State of the art and prospects of chemically and thermally aggressive membrane gas separations: Insights from polymer science

Advanced methods for analysis of mixed gas diffusion in polymeric membranes

“…It is emerging or under study for other separations, such as biogas upgrading (CO2/CH4) [8,9] or carbon capture from flue gas (CO2/N2) [10][11][12]. The successful introduction of new applications requires the best possible materials and process configuration for that specific separation [13], and this, in turn, requires precise knowledge of their transport properties.…”

Gas separation membranes obtained by partial pyrolysis of polyimides exhibiting polyethylene oxide moieties

“…Membrane gas separation offers interesting potential advantages over conventional separations (e.g., absorption, distillation, adsorption), including energy efficiency, small footprint, compact design and possibility to be integrated with other technologies, giving rise to process intensification [5][6][7][8][9][10]. The search for membrane materials exhibiting enhanced gas separation properties is being increasingly explored to improve existing applications (e.g., air separation, hydrogen recovery and CO 2 /CH 4 and CO 2 /N 2 separations), and develop new ones (e.g., olefin/paraffin separations and CO 2 , H 2 S removal from natural gas, separation at high temperature) [4,[11][12][13][14].…”

Evaluating the Experimental Uncertainty in Gas and Vapor Sorption/Adsorption Measurements: Fundamental Considerations and Experimental Design Implications

“…As worldwide energy demand increases, a more rational use of natural resources has become necessary. As 15% of the world’s energy consumption is due to chemical separations, membrane technologies, used as both stand-alone and integrated processes, provide a viable pathway toward energy-efficient separations. − Although energy-efficient and eco-friendly separations are possible, the perceived risk in implementing them must be minimal. The availability of high-quality, accurate, and reliable transport data (e.g., sorption and adsorption isotherms, permeability, and selectivity data) is one of the major roadblocks to the design of new processes and to the evaluation of their technical and economic feasibility. ,− …”