Desulfurization process conciliating heterogeneous oxidation and liquid extraction: Organic solvent or centrifugation/water?
authors Ribeiro, SO; Nogueira, LS; Gago, S; Almeida, PL; Corvo, MC; de Castro, B; Granadeiro, CM; Balula, SS
nationality International
journal APPLIED CATALYSIS A-GENERAL
author keywords Sulfur-free diesel; Sustainable desulfurization processes; Heterogeneous catalysis; Polyoxometalate; Water extraction solvent
keywords MESOPOROUS SILICA; DEEP DESULFURIZATION; SUBSTITUTED POLYOXOMETALATE; CATALYTIC PERFORMANCE; EFFICIENT CATALYSTS; MODEL DIESEL; GAS OIL; SBA-15; FUEL; TEMPERATURE
abstract The present work presents a strategic oxidative desulfurization system able to efficiently operate under sustainable conditions, i.e. using an eco-friendly oxidant and without the need of extractive organic solvents. The catalytic performance of Eu(PW11039)(2)@aptesSBA-15 was evaluated for the oxidative desulfurization of a multicomponent model diesel using a solvent-free or biphasic systems. The results reveal its remarkable desulfurization performance achieving complete desulfurization after just 2 h of reaction. Moreover, the composite has shown a high recycling ability without loss of catalytic activity for ten consecutive ODS cycles. Interestingly, under solvent-free conditions it was possible to maintain the desulfurization efficiency of the biphasic system while being able to avoid the use of harmful organic solvents. In this case, a successful extraction of oxidized sulfur compounds was found conciliating centrifugation and water as extraction solvent. Therefore, this work reports an important step towards the development of novel eco-sustainable desulfurization systems with high industrial interest.
publisher ELSEVIER SCIENCE BV
issn 0926-860X
year published 2017
volume 542
beginning page 359
ending page 367
digital object identifier (doi) 10.1016/j.apcata.2017.05.032
web of science category Chemistry, Physical; Environmental Sciences
subject category Chemistry; Environmental Sciences & Ecology
unique article identifier WOS:000405765200035
  ciceco authors
  impact metrics
times cited (wos core): 0
journal impact factor (jcr 2016): 4.339
5 year journal impact factor (jcr 2016): 4.354
category normalized journal impact factor percentile (jcr 2016): 82.007
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