Highly active P-doped sulfided NiMo/alumina HDS catalysts from Mo-blue by using saccharose as reducing agents precursor

Escobar, José; Barrera, María C.; Gutierrez, Arnaud; Cortés-Jácome, M.A.; Ángeles–Chávez, C.; Toledo, J. A.; Solís-Casados, Dora Alicia

doi:10.1016/j.apcatb.2018.06.034

Cited by 44 publications

(25 citation statements)

References 90 publications

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“…Nevertheless, the lower activity displayed by this combination in comparison with NiW, NiMo, and CoMo has discouraged the study of this system. Saccharose (SA) was also used as an organic additive in simultaneous impregnation of NiMoP/Al 2 O 3 preparation [83]. Authors observed a significant improvement in the dispersion of metallic species, increases in the sulfurability of Ni oxide species and the catalytic activity at low SA content inclusions.…”

Section: Organic Additivesmentioning

confidence: 99%

Recent Insights in Transition Metal Sulfide Hydrodesulfurization Catalysts for the Production of Ultra Low Sulfur Diesel: A Short Review

et al. 2019

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The literature from the past few years dealing with hydrodesulfurization catalysts to deeply remove the sulfur-containing compounds in fuels is reviewed in this communication. We focus on the typical transition metal sulfides (TMS) Ni/Co-promoted Mo, W-based bi- and tri-metallic catalysts for selective removal of sulfur from typical refractory compounds. This review is separated into three very specific topics of the catalysts to produce ultra-low sulfur diesel. The first issue is the supported catalysts; the second, the self-supported or unsupported catalysts and finally, a brief discussion about the theoretical studies. We also inspect some details about the effect of support, the use of organic and inorganic additives and aspects related to the preparation of unsupported catalysts. We discuss some hot topics and details of the unsupported catalyst preparation that could influence the sulfur removal capacity of specific systems. Parameters such as surface acidity, dispersion, morphological changes of the active phases, and the promotion effect are the common factors discussed in the vast majority of present-day research. We conclude from this review that hydrodesulfurization performance of TMS catalysts supported or unsupported may be improved by using new methodologies, both experimental and theoretical, to fulfill the societal needs of ultra-low sulfur fuels, which more stringent future regulations will require.

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Section: Organic Additivesmentioning

confidence: 99%

Recent Insights in Transition Metal Sulfide Hydrodesulfurization Catalysts for the Production of Ultra Low Sulfur Diesel: A Short Review

et al. 2019

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“…Although there are numerous works focused on the evaluation of sulfidation extent by XPS [4,[6][7][8][9][10][11][12][13], there is discrepancy between the methods used for analysis as is showed in the Table 1.…”

Section: Introductionmentioning

confidence: 99%

Quantification of the sulfidation extent of Mo in CoMo HDS catalyst through XPS

Bravo-Sánchez

Romero-Galarza

Ramı́rez

et al. 2019

Applied Surface Science

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“…Over the years, it has been studied how to improve the activity of HT catalysts, by incorporating different additives [14][15][16][17][18][19][20][21]. Similarly, in the case of adsorbent systems, different additives have been studied to improve adsorption capacity [6,22,23].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent

et al. 2020

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The simultaneous adsorption of quinoline and 4,6-dimethyldibenzothiophene over adsorbents, based on alumina modified with boron and nickel under ambient temperature and pressure, was studied. The adsorbents were characterized by BET specific surface area, a potentiometric method for the determination of acid strength, electrophoretic migration, and X-ray diffraction. The results showed that the adsorbent containing nickel had better adsorption capacity than the adsorbent modified with nickel and boron, which was attributed to its greater acidity and ability to generate π-complexation between the adsorbent and the molecules. In terms of selectivity, quinoline was more adsorbed than 4,6-dimethyldibenzothiophene in all systems, due to the basic nature of quinoline. The experimental data in all cases were adjusted by three kinetic models (Yoon–Nelson, Yan and Thomas), and the regression coefficients in all models were close to one. Finally, the values of the kinetic constant obtained by the Thomas model were used to relate the adsorption capacity results.

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Highly active P-doped sulfided NiMo/alumina HDS catalysts from Mo-blue by using saccharose as reducing agents precursor

Cited by 44 publications

References 90 publications

Recent Insights in Transition Metal Sulfide Hydrodesulfurization Catalysts for the Production of Ultra Low Sulfur Diesel: A Short Review

Recent Insights in Transition Metal Sulfide Hydrodesulfurization Catalysts for the Production of Ultra Low Sulfur Diesel: A Short Review

Quantification of the sulfidation extent of Mo in CoMo HDS catalyst through XPS

Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent

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