Oxidative desulfurization (ODS) of organosulfur compounds catalyzed by peroxo-metallate complexes of WOx–ZrO2: Thermochemical, structural, and reactivity indexes analyses

Microporous titania–silica nanocomposite catalyst-adsorbent for ultra-deep oxidative desulfurization

“…No sign of DBT-sulfoxide, DBTO, was seen in the FTIR spectra after the reaction. This result suggests that DBT-sulfoxide formation or its elimination from the active site surface [33] is the rate-determining step.…”

“…Chica for a real diesel fuel desulfurization showed an approximately 99% decrease in the initial amount of sulfur [32]. Torres-García et al conducted both experimental and theoretical studies on the ODS of different thiophenic compounds using WO x -ZrO 2 catalysts and found that the surface density of WO x species strongly affected the catalyst activity [33].…”

Nature of active sites in Ni2P hydrotreating catalysts as probed by iron substitution

“…The US Environmental Protection Agency recently issued a final rule requiring refineries to cut sulfur levels in gasoline from 30 ppm to 10 ppm by Jan. 2017 [3]. Current topics of study include investigation of the nitrogen tolerance [4], trimetallic compositions [5], the addition of additives like P and B [6] and Ga [7], the use of egg-shell or hierarchical supports [8], the use of composite supports [9,10], the use of zeolites [11], the use of mesoporous supports [12,13], oxidative desulfurization [14], and noble metals [15]. Metal phosphides have recently received extensive attention as a new type of hydrodesulfurization (HDS) catalyst because of their high activity and stability in the HDS and hydrodenitrogenation (HDN) of model and real feeds [8,[16][17][18][19][20][21][22].…”

Catalytic Desulfurization of Benzothiophene Using Keggin Type Polyoxometalates as catalyst

“…However, catalyst still plays a key role for desulfurization of fuel oil. Catalyst based on polyoxometalate compounds has been investigated deeply for fuel oil desulfurization due to its beneficiary's characteristics such as acidity, oxygen transfer ability, various structures, and redox properties [9][10][11][12][13][14]. Keggin type polyoxometalate [XM 12 O 40 ]…”