Oxidative Desulfurization of Model Oil over Au/Ti-MWW

Si, Xiaojuan; Cheng, Shifu; Lu, Yong; Gao, Guohua; He, Min

doi:10.1007/s10562-007-9380-6

Cited by 30 publications

(8 citation statements)

References 22 publications

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“…Consequently, efforts are being devoted to the development of processes using highly robust and recyclable catalysts that provide higher atom use and minimized pollution levels using greener ingredients. In recent years, the selective oxidation of S-containing compounds by H 2 O 2 has been carried out using a large number of redox solid catalysts such as Ti, 107,[198][199][200][201][202][203] V, [204][205][206] W, [207][208][209][210] Mo, 106,210 Co/Mn, 211 Ag, 212 Au, 213 Re. 214 5.4.2 Challenges for ODS.…”

Section: Organic Peracidsmentioning

confidence: 99%

Retracted article: Towards near zero-sulfur liquid fuels: a perspective review

Pawelec

Navarro

Campos‐Martín

et al. 2011

Catal. Sci. Technol.

259

119

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This perspective review discuses the fundamentals and factors influencing the removal of the least reactive sterically hindered S-containing compounds present in transportation fuels, and more specifically in the diesel fraction. The challenge for deep desulfurisation of diesel fuels is the difficulty of removing the refractory sulfur, particularly 4,6-dimethyldibenzothiophene, with conventional hydrodesulfurisation (HDS) processes. The first part presents the principles and problems associated with existing HDS processes, and the concepts, advantages and disadvantages of various new approaches together with the latest developments in deep HDS catalysts and the scientific basis for improvements in the performance of the new generation of catalysts. Special attention is paid in the second part to the progress made in alternative process concepts and technologies that are being developed for ultra low sulfur fuels.

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Section: Organic Peracidsmentioning

confidence: 99%

Retracted article: Towards near zero-sulfur liquid fuels: a perspective review

Pawelec

Navarro

Campos‐Martín

et al. 2011

Catal. Sci. Technol.

259

119

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“…Titanosilicates present excellent catalytic performance as heterogeneous catalysts in the catalytic oxidative desulfurization reaction due to their high specific surface areas, uniform pores, and unique thermal stability . Various titanosilicates, including TiO 2 -SiO 2 , Ti-SBA-2, Ti-SBA-15, Ti-SBA-16, Ti-MCM-41, Ti-MWW, Au/Ti-MWW, hierarchical TS-1, Ag/TS-1, hierarchical Ti-Beta, Ti-HMS, Ti-MSU, and Ti-modified hierarchical mordenite (Ti/MM) have been applied as catalysts in the ODS process. Wei et al investigated the desulfurization of model oil in the presence of Ti-containing mesoporous materials uniformly incorporated with methyl (C1-HMS-x) and without methyl (Ti-HMS-x) as catalysts and H 2 O 2 as an oxidant.…”

Section: Catalytic Oxidative–extractive Desulfurizationmentioning

confidence: 99%

“…Au loading can increase the activity of Ti-MWW for the desulfurization of model oil. DBT conversion was promoted from 60% to 84% using an H 2 O 2 oxidizing agent and a 0.05% Au-Ti-MWW catalyst . Three catalysts of TS-1, Ti-HMS (a hexagonal mesoporous molecular sieve), and Ti-MSU (long-worm-like pores) were used in the oxidative desulfurization of model oil in the presence of H 2 O 2 .…”

Section: Catalytic Oxidative–extractive Desulfurizationmentioning

confidence: 99%

“…Some ILs can act as both extractant and catalyst such as [Omim][HSO 4 ], [BPy][BF 4 ], and [EimC 4 SO 3 H]NTf 2 . Some ILs can be applied as only catalysts such as [Cn(mim) 2 ]Cl 2 /mFeCl 3 , [EMIM][NiCl 2 ], [EMIM][CoCl 2 ], [EMIM][MnCl 2 ], [PW 12 O 40 ], − …”

Section: Catalytic Oxidative–extractive Desulfurizationmentioning

confidence: 99%

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Key Factors Affecting the Development of Oxidative Desulfurization of Liquid Fuels: A Critical Review

et al. 2021

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Complete and effective sulfur removal from liquid fuels is essential to meet the sulfur standard requirements. The oxidative desulfurization (ODS) process has been extensively used for the desulfurization of liquid fuels. In the current study, a comprehensive survey was conducted on the most important factors of ODS, including the types of catalysts, oxidizing agents, extraction solvents, liquid fuels, and process operating conditions. Various types of catalysts, nanocatalysts, magnetic catalysts, photocatalysts, electrocatalysts, biocatalysts, and emulsion catalytic systems have been studied in the ODS process. According to the obtained results, desulfurization catalysts were categorized into 11 groups, including metal oxides, metal complexes, metal free, titanosilicates, ionic liquids, polyoxometalates, metal−organic frameworks, porous aromatic frameworks, covalent organic frameworks, enzymes, and Fenton and Fenton-like catalysts. The advantages and drawbacks of the ODS catalysts were reviewed. The results indicate that the development of experimental design, modeling, and simulation in the ODS process helps to identify the most important variables, facilitate future research, and achieve maximum sulfur removal. Using technologies assisted with ODS such as ultrasound, cold plasma, microwave radiation, hydrodynamic cavitation, photo/light, electrochemistry, magnetic field, and biotechnology can improve sulfur removal and reduce reaction time.

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“…This is due to the low cost of ODS and it can be carried out under very mild conditions. As a kind of ODS technique [8][9][10], the photocatalytic ODS is also an attracting method [2,11].…”

Section: Introductionmentioning

confidence: 99%