An efficient amine-modified silica aerogel sorbent for CO2 capture enhancement: Facile synthesis, adsorption mechanism and kinetics

Amine Adsorbents Based on N-(2-Hydroxyethyl)ethylenediamine for Carbon Dioxide Capture from simulated biogas

“…The core issue of adsorption method lies in possessing efficient adsorbents. The development of solid amine adsorbents, achieved by immobilizing organic amines onto the porous surfaces by impregnation, post-synthesis grafting or direct co-condensation, is viewed as a promising approach for capturing and separating CO2 due to their high adsorption capacity and selectivity [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The impregnation method is the most commonly used technique for preparing solid amines due to its simplicity and the capability to achieve a high CO2 adsorption capacity.…”

“…Fig.1Schematic Diagram of the Self-Assembled Fixed Bed System.cutoff valves(1,3,5,7,11,12,14,16,18), mass flow meters(2,17), pressure gauges (4,9), the adsorption column (6), vacuum gauge (8), back pressure regulator(10), and vacuum pump(19). The gas cylinders include Ar (20) and a CH4/CO2 mixed gas cylinder.…”

Effects and mechanisms of anion and cation on the gelation of nanosilica sol by all-atom molecular dynamics simulation: promotion or inhibition?

“…Nanosilica sol (NSS) is often used as a raw material for chemical production, [1][2][3] biomedicine, [4][5][6][7] environmental pollution control, 8,9 farmland heavy metal prevention, 10,11 and other fields owing to its low price, easy preparation, and unique physical and chemical properties. However, the polycondensation of silicon hydroxyl groups cause the NSS to gel at normal temperature and pressure.…”