Low viscous Protic ionic liquids functionalized with multiple Lewis Base for highly efficient capture of H2S

Excess chemical potential of thiophene in [C4MIM] [BF4, Cl, Br, CH3COO] ionic liquids, determined by molecular simulations

“…However, the solvents used in these processes can be volatile and toxic. 9 Ionic liquids (ILs) are a promising class of solvents presenting specic physicochemical properties such as low vapor pressure, high thermal stability, as well as wide-ranging ability to interact with polar and non-polar compounds; [10][11][12] ILs are considered green solvents in various extraction processes, 11,13 including the extraction of sulfur compounds like H 2 S [14][15][16] and thiophene. 17 Ibrahim et al 18 presented a comprehensive review regarding the role of ILs in the desulfurization of fuels.…”

“…Zheng et al 14 evaluated the capability of low viscosity ILs such as: tetramethyl-1-3-diaminopropane acetate, pentamethyl-dipropylene-triamine acetate and tris(3-dimethyl-amino-propyl) amine acetate to extract the H 2 S. These authors found that the H 2 S solubility in aqueous-IL solutions are higher than in other common absorbents such as aqueous solutions of methyldiethanolamine. Additionally, ILs can be re-used in several absorption–desorption cycles.…”

Catalytic Conversion for Hydrogen Sulfide

“…The pH of desulfurizer is an important factor affecting the removal efficiency of H2S (Zheng et al, 2018). During the research, the pH of the desulfurizer was adjusted between and 9 with 1 M NaOH and 1 M HCl, and the H2S concentration was maintained at mg m -3 .…”

Desulfurization Performance of Rare Earth Mono-substituted Heteropoly Compounds

“…pH plays an important role in the H 2 S removal efficiency of the absorbent (Zheng et al, 2018). We studied this factor with the 2200 mg m -3 of H 2 S (Fig.…”