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    Development of Ion-Jelly membranes

    Year: 2013

    Journal: Separation and Purification Technology, 106, pp 22-31, 20130926

    Authors: Ricardo M. Couto, Tânia Carvalho, Luísa A. Neves, Rui M. Ruivo, Pedro Vidinha, Alexandre Paiva, Isabel M. Coelhoso, Susana Barreiros, Pedro C. Simões

    Organizations: REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

    In this work for the first time Ion-Jelly membranes were developed and characterized. Ion-Jelly is anew green and sustainable gel material, obtained by addition of an ionic liquid to gelatine. Three differentionic liquids ([EMIM][DCA], [BMIM][DCA] and [BMPyr][DCA]), were used to study the difference in themembrane properties introduced by changes in the ionic liquid cation. The physical properties of themembranes were characterized by traction, contact angles, and SEM. These membranes were furthertested in separation processes using supercritical carbon dioxide for the fractionation of a model mixturemade of oleic acid and squalene and for the separation of biodiesel products and reagents. The permeabilityto pure gases (H2, N2, O2, CO2 and CH4) was also determined and ideal selectivities calculated.