Naslov
Deep eutectic solvents based on betaine and propylene glycol as potential denitrification agents: a liquid-liquid equilibrium study

Autori
Rogošić, Marko ; Krišto, Anđela ; Zagajski Kučan, Kristina

Izvornik
Brazilian journal of chemical engineering (0104-6632) 36 (2019), 4; 1703-1716

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
deep eutectic solvents ; liquid-liquid equilibrium ; fuel purification ; NRTL ; UNIQUAC

Sažetak
Two deep eutectic solvents (DES) based on betaine (B) and propylene glycol (PG) in molar ratios of 1:4 and 1:5 were prepared and their physico- chemical properties were determined. Liquid-liquid equilibria at 298.15 K and atmospheric pressure were determined for 13 quasi-three-component systems with a hydrocarbon (n-hexane, n-heptane, i-octane or toluene), solute (pyridine or thiophene) and DES (B-PG 1:4 or B-PG 1:5). Experimental phase diagrams and calculated distribution ratios showed that DESs are more suitable for denitrification than for desulfurization. The equilibria in the investigated systems were described by the NRTL and UNIQUAC models, and good agreement with experiments was obtained.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA