERMINATION OF PHASE EQUILIBRIUM DATA FROM 0.05 – 10 bar

ZHANG, F.; THEVENEAU, P.; VALTZ, A.; STRINGARI, P.; AHMAR, E. EL; SOO, C. -B.; CANET, X.; FERREIRA, J. F. BENEVIDES; ROUSSEAUX, P.; COQUELET, C.;

Artigo:

Processium (French company newly implemented in Brazil) and the Centre Thermodynamic of Processes present a new apparatus based on a ―static-analytic‖ method, capable of measuring P-T-x-y data in the [0.05 - 10] bar and [-30 - 200] °C ranges. This is possible due to a new in-situ sampling mechanism allowing for operations at both vacuum and pressurized conditions without breaks, or losses in accuracy. The equipment was tested against other classical low pressure VLE techniques on the binary systems n-butane + ethanol and n-pentane + 1-butanol. The new developed technique is shown to offer comparable, if not superior, performances to existing methods, while being able to cover a pressure range previously not possible using a single technique.

Artigo:

Palavras-chave:

DOI: 10.5151/chemeng-cobeq2014-0998-21821-176270

Referências bibliográficas
  • [1] COQUELET, C.; VALTZ, A.; RICHON, D. Solubility of ethylbenzene and xylene in pure water and aqueous alkanolamine solution, J. Chem. Thermodyn., v. 40, p. 942-948, 2008.
  • [2] CHEN, R.; ZHONG, L.; XU, C. Isobaric Vapor–Liquid Equilibrium for Binary Systems of Toluene + Ethanol and Toluene + Isopropanol at (101.3, 121.3, 161.3, and 201.3) kPa. J. Chem. Eng. Data, v. 57, p. 155-165, 201
  • [3] FONSECA, J. M. S.; DOHRN, R., PEPER, S. High-pressure fluid-phase equilibria: Experimental methods and systems investigated (2005–2008). Fluid Phase Equilibr., v. 300, p. 1-69, 2011.
  • [4] GIBBS, R. E.; VAN NESS H. C. Vapor liquid Equilibria from total-pressure Measurements. A new apparatus. Ind. Eng. Chem. Fundamen., v. 11, p. 410-413, 1972.
  • [5] GHIZELLAOUI, S.; COQUELET, C.; RICHON, D.; MENIAI, A. H. Liquid- liquid equilibrium of (Water + 1-Propanol + 1- Pentanol) system at 298.15 and 323.15 K, Fluid Phase Equilib., v. 296, p. 42-45, 2010,. GUILBOT, P.; VALTZ, A.; LEGENDRE, H.; RICHON, D. Rapid on-line sampler-injector: a reliable tool for HT-HP sampling and on-line GC analysis. Analusis, v. 28, p. 426-431, 2000.
  • [6] HOLDERBAUM, T.; UTZIG, A.; GMEHLING, Vapour—liquid equilibria for the system butane/ethanol at 25.3, 50.6 and 72.5°C. Fluid Phase Equilibr., v. 63, p. 219-226, 1991.
  • [7] HUANG, X.; XIA, S.; MA, P.; SONG, S.; MA, B. Vapor–Liquid Equilibrium of N-Formylmorpholine with Toluene and Xylene at 101.33 kPa. J. Chem. Eng. Data, v. 53, p. 252-255, 2008.
  • [8] Área temática: Engenharia das Separações e Termodinâmica 7JOSEPH, M. A.; RAAL, J.D.; RAMJUGERNATH, D. Phase equilibrium properties of binary systems with diacetyl from a computer controlled vapour–liquid equilibrium still. Fluid Phase Equilibr., v. 182, p. 157-176, 2001.
  • [9] KOLBE, B.; GMEHLING, J. Thermodynamic properties of ethanol + water. I. Vapour-liquid equilibria measurements from 90 to 150 °C by the static method. Fluid Phase Equilibr., v. 23, p. 213-226, 1985.
  • [10] MALANOWSKI, S. Experimental methods for vapour-liquid equilibria. Part I. Circulation methods. Fluid Phase Equilibr., v. 8, p. 197-219, 1982.
  • [11] MCDOUGAL, R. J.; JASPERSON, L. V.; WILSON, G. M. Vapor-liquid equilibrium for several cmpounds relevant to the biofuels industry modeled with the Wilson equation. J. Chem. Eng. Data, v. 59, p. 1069-1085, 2014.
  • [12] NARASIGADU, C. Design of a static micro-cell for phase equilibrium measurements: Measurement and modelling, Ph.D Thesis, Mines ParisTech, France, 2011.
  • [13] SOO, C.-B.; EL AHMAR, E.; COQUELET, C.; RAMJUGERNATH, D.; RICHON, D. Vapor–liquid equilibrium measurements and modeling of the n-butane + ethanol system from 323 to 423 K. Fluid Phase Equilibr., v. 286, p. 79-87, 2009.
  • [14] REDDY, P.; RAAL, J.D.; RAMJUGERNATH, D. A novel dynamic recirculating apparatus for vapour–liquid equilibrium measurements at moderate pressures and temperatures. Fluid Phase Equilibr., v. 358, p. 121-130, 2013.
  • [15] VALTZ, A.; COQUELET, C.; RICHON, D. Vapor–liquid equilibrium data for the hexafluoroethane + carbon dioxide system at temperatures from 253 to 297 K and pressures up to 6.5 MPa. Fluid Phase Equilibr., v. 258, p. 179-185, 2007.
  • [16] VALTZ, A.; COQUELET, C.; RICHON, D. Solubility data for Benzene in aqueous solutions of Methyldiethanolamine (MDEA) and of Diglycolamine (DGA). Thermochim. acta, 2006, v. 443, p. 259-264.
Como citar:

ZHANG, F.; THEVENEAU, P.; VALTZ, A.; STRINGARI, P.; AHMAR, E. EL; SOO, C. -B.; CANET, X.; FERREIRA, J. F. BENEVIDES; ROUSSEAUX, P.; COQUELET, C.; "A NEW APPARATUS FOR THE COMPLETE DETERMINATION OF PHASE EQUILIBRIUM DATA FROM 0.05 – 10 bar", p. 15371-15378 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-0998-21821-176270

últimos 30 dias | último ano | desde a publicação


downloads


visualizações


indexações