MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202631023855 A) filed by Indian Institute Of Technology Guwahati; and Gail India Limited on February 27, 2026, for Mixed Matrix Membrane And Membrane-Based Process Thereof For High-Selectivity Separation Of Carbon Dioxide From Methane.
Inventors include Bishnupada Mandal; Animes Kumar Golder; Shubham Kumar; Karanika Sonowal; Dharanikota Naga Phani Sai Kumar; T Nandakumar; and Rahul Sharma.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: ABSTRACT TITLE: Mixed Matrix Membrane and Membrane-Based Process Thereof for High-Selectivity Separation of Carbon Dioxide from Methane A thermally stable mixed matrix composite membrane (MMC) is provided that is fabricated based on a hydrophilic polymer, an amino functional moiety/amino compound, selectively including block copolymer, filler materials and supported by polyethersulfone gas-permeable support layer. The composite membrane demonstrated for the selective separation of at least one target gas from a binary gaseous mixture, showing high selectivity for CO2/CH4 ranging from about 44-328 and a CO2 permeance ranging from about 36to 350 GPU via a synergic combination of solution-diffusion transport mechanism, molecular sieving and facilitated transport mechanism under both dry and humid conditons that’s overcomes the traditional permeability–selectivity trade-off limitations. Figure 1A
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