The gas separation industry is witnessing innovation in decarbonization applications, with membranes playing a vital role due to their high energy efficiency and compact design. The report 'Gas Separation Membranes 2026-2036' by IDTechEx offers insights into the growing demand for energy security and decarbonization in markets such as biogas upgrading, carbon capture, hydrogen separation, and helium recovery. Membranes have emerged as the preferred technology for biogas upgrading, driven by their simplicity, low operational costs, and superior energy efficiency. The report outlines regional biomethane demand forecasts, market drivers for renewable natural gas, key players in the membrane industry, and advancements in membrane materials. In the realm of post-combustion carbon capture, gas separation membranes are gaining traction despite challenges faced by incumbent polymer membranes. The lower energy requirements of membranes compared to traditional amine-solvent technologies present a significant cost advantage. The market for post-combustion capture is expected to grow, with projects capable of capturing large amounts of CO2 coming online by 2025/2026. Hydrogen applications, both established and emerging, provide a promising avenue for membrane technologies. While mature applications like ammonia and methanol production have already integrated gas separation membranes, new materials such as palladium membranes are being explored for enhanced performance. The report delves into the dynamics of the hydrogen separation market, highlighting opportunities for membrane players in this sector. The development of new membrane materials is a key focus area for improving gas separation performance. The report discusses a range of emerging materials including advanced polymer materials, metals, ceramics, and composite structures. These innovations aim to enhance the efficiency and effectiveness of gas separation processes beyond what traditional polymeric membranes offer. Overall, the report provides a comprehensive outlook on the evolving landscape of gas separation membranes for decarbonization applications, offering market forecasts, insights on key players, and the potential for new materials to revolutionize the industry's energy transition efforts.