Julio Romero Figueroa

My research activities are focused on the study and design of novel processes based on the use of membrane technologies and their synergic coupling with supercritical fluids and ionic liquids. Currently, several projects on the design and adaption of these green technologies are in progress to be applied to different fields such as the production of biofuels, treatment of polymers and their modifications, food processing, extraction of metal species and the treatment of wastewaters and gases.
  • 2002 – Doctor en Ingeniería de Procesos, Universidad de Montpellier.
  • 1999 – Ingeniero Civil Químico, Universidad de Santiago de Chile.


  •  2017-2019 –ProyectoBMBF Alemania– “Sustainable functionalization of packaging films by supercritical CO2(ImpregPack)”, Fraunhofer Institute/Universidad de Santiago de Chile. Investigadores resposnables: Carolin Hauser, María José Galotto.
  • 2016-2018: Proyecto Fondef ID15I10611– “Concentración de extractos fenólicos y purificación de hidroxitirosol a partir de RILes de la industria olivícola utilizando perstracción”. Investigador Responsable: Dr. Carlos Zambra, Investigador Principal.
  • 2015-2017: Nucleo Milenio “Centro Interdisciplinario de Líquidos Iónicos” (Renovación) – Instituciones albergantes: Univ. de Chile y Pontificia Univ. Católica de Chile, Inv. Resp.: Renato Contreras.
  • 2015-2017: Programa de Inserción de Capital Humano Avanzado en la Academia, Proyecto nº 79140047– “Fortalecimiento del área de procesos de separación avanzada y solventes alternativos del Departamento de Ingeniería Química”, Investigador Inserto: Dr. Esteban Quijada – Investigador Patrocinador.
  • 2014-2018: Proyecto FONDECYT Regular nº1140208– “Development of asymmetric ionic liquid-based membranes for pervaporation of biobutanol” – Investigador Responsable.
  • A. Hasanoğlu, J. Romero, A. Plaza, W. Silva, Gas-filled membrane absorption processes: a review of three different applications to describe the mass transfer by means of a unified approach. Desalination and Water Treatment , 51 (2013), Issue 28-30, 5649-5663. (http://dx.doi.org/10.1080/19443994.2013.769603)
  • H. Valdés, R. Sepúlveda, J. Romero, F. Valenzuela, J. Sanchez, Near critical and supercritical fluid extraction of Cu(II) from aqueous solutions using a hollow fiber contactor. Chemical Engineering and Processing: Process Intensification, 65 (2013), 58-67.(http://dx.doi.org/10.1016/j.cep.2012.12.005)
  • Plaza, A., Merlet, G., Hasanoglu, A., Isaacs, M., Sanchez, J., and Romero, J.,Separation of butanol from ABE mixtures by sweep gas pervaporation using a supported gelled ionic liquid membrane: Analysis of transport phenomena and selectivity. Journal of Membrane Science 444 (2013), 201-212.(http://dx.doi.org/10.1016/j.memsci.2013.04.034)
  • R. Arce, P. Márquez, F. Herrera, M. J. Aguirre, J. Romero, Sulfite oxidation mediated by ortho-phenylenediamine / Co(II)-tetrakis(para-aminophenyl)porphyrin copolymers in acid medium. Journal of the Chilean Chemical Society 58(4) (2013), 1982-1985. (http://dx.doi.org/10.4067/S0717-97072013000400016)
  • A. Torres, J. Romero, A. Macán, M.J. Galotto, A. Guarda, Near critical and supercritical impregnation and kinetic release of thymol in LLDPE films used for Food Packaging. The Journal of Supercritical Fluids 85 (2014), 41–48.(http://dx.doi.org/10.1016/j.supflu.2013.10.011)
  • R. Sepúlveda, J. Romero and J. Sánchez, Copper removal from aqueous solutions by means of ionic liquids containing a β-diketone and the recovery of metal complexes by supercritical fluid extraction. Journal of Chemical Technology and Biotechnology 89 (2014), Issue 6, 899-908.(http://dx.doi.org/10.1002/jctb.4330)
  • H. Estay, E. Troncoso, J. Romero,Design and cost estimation of a gas-filled membrane absorption (GFMA) process as alternative for cyanide recovery in Gold mining. Journal of Membrane Science 466 (2014), 253-264. (http://dx.doi.org/10.1016/j.memsci.2014.04.045)
  • Plaza, A., Romero, J., Silva, W., Morales, E., Torres, A. and Aguirre, M.J.,Extraction and quantification of SO2content in wines using a hollow fiber contactor.Food Science and Technology International 20(7) (2014), 501-510.(http://dx.doi.org/10.1177/1082013213494900)
  • R. Arce, M.J. Aguirre and J. Romero,Sensor for Quantitative Analytical Determination of Sulphite in Wine Using a System of Modified Electrode and a Membrane Absorption System, ECS Transactions 64(1) (2014), 37-42.(http://dx.doi.org/10.1149/06401.0037ecst)
  • R. Arce, J. Romero, M.J. Aguirre,A glassy carbon electrode modified by a copolymer of Co-tetrakis (para-aminophenyl)porphyrin and ortho-phenylenediamine. Characterization and electrocatalytic sulfite oxidation behavior of a basic extract from red wine, Journal of Applied Electrochemistry44 (2014), Issue12, 1361-1369.(http://dx.doi.org/10.1007/s10800-014-0750-7)
  • R. Arce, M.J. Aguirre, J. Romero, Electrooxidation of Free Sulfite by an Integrated System of Glassy Carbon Modified Electrodes with Nickel Phthalocyanines and Membrane Absorber in Red WineInternational Journal of Electrochemical Science 9 (2014), 7916 – 7924. (www.electrochemsci.org/papers/vol9/91207916.pdf)
  • A. Torres, C. Ramirez, J. Romero, G. Guerrero, X. Valenzuela, A. Guarda, M.J. Galotto, Experimental and theoretical description of the mass transfer during the Bisphenol A release from polycarbonateinto regulated EU food simulant. European Food Research and Technology 240 (2015), Issue 2, 335-343.(http://dx.doi.org/10.1007/s00217-014-2333-6)
  • Younas, M., Druon-Bocquet, Romero, J., Sanchez, J., Experimental and theoretical investigation of distribution equilibria and kinetics of copper(II) extraction with LIX 84 I and TFA. Separation Science and Technology, 50 (2015), Issue 10, 1523-1531.(http://dx.doi.org/10.1080/01496395.2014.978943)
  • R. Cabezas, A. Plaza, G. Merlet and J. Romero, Effect of fluid dynamic conditions on the recovery of ABE fermentation products by membrane-based dense gas extraction, Chemical Engineering and Processing: Process Intensification, 95 (2015), 80-89.(http://dx.doi.org/10.1016/j.cep.2015.04.003)
  • A. Rojas, D. Cerro, A. Torres, M.J. Galotto, A. Guarda, J. Romero,Supercritical impregnation and kinetic release of 2-nonanone in LLDPE films used for active food packaging. Journal of Supercritical Fluids, 104 (2015), 76-84.(http://dx.doi.org/10.1016/j.supflu.2015.04.031)
  • C. Espinoza, J. Romero, L. Villegas, L. Cornejo-Ponce, R. Salazar, Mineralization of the textile dye acid yellow 42 by solar photoelectro-Fenton in a lab-pilot plant. Journal of Hazardous Materials, 319, (2016), 24-33 (http://dx.doi.org/10.1016/j.jhazmat.2016.03.003)
  • R. Arce; C. Báez; J.P. Muena; M.J. Aguirre; J. Romero, Electrochemical method for the determination of sulfite in wines by electrochemical response using a membrane absorber system, Journal of Chilean Chemical Society, 61 Nº4 (2016), 3206-3210. (http://dx.doi.org/10.4067/S0717-97072016000400011)
  • E. Quijada-Maldonado, M.J. Torres, J. Romero,Solvent extraction of Molybdenum (VI) from aqueous solution using ionic liquids as diluents. Separation and Purification Technology, Volume 177 (2017), 200–206 (http://dx.doi.org/10.1016/j.seppur.2016.12.045)
  • Silva, W., Romero, J., Morales, E., Mendoza, L. and Cotoras, M.,Red wine extract obtained by membrane-based supercritical fluid extraction: preliminary characterization of chemical properties. Brazilian Journal of Chemical Engineering Vol. 34 (2017), No. 02, 567 –581 (http://dx.doi.org/10.1590/0104-6632.20170342s20150631)
  • Younas, M., Druon-Bocquet, Romero, J., Sanchez, J.,Numerical modelling and simulation of membrane-based extraction of copper (II) using hollow fiber contactors. Desalination and Water Treatment, 63 (2017), 113-123.(http://dx.doi.org/10.5004/dwt.2017.20169)
  • A. Torres, E. Ilabaca, A. Rojas, F. Rodriguez, M.J. Galotto, A. Guarda, C. Villegas, J. Romero, Effect of processing conditions on the physical, chemical and transport properties of polylactic acid films containing thymol incorporated by supercritical impregnation. European Polymer Journal, 89 (2017), 195-210.(http://dx.doi.org/10.1016/j.eurpolymj.2017.01.019)
  • R. Sepúlveda, J. Castillo, A. Plaza, J. Sánchez, A. Torres and J. Romero,Improvement of recovery performance in the solvent extraction of Cu(II) using [bmim][Tf2N] and a β-diketone as extractant and its stripping with supercritical carbon dioxide. Journal of Supercritical Fluids, 128 (2017), 26-31 (https://doi.org/10.1016/j.supflu.2017.05.003)
  • G. Merlet, F. Uribe, C. Aravena, M. Rodríguez, R. Cabezas, E. Quijada-Maldonado, J. Romero, Separation of fermentation products from ABE mixtures by means of perstraction using imidazolium-based ionic liquids as extractants. Journal of Membrane Science, 537 (2017), 337-343.(https://doi.org/10.1016/j.memsci.2017.05.045)
  • C. López de Dicastillo, L. Garrido, N. Alvarado, J. Romero, J. Palma, M.J. Galotto, Improvement of polylactide properties through nanocellulose embedded in electrospun nanofibers. Nanomaterials, 7 (5) (2017) , 106.(http://doi.org/10.3390/nano7050106)
  • A. Rojas, A. Torres, F. Martínez, L. Salazar, A. Guarda, M.J. Galotto, J. Romero.Assessment of kinetic release of thymol from LDPE nanocomposites obtained by supercritical impregnation: effect of depressurization rate and nanoclay content. European Polymer Journal, 93 (2017), 294-306.(http://doi.org/10.1016/j.eurpolymj.2017.05.049)
  • C. Villegas, A. Torres, M. Rios, A. Rojas, J. Romero, C. López de Dicastillo, X. Valenzuela, M. J. Galotto, A. Guarda, Supercritical impregnation of cinnamaldehyde into polylactic acid as a route to develop antibacterial food packaging materials. Food Reseach International, 99 (Part 1) (2017),  650-659. (https://doi.org/10.1016/j.foodres.2017.06.031)
  • N. Alvarado, J. Romero, A. Torres, C. López de Dicastillo, A. Rojas, M.J. Galotto, A. Guarda, Supercritical impregnation of thymol in poly(lactic acid) filled with electrospun poly(vinyl alcohol)-cellulose nanocrystals nanofibers: Development an active food packaging material. Journal of Food Engineering, 217 (2018), 1-10. (https://doi.org/10.1016/j.jfoodeng.2017.08.008)
  • H. Estay, E. Troncoso, R. Ruby-Figueroa, J. Romero, Performance evaluation of mass transfer correlations in the GFMA process: A review with perspectives to the design. Journal of Membrane Science, 554 (2018), 140-155. (https://doi.org/10.1016/j.memsci.2018.02.064)
  • M. Yañez, B. Matsuhiro, S. Maldonado, R. González, J. Luengo, O. Uyarte, D. Serafine, J. Romero, R. Torres, M. Kogan, Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: obtention and physicochemical characterization. Cellulose (Accepted 2018) (https://doi.org/10.1007/s1057).
  • E. Quijada-Maldonado, F. Sánchez, B. Pérez, R. Tapia, J. Romero,Task-specific ionic liquids as extractants for the solvent extraction of molybdenum (VI) from aqueous solution using different commercial ionic liquids as diluents. Industrial & Engineering Chemistry Research (Accepted 2018).
  • H. Estay, E. Troncoso, R. Ruby-Figueroa, J. Romero,Assessment of industrial modules to design a GFMA process for cyanide recovery based on a phenomenological model. Processes (Accepted 2018).
  • C. López de Dicastillo, C. Villegas, L. Garrido, K. Roa, A. Torres, M. J. Galotto, A. Rojas, J. Romero, Modifying active compound release kinetic using supercritical impregnation process to incorporate an active agent into PLA electrospun mats. Polymers (Accepted 2018).
  • J. López, A. Vega-Galvez, J. Romero, K. Di Scala, K. Stucken, M.J. Torres-Ossandón, Effects of high hydrostatic pressure processing and supercritical fluid extraction on bioactive compounds and antioxidant capacity of Cape gooseberry pulp (Physalis peruviana L.). Journal of Supercritical Fluids (Accepted 2018).