Imidazolium-based SILLPs as organocatalysts in silane production: Synthesis, characterization and catalytic activity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity

“…The main principle of CCUS is to reduce the redundant CO 2 for subsurface storage in depleted reservoirs such as hydrocarbon reservoirs, 2 coal seams 3 and chalk formations, 4 in saline aquifers, 5,6 by sequestration via gas hydrates, 7−9 by conversion into the valued products obtained by the methanation reaction 10 or by a reaction with olefin oxides, 11 by utilization with supercritical CO 2 Brayton cycles, 12 and many others. 8,13,14 An economical attractiveness of these industrial life cycles lies in the possibility of a pipeline transfer of CO 2 from a combustion chamber to the sequestration sites, which allows utilizing huge amounts of the produced gas. 15 Nevertheless, a conventional technology of wet absorption by amines and their aqueous solutions is still widely used for capturing CO 2 .…”

“…In the past decades, the carbon capture, utilization, and storage (CCUS) technologies aimed at reducing the negative impact of CO 2 have been intensively developed. The main principle of CCUS is to reduce the redundant CO 2 for subsurface storage in depleted reservoirs such as hydrocarbon reservoirs, coal seams and chalk formations, in saline aquifers, , by sequestration via gas hydrates, − by conversion into the valued products obtained by the methanation reaction or by a reaction with olefin oxides, by utilization with supercritical CO 2 Brayton cycles, and many others. ,, An economical attractiveness of these industrial life cycles lies in the possibility of a pipeline transfer of CO 2 from a combustion chamber to the sequestration sites, which allows utilizing huge amounts of the produced gas …”

Deep Eutectic Solvents Composed of Urea and New Salts of a Choline Family for Efficient Ammonia Absorption

“…In addition, an NH 3 desorption was investigated by the evolved gas analysis (EGA–MS); the obtained thermal degradation profiles are displayed in Figure . The decomposition temperatures were estimated by a 3 sigma method, , which determines an onset temperature as a temperature at which a characteristic mass signal 3 times exceeds a background.…”

Bifunctional Silica-Supported Ionic Liquid Phase (SILP) Catalysts in Silane Production: Their Synthesis, Characterization and Catalytic Activity

“…For this, the synthesis of ILs based on imidazole, 1-methylimidazole, 2-methylimidazole and 4-methylimidazole was performed. Imidazolium-based SILPs, stabilized on divinylbenzene and chloromethylstyrene catalyst supports, were selected because of their high catalytic activity in the Union Carbide process [ 17 ]. DRIFTS was used to evaluate the synthesis effectiveness ( Figure 6 ).…”

“…It has been found [ 14 , 15 , 16 ] that functional groups containing nitrogen heteroatoms exhibit high catalytic activity in the trichlorosilane disproportionation reaction. It was previously shown [ 17 ] that imidazolium-based SILPs exhibit high catalytic activity in the Union Carbide process and, therefore, are of interest for further research, for example, in terms of replacing the organic porous support with a more chemically and thermally stable silica with a high specific surface area [ 18 ]. This is important because the determination of an optimal catalytic system is based not only on the properties of the IL functional group; other important factors here are the characteristics of the porous support: its specific surface area, average particle diameter, pore size distribution and surface morphology [ 19 , 20 , 21 , 22 ].…”