Advanced Membrane Science and Technology for Sustainable Energy and Environmental Applications
11 - Polymeric membranes for natural gas processing
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Plasticization mitigation strategies for gas and liquid filtration membranes - A review
2023, Journal of Membrane ScienceCitation Excerpt :These effects can be mitigated by mixing the polymeric matrix with low molecular weight compounds or other polymers to reduce the degree of crystallization in the bulk material and improve the chain flexibility [15]. Dense membranes, which rely on solution-diffusion, including those used for gas separation, nanofiltration and reverse osmosis, are well-established in applications such as selective solvent/solute separation and recovery, as well as for the removal and concentration of liquid or gaseous organic compounds [10,16]. These energy-efficient membrane-based solvent separation processes have great potential in gas purification and solute extraction of fine chemicals like pharmaceuticals and petrochemicals [17].
Novel bio-polymer based membranes for CO<inf>2</inf>/CH<inf>4</inf> separation
2022, International Journal of Greenhouse Gas ControlCitation Excerpt :On the other hand, CO2/CH4 membrane gas separation represents a consolidated option, successfully applied in industry, sometimes resulting more competitive than the traditional operations due to an easy process engineering, reduced footprint, lower energy requirements, flexibility in scaling up and modularity (Iulianelli and Drioli, 2020). In this contest, several studies proposed the utilization of polymeric membranes for CO2/CH4 separation (Iulianelli and Drioli, 2020, Carta et al., 2013, Kentish, 2011) as well as other membrane solutions (Brunetti et al., 2017, Li et al., 2013, Vu, Koros, and Miller, 2003) or using different membrane materials (Sridhar, Aminabhavi, and Ramakrishna, 2007, Du, Dal-Cin, Robertson, and Guiver, 2012, He, 2018) to upgrade biogas and recover bio-CH4 as a renewable energy source. However, although the membrane gas separation itself is recognized as an eco-friendly process, a step-forward towards an improvement of the overall technology in terms of sustainability is represented by the utilization of the bio-based materials (i.e. bio-polymers) for membranes fabrication (Russo et al., 2021).
The effect of a superhydrophobic coating on moisture absorption and tensile strength of 3D-printed carbon-fibre/polyamide
2021, Composites Part A: Applied Science and ManufacturingGas-liquid membrane contactors for carbon dioxide separation: A review
2021, Chemical Engineering JournalCitation Excerpt :Carbon dioxide (CO2) is a major focus of separations research as it is a major greenhouse gas and an impurity in natural gas. Raw natural gas can contain a considerable amount of CO2 that must be removed because it can cause corrosion to pipelines and equipment, reduce the heating value of the gas and prevent effective natural gas liquefaction [1]. Traditionally, CO2 absorption and subsequent desorption into an amine solvent has been used for this purpose, due to its high reactivity and selectivity.
Membrane engineering: Latest advancements in gas separation and pre-treatment processes, petrochemical industry and refinery, and future perspectives in emerging applications
2020, Fuel Processing TechnologyCitation Excerpt :Hence, industrially the membrane based gas separation process consists of two stages as schematically sketched by the natural gas membrane based processing with CH4 loss lower than 3% (then, not lower than the conventional amine based plants utilization), Fig. 3. Nevertheless, the quality of the natural gas sweetening process may depend on several factors [65,66] and, among them, CO2 concentration in the feed is particularly important to achieve the standards requested for the natural gas sweetening in pipelines [65]. Hence, a whole membrane based process could not be sufficient for it, whereas an integrated and/or hybrid system could be successful, Fig. 4.
A Microporous Poly(Arylene Ether) Platform for Membrane-Based Gas Separation**
2024, Angewandte Chemie - International Edition