A5044230230- Membrane Separation and Gas Transport
- Membrane Separation Technologies
- Carbon Dioxide Capture Technologies
- Membrane-based Ion Separation Techniques
- Covalent Organic Framework Applications
- Muon and positron interactions and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Advancements in Battery Materials
- Extraction and Separation Processes
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Phase Equilibria and Thermodynamics
- CO2 Sequestration and Geologic Interactions
- Advanced Battery Materials and Technologies
- Graphene research and applications
- Ionic liquids properties and applications
- Zeolite Catalysis and Synthesis
- Electrospun Nanofibers in Biomedical Applications
- Polymer Foaming and Composites
- Industrial Gas Emission Control
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Adsorption, diffusion, and thermodynamic properties of materials
- Catalysts for Methane Reforming
- Polymer crystallization and properties
University of Edinburgh
2016-2025
ITRI International
2013
University of Bologna
2006-2012
The University of Texas at Austin
2008-2009
In recent years, Carbon Capture and Storage (Sequestration) (CCS) has been proposed as a potential method to allow the continued use of fossil-fuelled power stations whilst preventing emissions CO2 from reaching atmosphere. Gas, coal (and biomass)-fired can respond changes in demand more readily than many other sources electricity production, hence importance retaining them an option energy mix. Here, we review leading capture technologies, available short long term, their technological...
Ultrapermeable benzotriptycene-based PIMs show exceptional gas selectivities that define new positions for the CO<sub>2</sub>/CH<sub>4</sub> and CO<sub>2</sub>/N<sub>2</sub> Robeson upper bounds.
A novel polymer of intrinsic microporosity (PIM) was prepared from a diaminobenzotriptycene monomer using polymerization reaction based on Tröger's base formation. The (PIM-BTrip-TB) demonstrated an apparent Brunauer, Emmet, and Teller (BET) surface area 870 m2 g-1, good solubility in chloroform, excellent molecular mass, high inherent viscosity provided robust thin films for gas permeability measurements. is highly permeable (e.g., PH2 = 9980; PO2 3290 Barrer) with moderate selectivity...
Methyl or <italic>t</italic>-butyl substituted spirobifluorenes greatly enhance PIM permeability.
The increasing demand for environmentally friendly production of alkaline and acidic materials has boosted the advancement electrodialysis with bipolar membranes (EDBM) as an efficient sustainable technology. In this context, study aims to optimize EDBM system performance minimize its environmental impact. Specifically, work focuses on use concentrated brines in or acid channels innovative schemes reduce freshwater consumption. Two different commercial monopolar membrane sets were tested...
The enhancement of gas and vapor transport rates induced by the addition fumed silica nanoparticles to fluorinated glassy polymers is interpreted quantitatively modeled considering additional free volume created incorporation filler. That effect can be evaluated accurately from solubility data, using NELF model. CH4 CO2 in matrices Teflon AF1600 AF2400, filled with variable amounts nanoparticles, was measured at 35 °C; n-C4 n-C5 vapors, as well their diffusivity dilation same polymer...
The impurities present in carbon dioxide (CO2) streams for Carbon Capture and Storage (CCS) schemes are extremely important CO2 pipeline ship transportation affecting, instance, the range of operation, safety considerations, fracture, cracking, corrosion control, dispersion event a release, fluid density, operating pressure temperature quantity that can be transported. levels potential captured from capture facilities will differ between sources also technologies installed at emission...
In recent years, the growing interest in use of Ion-exchange membranes, treatment highly concentrated multi-ionic brines for selective recovery critical elements, has prompted research fundamental models capable predicting IEMs selectivity towards like-charged species. Prior studies have proposed ion partitioning limited to single-salt solutions that were validated only up moderate salt concentrations. this work, we developed a novel extension Manning counter-ion condensation model, aiming...
Gas transport properties of PIM-EA(H2)-TB, a microporous Tröger’s base polymer, were systematically studied over range pressure and temperature. Permeability coefficients pure CO2, N2, CH4 H2 determined for upstream pressures up to 20 bar temperatures 200 °C. PIM-EA(H2)-TB exhibited high permeability in absence plasticization phenomena. The coefficient increased with increasing temperature while CO2 decreased as expected glassy polymer. diffusion solubility also analysed individually...
Fourier transform infrared–attenuated total reflectance (FTIR-ATR) spectroscopy was used to study in detail water vapor sorption a short-side-chain perfluorosulfonic acid ionomer membrane suitable for use as electrolyte proton exchange membranes fuel cells. The analysis of the IR spectra, at different values relative humidity (0.00–0.50) and 35 °C, allows identify four types molecules, characterized by decreasing strength interaction with polymer sulfonate groups. actual concentration...
Mixed matrix membranes were synthesized from poly(amide-b-ethylene oxide) (PEBAX MH1657) and zeolite 13X by a solvent casting method for CO2/N2 separation. The gas permeation properties of neat PEBAX 5, 10 15%(wt.) loadings determined pure CO2 N2 via constant volume – variable pressure method. An increase in permeability was observed with increasing loading 13X. greatest selectivity 47 at the maximum loading. Results possibly suggest an effect on FFV inclusion
Mixed-linker zeolitic imidazolate frameworks (ZIFs) with the sodalite (sod) topology type and based on ZIF-7 have been prepared by direct synthesis from mixtures of benzimidazole (BzIm) 4,5-dichloroimidazole (dcIm). Incorporation dcIm into structure gives ZIF-7/COK-17 hybrids rhombohedral symmetry that do not show "open-to-closed form" structural transition upon solvent removal exhibited ZIF-7. They Type I isotherms for low molecular weight gases high affinity CO2 even at partial pressures....
The instability of gas permeation rates over time in PIM-1-based membranes is one the obstacles preventing implementation this technology on larger scales. addition porous materials to PIM-1 matrix a known process reduce aging effects membranes. Many solids various chemical natures have been tested, ranging from inorganic inorganic–organic hybrids completely organic materials. Here, we report synthesis two hyper-cross-linked polymers (HCPs) based diphenyl sulfide monomer, synthesized either...
Numerous studies have been reported on CO2 facilitated transport membrane synthesis, but few works dealt with the interaction between material synthesis and modelling aspects for optimization purposes. In this work, a hybrid fixed-site carrier was prepared using polyallylamine 10 wt% polyvinyl alcohol 0.2 graphene oxide. The tested feed gases different relative humidity at partial pressures. Selected models in literature were used to fit experimental data good agreement. key dimensionless...
An optimized Friedel–Crafts based methodology used to prepare high surface area and pore volume hyper-cross-linked polymers (HCPs) is presented here. A significant reduction in catalyst quantities resulted an HCP showing SSABET of 905 m2/g total ≈1.12 cm3/g. Spectroscopic investigations (DR-FTIR SS-NMR) reveal that lowering the amount avoid uncontrolled reaction pathways. For material, CO2 uptakes are 2.55 mmol/g at 273 K 1 bar. High pressure measurements 298 uptake 7.33 24 bar 3.84 CH4 42
Gas-to-Liquid (GTL) technology efficiently converts natural gas into valuable liquid products, with membrane reactors (MRs) offering a promising method to optimize process efficiency and environmental sustainability. In this study, the modeling simulation of catalytic MR's performance were investigated compared packed-bed reactor (PBR) for two processes: steam methane reforming (SMR) production synthesis gas, Fischer-Tropsch (FTS) fuel, both under varying operating conditions. Various...
Biomethane has been highlighted as an energy transition carrier in the quest for a resilient bioeconomy. Advances its production process are accompanied by need new efficient separation...