Intensified approach for desulfurization of simulated fuel containing thiophene based on ultrasonic flow cell and oxidizing agents.

Intensified approach for desulfurization of simulated fuel containing thiophene based on ultrasonic flow cell and oxidizing agents. Ultrason Sonochem. 2019 Mar;51:58-68 Authors: More NS, Gogate PR Abstract Intensified desulfurization of simulated crude fuel containing thiophene has been investigated using ultrasonic flow cell in combination with oxidizing agents such as peracetic acid, hydrogen peroxide (H2O2) and Fenton reagent at ambient conditions. The effect of thiophene loading, recirculation flow rate and the oxidant loading on the extent of desulfurization has been studied at 1 L capacity. Combination of ultrasound and hydrogen peroxide at optimized loading of 8% resulted in higher extent of desulfurization (38%) as compared to only ultrasound (17%). Higher degree of enhancement in extent of desulfurization (57% as the actual value) was observed for combination of ultrasound and peracetic acid at loading of 10%. Significant increase in extent of desulfurization was obtained for the combination of ultrasound and Fenton reagent (2 g/L FeSO4 + 10% H2O2) with actual extent being 87%. The conventional approaches of only hydrogen peroxide and only Fenton without ultrasound resulted in much lower extent of desulfurization as 22 and 40% respectively confirming the synergism for the combined process involving ultrasound. Maximum desulfurization extent as 96% was obtained for the approach of ultrasound combined with Fenton reage...
Source: Ultrasonics Sonochemistry - Category: Chemistry Authors: Tags: Ultrason Sonochem Source Type: research