A new hypothesis about continuous distillation with striping gas and its application the physical refining of edible oils
DOI:
https://doi.org/10.3989/gya.021309Keywords:
Continuous distillation with striping gas, Edible oils, Physical refiningAbstract
The influence of the free fatty acid concentration in the gas inside the continuous deodorizer in continuous physical refining was studied and a hypothesis was formed to explain the results: In a continuous process of deacidification by distillation of free fatty acids at low pressure (2 - 3 mbar), high temperature (180 – 260 ºC), with stripping gas, initial free fatty acid content of oil ≤ 7.4% w/w and similar temperature for both the gas distillate inside the continuous deodorizer and the oil, in the equilibrium the ratio between the free fatty acid content of the deacidified oil and the concentration of free fatty acids in the gas inside the continuous deodorizer is constant. This hypothesis is submitted to discussion.
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Bada Gancedo JC, Prieto González MM, Xiberta Bernat J, Graciani Constante E, León Camacho M. 2002. Application two heating in physical refining of high-fa olive and sunflower oils. J. Am. Oil Chem. Soc. 79, 209-214. doi:10.1007/s11746-002-0462-1
Bada Gancedo JC, Graciani Constante E, Prieto González MªM. 2008. Procedure for the removal of fatty alcohols that produce washes, coupled to the neutralizing deodorization during the physical refining edible Oliz (Spanish patent nº2 272 181).
Davies OL. 1965. Métodos estadísticos aplicados a la investigación y la producción con especial referencia a la industria química. Ed. Aguilar. Madrid. España.
Deffense E. 1994. Refinación con vapor: comparación de la teoría con la práctica. Dossier Oleo, pp 49-57.
Graciani Constante E. 2006. Los aceites y grasas. Composición y propiedades. Editorial: A. Madrid Vicente, Ediciones. ISBN nº 84-87440-36-3. Editorial: Ediciones Mundi-Prensa. ISBN nº 84-8476-272-6, pp. 308-315.
Graciani Constante E, Bada Gancedo JC, Rodríguez Berbel, Ruiz Méndez MªV. 1994. Physical refining of edible oils using nitrogen as stripping gas. Process optimization. Grasas y Aceites 45, 132-146.
Graciani Constante E, León Camacho M. 2006a. Esquema de un programa informático para aplicar las constantes termodinámicas de formación de ácidos grasos trans a casos prácticos que se presentan en las industrias de desodorización y/o refinación de aceites. En Graciani Constante 2006. CD-ROM: E 1.
León-Camacho M, Alvarez Serrano M, Graciano Constante E. 2004. Formacion of stigmasta-3,5-diene in oilve during deodorization and/or physical refinig using nitrogen as stripping gas. Grasas y Aceites 55, 227-232. doi:10.3989/gya.2004.v55.i3.170
León-Camacho M, Ruiz-Méndez MV, Graciani Constante E. 2003. Cinética de la reacción de elaidización del ácido oleico durante la desodorización y/o refinación física industrial de las grasa comestibles. Grasas y Aceites 54, 138-144. doi:10.3989/gya.2003.v54.i2.256
León-Camacho M, Ruiz-Méndez MV, Graciani Constante MªM, Graciani Constante E. 2001. Kinetics of the cistrans isomeritation of linoleic acid in the deodorization and/or physical refining of edible fats. Eur. J. Lipid Sci. Technol. 103, 85-92. doi:10.1002/1438-9312(200102)103:2<85::AID-EJLT85>3.0.CO;2-#
Prieto González MM, Bada JC, Graciani E. 2007a. Temperature effects on the deacidification of mixtures of sunflower oil and oleic acid. J. Amer.Oil Chem. Soc.84, 473-478. doi:10.1007/s11746-007-1059-z
Prieto González MM, Bada JC, Graciani E, Lombardía I. 1999. A comparative study of two heating procedures in the physical refining of edible oils. J. Am. Oil Chem. Soc. 76, 1471-1476. doi:10.1007/s11746-999-0187-z
Prieto González MM, Bada JC, León M, Graciani E. 2007b. Optimization of deacidification of mixtures of sunflower oil and oleic acid in a continuous process. J. Amer. Oil Chem. Soc. 84, 479-487. doi:10.1007/s11746-007-1057-1
Prieto MªM, Bada JC, León-Camacho M, Graciano Constante E. 2008. Deacidification and distillates recovery in the physical refining of edible oils. Eur. J Lipid Sci. Techonol. 110, 101-110.
Ruiz-Méndez MV, Garrido-Fernandez A, Rodríguez Berbel, FC, Graciani Constante E. 1996. Relationships among the variables involved in the physical refining of olive oil usin nitrogen as stripping gas. Fett Lipid. 98, 121-125. doi:10.1002/lipi.19960980307
Tubaileh RM, Garrido-Fernández A, Ruiz-Méndez MV, León Camacho M, Graciani Constante E. 2002b. Effects of physical refining on contents of waxes and fatty alcohols of refined olive oil. J. Am. Oil Chem. Soc. 79, 101-104. doi:10.1007/s11746-002-0441-6
Tubaileh RM, Graciani Constante MªM, León Camacho M, López López A, Graciani, Constante E. 2002c. Kinetics of the decomposition of total aliphatic waxes in olive oil during deodorization. J. Am. Oil Chem. Soc. 79, 971-976. doi:10.1007/s11746-002-0589-0
Vian A, Ocón J. 1964. In Elementos de Ingeniería Química. Ed by Aguilar. Madrid. España, pp. 657.
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