Influence of the pore structure on the membrane based separation of components from natural gas and accompanying gas

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A change in the separation of gas mixtures towards clean and energy friendly process technologies is more than desirable. Very promising for this purpose is a process adapted membrane technology. By reference to the industrial relevant case of natural gas conditioning the separation behavior of different porous membranes shall be examined in practical and theoretical experiments and the influence of different parameters on the performance will be tested.Long-term objective is the establishment of a membrane based separation process which is moderated by influences brought from outside to the membrane.The working hypothesis of a pressure driven membrane technology was proven in the first funding period. However, complex coherencies have not been completely enlightened and shall be further examined in practical experiments and simulations. Against this background we think the continuation of the started work is necessary.However, the main goal of the present project proposal is the achievement of a fundamental understanding of occurring processes during the separation of multinary gas mixtures using different porous membranes. Artificial gas mixtures comparable to natural gas - which contain water and carbon dioxide beside alkanes - will be investigated towards adsorption/condensation and permeation. In order to generate a condensed phase for non-condensable gases ionic liquids supported in porous layers will be investigated.