A recyclable ionic liquid-oxomolybdenum(VI) catalytic system for the oxidative desulfurization of model and real diesel fuel
authors Juliao, D; Gomes, AC; Pillinger, M; Valenca, R; Ribeiro, JC; Goncalves, IS; Balula, SS
nationality International
journal DALTON TRANSACTIONS
keywords DEEP DESULFURIZATION; SOLVENT-EXTRACTION; ROOM-TEMPERATURE; LIQUID FUELS; COMPLEXES; EPOXIDATION; SULFUR; CYCLOOCTENE; ACID; PERFORMANCE
abstract The oxidative desulfurization of model and real diesel has been studied using the complex [MoO2Cl2(4,4'-di-tert-butyl-2,2'-bipyridine)] as (pre)catalyst, aq. H2O2 as oxidant, and an ionic liquid as extraction solvent. Under moderate conditions (50 degrees C) and short reaction times (<3 h), dibenzothiophene, 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene could be completely removed from the model diesel. The (pre)catalyst 1 was transformed in situ to the active catalyst [MoO(O-2)(2)(di-tBu-bipy)]. By sequentially performing extractive desulfurization and ECODS steps, 76% sulfur removal was achieved for a real diesel (S-initial = 2300 ppm). For both the model and real diesels, the catalyst/IL phase could be easily recycled and reused with no loss of desulfurization efficiency.
publisher ROYAL SOC CHEMISTRY
issn 1477-9226
year published 2016
volume 45
issue 38
beginning page 15242
ending page 15248
digital object identifier (doi) 10.1039/c6dt02065h
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000385198400043
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journal impact factor (jcr 2016): 4.029
5 year journal impact factor (jcr 2016): 3.851
category normalized journal impact factor percentile (jcr 2016): 85.870
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