Desulfurization from thiophene by SO42−/ZrO2 catalytic oxidation at room temperature and atmospheric pressure

Wang, Bo; Zhu, Jianpeng; Ma, Hongwen

doi:10.1016/j.jhazmat.2008.08.003

Cited by 75 publications

(21 citation statements)

References 31 publications

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“…Recently, Wang et al [115] reported on the usage of SO 2 -4 =ZrO 2 catalyst in oxidative desulfurization (ODS) of thiophene assisted by air or ozone. Compared with the traditional ODS method, it will cut a lot of cost because the reaction could occur at room temperature and atmosphere, and the products (mostly hydrocarbons) could be directly combusted without any pollution.…”

Section: So 2 -mentioning

confidence: 99%

Review of SO 2− 4 /M x O y solid superacid catalysts

Liao

2009

Front. Chem. Eng. China

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Some metal oxides modified with sulfate ions form highly acidic or superacidic catalysts. SO 2 -4 =M x O y solid superacid catalysts, play a vital role in more and more fields such as organic synthesis, fine chemicals, pharmaceuticals, and means for strengthening environmental safeguards. This review highlights the recent development of solid superacid catalysts based on SO 2 -4 =M x O y , including synthesis method, characterization of acid sites and acid strength, and applications.

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Section: So 2 -mentioning

confidence: 99%

Review of SO 2− 4 /M x O y solid superacid catalysts

Liao

2009

Front. Chem. Eng. China

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“…ZrO 2 is not only BrÖ nsted acid, but also Lewis acid, which could coordinate with S element of benzothiophene [18]. The surface of ZrO 2 /SO 4 2-also has both the acidity of BrÖ nsted acid [19] and Lewis acid [20], so ZrO 2 /SO 4 2-could adsorb benzothiophene. But, due to the influence of Lewis acid site adsorbing water, the rates of desulfurization of ZrO 2 /SO 4 2-, ZrO 2 and ZrOCl 2 Á8H 2 O are weaker than PSO.…”

Section: Desulfurization Rate Of Different Materialsmentioning

confidence: 99%

Adsorption desulfurization study with ionic liquid compound ZrO2/PSMIMHSO4

Gao

Zhang

et al. 2016

Appl Petrochem Res

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Two ionic liquids 1-methyl-imidazolium-3-propylsulfonate (PSMIM) and 1-methyl-imidazolium-3-propylsulfonate hydrosulfate (PSMIMHSO 4 ) were synthesized. Their ZrO 2 , ZrOCl 2 and ZrO 2 /SO 4 2-derivatives were prepared under different condition and their desulfurization performances were studied. Then compared with traditional materials and their original materials under the same condition, the result showed that PSMIMHSO 4 compounded with ZrO 2 at mass ratio of 1:1 exhibited the superior desulfurization activity at 433 K for 25 min with the material/oil (m/v) of 1:10, and its desulfurization rate reached 97.4 %.

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“…According to the Directive of the European Union, the total sulfur content in gasoline or diesel fuels in Europe should not exceed 10 ppm aer 2010. 3 So, considerable attention has been given to the deep desulfurization of fuels to eliminate their hazardous inuence on the environment. 4 Hydrodesulfurization (HDS) is a conventional 'gold' method widely adopted for the removal of sulfur contents in petroleum reneries.…”

Section: Introductionmentioning

confidence: 99%

Extraction process of sulfur compounds from fuels with protic ionic liquids

et al. 2015

RSC Adv.

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Sulfur compounds in fuels are hazardous to the environment and present a great challenge. In this study, a series of protic ionic liquids (PILs) was designed, such as N,N-dimethyl-N-cyanoethyl ammonium butyratecyanoethyl ammonium acetate ([DMAPN] + [Ac] À ), N,N-dimethyl-N-cyanoethyl ammonium formate ([DMAPN] + [Fo] À ), N,N-dimethyl-N-(2-(2-hydroxyethoxy)) ammonium propionate ([DMEE] + [Pr] À ), N,Ndimethyl-N-hydroxyethyl ammonium propionate ([DMEA] + [Pr] À ), N,N-dimethyl-N-hydroxyethyl ammonium acetate ([DMEA] + [Ac] À ), N,N-dimethyl-N-hydroxyethyl ammonium formate ([DMEA] + [Fo] À ), N,N-dimethyl-N-butyl ammonium acetate ([DMBA] + [Ac] À ), N-methyl-N-hydroxyethyl ammonium propionate ([MEA] + [Pr] À ), and N-methyl-N-hydroxyethyl ammonium acetate ([MEA] + [Ac] À ), and their extraction desulfurization capability was evaluated. Through selection, two PILs were chosen to optimize the desulfurization process. The results showed that benzothiophene (BT) and thiophene (T) can be removed using PILs effectively. Both cations and anions have an influence on the extraction efficiencies.However, cations have a greater influence on the desulfurization process. Under optimal conditions, the extraction efficiency can be higher than 80% for one cycle. After 6-8 cycles, the removal efficiency could reach up to 99.5%. It is worth noting that the PILs could be recycled via simple vacuum distillation.After 4 times of recycling, the desulfurization efficiency changed slightly. Finally, a mechanistic study shows that hydrogen bonding interactions between the sulfur atom and active hydrogen of the PILs account for the high desulfurization efficiency. This green process would provide a new route for the extraction desulfurization of fuels.

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Desulfurization from thiophene by SO42−/ZrO2 catalytic oxidation at room temperature and atmospheric pressure

Cited by 75 publications

References 31 publications

Review of SO 2− 4 /M x O y solid superacid catalysts

Review of SO 2− 4 /M x O y solid superacid catalysts

Adsorption desulfurization study with ionic liquid compound ZrO2/PSMIMHSO4

Extraction process of sulfur compounds from fuels with protic ionic liquids

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