Novel bio-polymer based membranes for CO2/CH4 separation

Analysis of the Techno-Economic Competitiveness of a Three-Stage Membrane Separation Process for Biogas Upgrading Using a Biopolymer-Based Mixed-Matrix Membrane

“…24,27−31 Significant progress has also been made in the development of membrane materials specifically designed for the separation of CO 2 /CH 4 mixtures from different sources, ranging from advanced polymers, such as thermally rearranged polymers and of intrinsic microporosity to metal−organic frameworks, carbon, silica, and zeolite types, and more recently, biopolymers. 32,33 Biopolymerbased membranes evaluated for biogas upgrading include microand nanocellulose, 34 branes, 20 polylactic acid (PLA)-based membranes, 33,35 and chitosan (CS)-based membranes and the formulation as mixedmatrix membranes (MMMs). 36−40 These biopolymer-based MMMs seem to be sustainable alternatives for CO 2 /CH 4 separation, pending mature development for its further implementation.…”

“…In addition to engineering toolboxes for process systems, combined approaches of materials and process design methods also offer a straightforward link among membrane performance, optimal process structure, and cost. Those studies could be extended to more complex systems, including multicomponent feed compositions, multimembrane systems, or multitarget problems, such as combined biogas upgrading and carbon capture objectives. ,− Significant progress has also been made in the development of membrane materials specifically designed for the separation of CO 2 /CH 4 mixtures from different sources, ranging from advanced polymers, such as thermally rearranged polymers and of intrinsic microporosity to metal–organic frameworks, carbon, silica, and zeolite types, and more recently, biopolymers. , Biopolymer-based membranes evaluated for biogas upgrading include micro- and nanocellulose, PVA blends in nanocomposite membranes, polylactic acid (PLA)-based membranes, , and chitosan (CS)-based membranes and the formulation as mixed-matrix membranes (MMMs). − These biopolymer-based MMMs seem to be sustainable alternatives for CO 2 /CH 4 separation, pending mature development for its further implementation.…”

Advanced and sustainable manufacturing methods of polymer-based membranes for gas separation: a review

“…Eco-friendly polymers, those derived from biological sources, or recycled substances such as cellulose, chitosan (CS), polylactic acid (PLA), polyhydroxyalkanoates (PHA), and others, are attracting significant interest from researchers in the field of polymeric membrane fabrication. This interest is driven by the desire to align industrial practices with environmental conservation and resource management (Zhu et al, 2020;Iulianelli et al, 2022;Torre-Celeizabal et al, 2023). Table 4 presents a summary of the most common bio-based polymers used in membrane production outlining their advantages and disadvantages.…”

Micro and Nanoporous Membrane Platforms for Carbon Neutrality: Membrane Gas Separation Prospects

“…[3] The significant contribution of CO 2 released into the environment can be related to several factors, such as (1) the combustion of fossil fuels, (2) gasification, and (3) CO 2 separation and purification in chemical and petrochemical plants. [4] Recently, several technologies have been introduced to lower the carbon footprint in the environment, where postcombustion carbon capture has gained the most interest, as it may be accomplished by relatively easy retrofitting of existing power plants with carbon capture equipment. However, the intrinsically low CO 2 content (5-15 %) and expensive solvent/ sorbent regeneration costs have a negative impact on its economics.…”

“…Although the COVID‐19 pandemic has temporarily reduced the emissions of CO 2 in the environment, post‐pandemic recovery has severely impacted ecological systems with record‐high carbon footprints [3] . The significant contribution of CO 2 released into the environment can be related to several factors, such as (1) the combustion of fossil fuels, (2) gasification, and (3) CO 2 separation and purification in chemical and petrochemical plants [4] …”