Hydrocracking of n-decane on a bifunctional sulfided NiW/silica–alumina catalyst: effect of the operating conditions

Roussel, Martial; Norsic, Sébastien; Lemberton, J.L.; Guisnet, M.; Cseri, T.; Benazzi, E.

doi:10.1016/j.apcata.2004.10.011

Cited by 45 publications

(27 citation statements)

References 10 publications

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“…Metal sites provide hydrogenation-dehydrogenation function and acidic sites provide cracking function through carbocationic mechanism. The most conventional catalysts used for the production of gasoline or diesel from crude oil are NiMo and NiW catalysts supported on alumina and silica-alumina [12][13][14][15][16]. Titania-silica can also be potentially available as a support for hydrotreating catalyst due to its favorable physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Production of middle distillate through hydrocracking of paraffin wax over NiMo/TiO2-SiO2 catalysts

Lee

Hwang

Lee

et al. 2010

Korean J. Chem. Eng.

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Titania-silica (TS(X), X=19, 26, 55, 70, and 79) supports with different titania content (X, wt%) were prepared by a precipitation method. NiMo/TS(X) catalysts prepared by an incipient wetness method were then applied to the production of middle distillate through hydrocracking of paraffin wax. Successful formation of NiMo/TS(X) (X=19, 26, 55, 70, and 79) catalysts was confirmed by ICP-AES and XRD measurements. NH 3 -TPD experiments were conducted to measure the acid property of NiMo/TS(X) (X=19, 26, 55, 70, and 79) catalysts. It was revealed that acidity of the catalyst played an important role in determining the catalytic performance in the hydrocracking of paraffin wax. Conversion of paraffin wax increased with increasing acidity of the catalyst, while yield for middle distillate showed a volcano-shaped curve with respect to acidity of the catalyst. Among the catalysts tested, NiMo/TS(26) retaining moderate acidity showed the highest yield for middle distillate.

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Section: Introductionmentioning

confidence: 99%

Production of middle distillate through hydrocracking of paraffin wax over NiMo/TiO2-SiO2 catalysts

Lee

Hwang

Lee

et al. 2010

Korean J. Chem. Eng.

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“…As expected from the literature comparing the properties of NiW catalysts supported on amorphous silica-alumina supports and on zeolites [3], the activity of the NiW/15% b-MCM-16 (46% crystallinity of the BEA structure) sample is much higher than that of NiW/100% ASA while its selectivity to isomerized products is lower. The reaction characteristics of NiW/15% b-MCM-10 are close to those of NiW/b-MCM-16 which was also expected from the rather close physico-chemical properties.…”

Section: Discussionmentioning

confidence: 56%

“…The selectivity versus conversion curves were, therefore, obtained from measurements performed at different temperatures. It is, however, possible to compare the selectivities of the catalysts, since the variation of the selectivity with temperature (for a given conversion) can be neglected within a reasonable temperature range (several tens of degrees) [4].…”

Section: Catalytic Testsmentioning

confidence: 99%

“…Due to the presence of sulfur and nitrogen impurities, mixed sulfides, such as NiMo or NiW are usually chosen as hydro-dehydrogenating phases. In particular, NiW catalysts will be chosen if the objective of the process is to obtain gasoils fractions with a high cetane number, which implies a severe reduction of the aromatics content, and consequently rather high hydrogenating properties for the catalyst [3,4]. Similarly, the choice of the solid providing the acidic function will depend on the objective of the process.…”

Section: Introductionmentioning

confidence: 99%

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Mesoporous materials from zeolite seeds as supports for nickel tungsten sulfide active phases

Zeng

Blanchard

Breysse

et al. 2005

Applied Catalysis A: General

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“…As metal sites, not only precious metals such as Pt [8][9][10][11][12][13][14] and Pd [15], but also transition metals such as Ni [16], Ni-Mo [17], Co-Mo [18], Ni-W [19] have been reported. As solid acid catalysts, zeolite [10,12,13,16], amorphous silica-alumina [17,19], and alumina [15,18] have been investigated. Among bifunctional catalysts for hydrocracking of n-alkanes, which are main components of the FT product, Pt-loaded β-type zeolite catalysts exhibited higher product yields under mild conditions [8,10].…”

Section: Introductionmentioning

confidence: 99%

Preparation for Pt-Loaded Zeolite Catalysts Using w/o Microemulsion and Their Hydrocracking Behaviors on Fischer-Tropsch Product

et al. 2015

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Pt-loaded β-type zeolite catalysts with constant Pt content (0.11 wt.%) and similar pore structure were prepared using a water-in-oil (w/o) microemulsion. The effect of Pt particle synthesis conditions using microemulsion (a type of Pt complex-forming agents and the molar ratio of complex-forming agent to Pt 4+ ) on loaded Pt particle size was investigated. The Pt particle size of the Pt catalyst using tetraethylammonium chloride (TEAC) as a complex-forming agent with the molar TEAC/Pt ratio 10 was the minimum value (3.8 nm), and was much smaller than that (6.7 nm) prepared by the impregnation method. The utilization of the complex-forming agent of which hydrophobic groups occupied a small volume and the appropriate complex-forming agent/Pt ratio were favorable for synthesis of small Pt particles. The effect of loaded Pt particle size on the hydrocracking of the Fischer-Tropsch (FT) product was investigated using the Pt-loaded zeolite catalysts at 250 °C with an initial H2 pressure of 0.5 MPa, and reaction time of 1 h. The Pt catalyst with a Pt particle size of 4.2 nm prepared using the microemulsion exhibited the maximum corresponding jet fuel yield (30.0%), which was higher than that of the impregnated catalyst.

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Hydrocracking of n-decane on a bifunctional sulfided NiW/silica–alumina catalyst: effect of the operating conditions

Cited by 45 publications

References 10 publications

Production of middle distillate through hydrocracking of paraffin wax over NiMo/TiO2-SiO2 catalysts

Production of middle distillate through hydrocracking of paraffin wax over NiMo/TiO2-SiO2 catalysts

Mesoporous materials from zeolite seeds as supports for nickel tungsten sulfide active phases

Preparation for Pt-Loaded Zeolite Catalysts Using w/o Microemulsion and Their Hydrocracking Behaviors on Fischer-Tropsch Product

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