L-proline-based deep eutectic solvents (DESs) for deep catalytic oxidative desulfurization (ODS) of diesel

Formation and Extractive Desulfurization Mechanisms of Aromatic Acid Based Deep Eutectic Solvents: An Experimental and Theoretical Study

“…From the FTIR spectra of BA and [TEA]/[BA],i tc an be seen that the absorption of ÀOH is significantly strengthened and widened at ñ % 3400 cm À1 of [TEA]/[BA],w hichi ndicates the formation of ah ydrogen bond between TEA and BA. [18] The blueshift of C=Oo fB Af rom ñ = 1687 to 1703 cm À1 is because the morphologyo ft he dimers is destroyedb yt he hydrogen bond between TEA and BA.T he shift of all Ha toms of [TEA]/[BA] to lower fieldi ntensities, as shown in the 1 HNMR spectra, may be because of the formation of hydrogen bonds or other interactions between TEA and BA. [18] The blueshift of C=Oo fB Af rom ñ = 1687 to 1703 cm À1 is because the morphologyo ft he dimers is destroyedb yt he hydrogen bond between TEA and BA.T he shift of all Ha toms of [TEA]/[BA] to lower fieldi ntensities, as shown in the 1 HNMR spectra, may be because of the formation of hydrogen bonds or other interactions between TEA and BA.…”

“…The band at ñ = 933 cm À1 belongs to OH···O, which indicates that BA tends to exist in the morphology of dimers. [18] The blueshift of C=Oo fB Af rom ñ = 1687 to 1703 cm À1 is because the morphologyo ft he dimers is destroyedb yt he hydrogen bond between TEA and BA.T he shift of all Ha toms of [TEA]/[BA] to lower fieldi ntensities, as shown in the 1 HNMR spectra, may be because of the formation of hydrogen bonds or other interactions between TEA and BA. Therefore, more work should be carried out to study the formation mechanism of aromatica cid based DESs.…”

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo11Cu@MgCu2O4@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

“…Among these processes, the ODS has gained attention from the scientific community worldwide due to mild reaction conditions such as lower reaction temperature and atmospheric pressure, lower investment, operating costs, and simpler process . During the last few decades, the application of ODS method for removal of OSCs from liquid fuels has been confirmed to be very promising . Various types of catalysts for ODS have been reported in previous publications .…”

Removal of Dibenzothiophene from Diesels by Extraction and Catalytic Oxidation with Acetamide‐Based Deep Eutectic Solvents

“…Therefore, DESs have become suitable candidates for desulfurization processes. They were not only employed as extractants or reaction medium for desulfurization or photochemical desulfurization, but also as catalyst for extraction and catalytic oxidation desulfurization (ECODS) , .…”