Denitrogenation of middle distillates using adsorbent materials towards ULSD production: A review

Binary γ-Al2O3–α-Ga2O3 as supports of NiW catalysts for hydrocarbon sulfur removal

“…To meet the sulfur specifications for highway transportation vehicle fuels, deep sulfur removal from refractory molecules has to be done [1]. The complex fractions obtained from Mayan crude oil represent quite a challenge for Mexican refinery units because the concentration of sulfur in light cycle oil (LCO) may reach up to 31,000 parts per million (ppm S) [2] and nitrogen-containing compounds from 800 to 1000 ppm [3]. To attain deep hydrodesulfurization (HDS), sulfur must be removed from dibenzothiophene (DBT) and 4,6 dimethyl-DBT (4,6 DM-DBT).…”

Remarkable improvement in adsorptive denitrogenation of model fossil fuels with CuCl/activated carbon, prepared under ambient condition

“…In this process, SCCs are treated with hydrogen, and H 2 S gas is produced, which can be easily separated from the fuel feed. However, before removing the SCCs, NCCs should be removed first because NCCs in the fuel reduce the efficiency of the HDS process by competing to attack the catalytically active sites of the catalysts and hence block and deactivate the catalytic capability of the HDS process [6][7][8]. Currently, NCCs from fossil fuels are usually removed by a hydrodenitrogenation (HDN) technique.…”

Influence of Metal Oxides Impregnated on Silica—Alumina in the Removal of Sulphur and Nitrogen Compounds from a Hydrotreated Diesel Fuel Stream

“…The use of selective adsorbents such as activated carbon, zeolites and mesoporous silica to remove nitrogen and sulphur compounds from different fuels has been extensively studied in recent years (Arcibar-Orozco and Rangel-Mendez 2013;Kim et al 2006;Laredo et al 2013). However, adsorbents containing metal oxides were not largely studied.…”