Preparation, characterization and catalytic performance of HPW-TUD-1 catalyst on oxidative desulfurization

Ling, Tang; Luo, Guangqin; Zhu, Mingyuan; Kang, Lihua; Dai, Bin

doi:10.1016/j.jiec.2012.09.015

Cited by 66 publications

(19 citation statements)

References 26 publications

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“…From the DTA curves, it was found that PTA showed one obvious endothermic peak at around 225 °C, and another exothermic peak appeared at 610 °C which is due to the crystallization of tungstate species formed by the decomposition of PTA. These results were consistent with the reported literature 21 22 . From the analysis of TG-DTA, it can be concluded that PTA species in the catalyst remain its Keggin structure after calcination at 400 °C in the hydroprocessing, and the observed cracking activity was due to PTA.…”

Section: Resultssupporting

confidence: 94%

Hydroprocessing of Jatropha Oil for Production of Green Diesel over Non-sulfided Ni-PTA/Al2O3 Catalyst

Liu

Lei

et al. 2015

Sci Rep

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The non-sulfided Ni-PTA/Al2O3 catalyst was developed to produce green diesel from the hydroprocessing of Jatropha oil. The Ni-PTA/Al2O3 catalyst was prepared by one-pot synthesis of Ni/Al2O3 with the co-precipitation method and then impregnanting Ni/Al2O3 with PTA solution. The catalysts were characterized with BET, SEM-EDX, TEM, XRD, XPS, TGA and NH3-TPD. The Ni and W species of the Ni-PTA/Al2O3 catalyst were much more homogeneously distributed on the surface than that of commercial Al2O3. Catalytic performance in the hydroprocessing of Jatropha oil was evaluated by GC. The maximum conversion of Jatropha oil (98.5 wt%) and selectivity of the C15-C18 alkanes fraction (84.5 wt %) occurred at 360 °C, 3.0 MPa, 0.8 h−1. The non-sulfided Ni-PTA/Al2O3 catalyst is more environmentally friendly than the conventional sulfided hydroprocessing catalyst, and it exhibited the highest catalytic activity than the Ni-PTA catalyst supported with commercial Al2O3 grain and Al2O3 powder.

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Section: Resultssupporting

confidence: 94%

Hydroprocessing of Jatropha Oil for Production of Green Diesel over Non-sulfided Ni-PTA/Al2O3 Catalyst

Liu

Lei

et al. 2015

Sci Rep

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“…One promising ultradeep desulfurization method is oxidative desulfurization (ODS). In this method, heterocyclic sulfur compounds and their alkyl derivatives are oxidized to corresponding sulfone compounds, which can be easily removed via extraction or adsorption . Heteropolyacids (HPAs), especially those with a Keggin structure, have been applied to the catalytic oxidation of fossil fuels owing to their high acidic strength and thermal stability .…”

Section: Introductionmentioning

confidence: 99%

Heteropolyacid Supported on Nitrogen-doped Onion-Like Carbon as Catalyst for Oxidative Desulfurization

et al. 2017

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In order to improve the dispersion and reduce the loading content of phosphotungstic acid (H 3 PW 12 O 40 , HPW) on a support, the HPW was immobilized on the surface of nitrogendoped onion-like carbon (NOLC) with the assistance of ultrasonication. The obtained HPW/NOLC catalysts with an HPW loading of 5 %-15 % were characterized using various techniques. The results show that the HPW active component was well-dispersed on the NOLC surface. Under the optimum reaction conditions, a complete conversion of dibenzothiophene (DBT) could be achieved using the 10 % HPW/NOLC catalyst. This excellent catalytic effect may be ascribed to the good dispersion of HPW on the NOLC surface. Moreover, it was inferred that the nitrogen/oxygen functional groups strengthened the connections between HPW and the NOLC support, which is beneficial for improving the dispersion of HPW on the NOLC surface.

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“…Many researchers tried to solve this problem by immobilizing HPW on the surface of a solid support, such as SiO 2 , 7 TUD-1. 8 and SBA-15. 9 With simple ltration, the solid catalyst can be reused for the cycles of the ODS process.…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization and catalytic performance of HPW/aEVM catalyst on oxidative desulfurization

et al. 2017

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Preparation, characterization and catalytic performance of HPW-TUD-1 catalyst on oxidative desulfurization

Cited by 66 publications

References 26 publications

Hydroprocessing of Jatropha Oil for Production of Green Diesel over Non-sulfided Ni-PTA/Al2O3 Catalyst

Hydroprocessing of Jatropha Oil for Production of Green Diesel over Non-sulfided Ni-PTA/Al2O3 Catalyst

Heteropolyacid Supported on Nitrogen-doped Onion-Like Carbon as Catalyst for Oxidative Desulfurization

Preparation, characterization and catalytic performance of HPW/aEVM catalyst on oxidative desulfurization

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