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http://hdl.handle.net/10773/37026
Title: | Dichlorodioxomolybdenum(VI) complexes bearing oxygen-donor ligands as catalysts for oxidative desulfurization of simulated and real diesel |
Author: | Julião, Diana Gomes, Ana C. Cunha-Silva, Luís Pillinger, Martyn Lopes, André D. Valença, Rita Ribeiro, Jorge C. Gonçalves, Isabel S. Balula, Salete S. |
Keywords: | Oxidative desulfurization Dioxomolybdenum catalysts Hydrogen peroxide Ionic liquids Optimization Real diesel |
Issue Date: | Aug-2019 |
Publisher: | Elsevier |
Abstract: | The complexes [MoO2Cl2(DMB)2] (1) and [MoO2Cl2(DEO)] (2) (DMB = N,N-dimethylbenzamide, DEO = N,N′-diethyloxamide) have been evaluated as catalysts in extractive-catalytic oxidative desulfurization (ECOD) of a simulated diesel fuel. Using the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM]PF6) as extraction solvent and H2O2 as oxidant, ultra-deep desulfurization (S-content from 3000 ppm to <10 ppm) was possible within a reaction time of 1–3 h, and the systems Catalyst/[BMIM]PF6 could be recycled for five times without significant decrease in activity. The S-content of a real untreated diesel was lowered by 94.4% from 2300 ppm to 129 ppm after only 2 h of reaction using the ECOD process with 2 as catalyst. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/37026 |
DOI: | 10.1016/j.catcom.2019.05.011 |
ISSN: | 1566-7367 |
Appears in Collections: | CICECO - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Dichlorodioxomolybdenum.pdf | 749.99 kB | Adobe PDF | View/Open |
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