The aim of proposed project is the development of ionic-liquid containing membranes for the separation of volatile organic compounds and pollutants from flue gases. Also development of the model, which allows testing hypotheses about non-constancy of membrane characteristics along its surface and its possible dependency on various parameters, is part of the project. By comparison with experimental data the model will also be validated. The validated model will be then used for the supported room temperature ionic liquid membrane optimisation of its operating parameters and geometry.