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

气体混合物分离技术向清洁和能源友好型工艺技术的转变是非常可取的。在这方面，采用膜技术是很有前途的。参考天然气调节的工业相关案例，在实际和理论实验中考察不同多孔膜的分离行为，测试不同参数对性能的影响。长期目标是建立一种基于膜的分离过程，该过程由外界对膜的影响所调节。在第一个资助阶段，压力驱动膜技术的工作假设得到了验证。然而，复杂相干还没有得到完全的启示，需要在实际实验和模拟中进一步研究。在这种背景下，我们认为继续进行已开始的工作是必要的。然而，本项目提案的主要目标是实现对使用不同多孔膜分离多气体混合物过程中发生的过程的基本理解。与天然气相媲美的人造气体混合物——除烷烃外还含有水和二氧化碳——将研究其吸附/冷凝和渗透。为了使不可凝聚气体产生凝聚相，将研究支撑在多孔层中的离子液体。

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.