Ionic liquids assisted desulfurization and denitrogenation of fuels

Abstract

In this article the regulations and policy about S and Ncontaining compounds in fuels, the general information about methods of desulfurization (DS) and denitrogenation (DN) and ionic liquids (ILs) assisted DS and DN are considered. We presented the most effective and novel methods of sulfur and nitrogen compounds removal using ILs from model and real fuels.

Perspectives on strategies for improving ultra-deep desulfurization of liquid fuels through hydrotreatment: Catalyst improvement and feedstock pre-treatment

“…The primary concern of having sulfur-containing compounds in fuel oil is that upon combustion they produce sulfur oxides (especially sulfur dioxide) that have devastating effects on the environment, biodiversity and human health (Schlesinger and McQueen, 2010;Hansmeier et al, 2011;Thurston, 2017). Diesel engines operate at higher temperatures and pressures producing more sulfur oxide emissions than gasoline engines (Zolotareva et al, 2019). The gases aggravate the contribution of motorized transport to global warming as they poison catalysts required in vehicle emission control systems to minimize the escape of carbon monoxide (Hansmeier et al, 2011).…”

“…Euoropean Union sulfur limits are set under Euro VI at 10 ppm (ICCT, 2020). Brazil has standards equivalent to the Euro V but additionally banning the sale of diesel cars in the country while promoting ethanol and biofuel blending (Zolotareva et al, 2019;ICCT, 2022). From 2013, major metropolitan areas and selected stations around the country were able to supply 10 ppm diesel to trucks (ICCT, 2022).…”

“…From 2013, major metropolitan areas and selected stations around the country were able to supply 10 ppm diesel to trucks (ICCT, 2022). China's vehicle emissions standards are also equivalent to the Euro V, being China V for light-duty vehicles and China V for heavy-duty vehicles (Zolotareva et al, 2019).…”

Mechanistic Study on the Removal of NO2 from Flue Gas Using Novel Ethylene Glycol-tetrabutylammonium Bromide Deep Eutectic Solvents

“…However, these technologies require a sizable initial investment, high operating costs, and generate secondary pollution, which restrict their commercial utilization. 6 , 7 Therefore, developing environmentally friendly, high-performing, and low-cost NO x sorbents for simple NO x removal systems is of paramount importance.…”

“…Current industrial technologies for NO x reduction include selective catalytic reduction and selective noncatalytic reduction (SCR and SNCR, respectively). However, these technologies require a sizable initial investment, high operating costs, and generate secondary pollution, which restrict their commercial utilization. , Therefore, developing environmentally friendly, high-performing, and low-cost NO x sorbents for simple NO x removal systems is of paramount importance.…”