Sustainable technologies applied to energy-related applications should develop a pivotal role in the next decades. In particular, carbon dioxide capture from flue gases emitted by fossil-fueled power plants play controlling and reducing greenhouse effect. Therefore, development of new materials for purposes has merged as central research line, which many alternatives have been proposed. Ionic liquids (ILs) emerged one most promising choices capture, but spite their properties, some serious...

The capture of CO2 from flue gases derived fossil-fueled power plants and the absorption CO2/H2S for natural gas sweetening purposes are two relevant industrial problems closely related to very important environmental, economical, technological that need be solved. Amine-based technologies widely used in industry these purposes, but they lead several have led many researchers pose new alternatives. Ionic liquids (ILs) emerged last few years as promising acid absorbents, thus, this remarkable...

The large collection of thermophysical properties data for liquids available in the open literature is analyzed, describing its importance industrial purposes. Although there has been a boom measurements these fluids past decade, reported analysis shows that studies have centered on limited number fluids, whereas new family ionic lacking. Measurements performed temperature ranges, and pressure effects are extremely scarce literature; remarkable differences among from different sources...

Efficient CO2 scrubbing without a significant energy penalty remains an outstanding challenge for the fossil fuel-burning industry where aqueous amine solutions are still widely used. Porous materials have long been evaluated next generation adsorbents. polymers, robust and inexpensive, show promise as feasible capture of from warm exhaust fumes. We report syntheses porous covalent organic polymers (COPs) with adsorption capacities up to 5616 mg g−1 (measured at high pressures, i.e. 200 bar)...

Choline chloride + levulinic acid deep eutectic solvent is studied as a suitable material for CO2 capturing purposes. The most relevant physicochemical properties of this are reported together with the solubility function temperature. corrosivity showing better performance than amine-based solvents. A theoretical study using both density functional theory and molecular dynamics approaches carried out to analyze fluid from nanoscopic viewpoint, their relationship macroscopic behavior system...

Abstract Carbon dioxide capture and separation requires robust solids that can stand harsh environments where a hot mixture of gases is often found. Herein, the first comprehensive syntheses porous sulfur‐bridged covalent organic polymers (COPs) their application for carbon in warm conditions wide range pressures (0–200 bar) are reported. These COPs store up to 3294 mg g −1 at 318 K 200 bar while being highly stable against heating 400 °C. The capacity also not hindered upon boiling water...

The effect of water on the properties and nanostructuring prototypical choline chloride: ethylene glycol deep eutectic solvent is studied using a combined experimental theoretical approach. reported results showed large hydrophilic character solvent, which based ability molecules to be hydrogen bonded different components in efficient way. fluid largely dependent concentration range but can maintained up reasonably content. Therefore, content these solvents may used for tuning controlling...

Sustainable technologies applied to energy-related applications should develop a pivotal role over the next decades. Therefore, development of new materials for old processes has merged as central research line lately. Deep eutectic solvents (DESs) have been recently considered alternative and economic task-specific many chemical environmental processes. The low-cost production DESs from natural sources their tunable properties, such neat null toxicity biodegradability, make these suitable...

Monoethanolamine (MEA) dominates power plant carbon dioxide (CO2) scrubbing processes, though with major disadvantages such as a 8–35% energy penalty. Here we report that structurally comparable amidoximes are promising CO2 capture agents based on RIMP2 electronic structure calculations. This was experimentally verified by the synthesis and testing of representative for efficiencies at pressures high 180 bar. Acetamidoxime, which has highest percent amidoxime functionality showed capacity...

The interfacial properties of deep eutectic solvents based on choline cloride plus urea, glycerol, or malonic acid in contact with gas phases composed by pure CO2, SO2, and a model flue gas, along the liquid–vacuum interface, were studied using molecular dynamics simulations. works provide insights mechanisms gases capture at relevant interfaces atomistic level. structural rearrangements molecules ions composing solvent upon is together adsorption surface, diffusion rates across surface...

A study on the viscosity of eight pyridinium based ionic liquids is reported for wide pressure and temperature ranges. Measurements were performed using an electromagnetic moving piston viscometer. Experimental data fitted to a Tait-like equation demonstrating good correlations, which was used calculate pressure/viscosity temperature/viscosity coefficients. The effect involved anions cation liquid analyzed from molecular viewpoint hole theory, quantum chemistry calculations density...

The viscosity of four imidazolium-based ionic liquids is analyzed as a function pressure and temperature. Experimental measurements were carried out using an electromagnetic moving piston viscometer in the 303–353 K 0.1–70 MPa ranges on synthesized ultrapure samples, compared with available literature data. Molecular dynamics simulations used to analyze fluids' dynamic properties from nanoscopic viewpoint, special attention paid self-diffusion coefficients viscosity. Simulated are excellent...

Dynamic viscosity for twenty-seven ionic liquids involving ions with molecular structures selected to infer the effects of structure on fluids’ is reported in this work as a function temperature. The data are analyzed considering these structural features and fitted according Vogel–Fulcher–Tamman equation. Viscosity were systematically anion cation property. COSMO-RS method was used relationships between level considered families ions. A Quantitative-Structure–Property-Relationship model...

The thermodynamic and kinetic hydrates inhibition effects of addition synergents poly(ethylene oxide) (PEO) vinyl caprolactum (VCAP) with ionic liquids 1-methyl-1-propylpyrrolidinium chloride [PMPy][Cl] triflate [PMPy][triflate] were studied on a synthetic quaternary gas mixture (methane, C1 = 84.20%; ethane, C2 9.90%; n-hexane, C6+ 0.015%; CO2 2.46%; N2 2.19%). results show that the helps to improve their hydrate effectiveness simultaneously.

Abstract A potential of natural deep eutectic solvent (NADES) produced with the mixture choline chloride lactic acid, malic citric acid and fructose is studied in this work. Experimental techniques are used to collect thermophysical property data including water content, thermal strength, density gas solubility CO 2 N at pressures up 50 bars. Detailed rheological measurements various models have been describe dynamic flow behavior. Moreover, a functional theory (DFT) classical molecular...

Ammonium based ionic liquids were studied for their methane hydrate inhibition ability.