Hydrocracking of Maya crude oil in a slurry-phase batch reactor. II. Effect of catalyst load

Ortiz-Moreno, Hugo; Ramı́rez, Jorge; Sánchez-Minero, Felipe; Cuevas, Rogelio; Ancheyta, Jorge

doi:10.1016/j.fuel.2014.03.050

Cited by 57 publications

(30 citation statements)

References 20 publications

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“…In fact, increasing molybdenum concentration prevents coke formation [22,23], but above 300 ppm, the increase of Mo loading does not provide much improvement in H 2 consumption and feed conversion. This limitation of conversion is probably due to H 2 transfer limitations in the batch reactor, as it was observed in the literature [24,25].…”

Section: Effect Of the Metal Nature On The Ar Conversionmentioning

confidence: 98%

Promotion effects with dispersed catalysts for residue slurry hydroconversion

Nguyen

Tayakout‐Fayolle

Lacroix

et al. 2015

Fuel

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Section: Effect Of the Metal Nature On The Ar Conversionmentioning

confidence: 98%

Promotion effects with dispersed catalysts for residue slurry hydroconversion

Nguyen

Tayakout‐Fayolle

Lacroix

et al. 2015

Fuel

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“…The bimetallic catalysts of Mo mixed Ni showed the higher level of effectiveness for coke suppression as well as the best control of gas production. [20] On the basis of more heavy oil VR conversion and more liquid yield along with less coke in slurry bed process, mixed MoNi catalyst were better than the single Mo and Ni catalyst in MRAR hydrocracking. These results also showed the synergy effective of NiMoS phase during the hydrocracking reaction [2,21].…”

Section: Catalytic Activity Of Nimos Phasementioning

confidence: 99%

Study of NiMoS mixed phase from catalyst precursors in residue slurry-bed hydrocracking

Du¹,

Deng²,

Li³

et al. 2017

AIP Conference Proceedings

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Abstract. The evolution and role of NiMoS structures from catalyst precursors on residue hydrocracking was investigated. NiMoS mixed phase played important roles in unsupported catalyst and heavy oil development, such as synergy effect and coke inhibiting. The oil-soluble molybdenum naphthenate and nickel naphthenate were chosen as catalyst precursors. The mixtures of the precursor were compared to those of other monometallic oil-soluble precursor in an effort to evaluate the evolution and role of NiMoS phase in the slurry bed hydrocracking of heavy oil. The presence of NiMoS phase were characterized by X-ray diffraction (XRD), TEM and XPS. The series of tests in the slurry-phase reactor was to confirm the synergy effect of NiMoS mixed phase.

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“…Comparative analysis of the results for TI samples showed that the main surface phase in Cat (TC)-TI was molybdenum disulfide MoS 2 , in Cat (S)-TI the surface contained MoS 2 along with oxides and sulfate of molybdenum (marked as Mo 5+ and Mo 6+ in Table 4). The paper [44] notes that the oxidized forms of molybdenum, such as MoO 3 and MoO 4 2− , are often present on the surface of samples with sulfides of molybdenum due to the oxidation of nanosized particles during sample preparation. Figure 10 shows x-ray diffraction spectra of the TI-samples.…”

Section: X-ray Photoelectron Spectrometrymentioning

confidence: 99%

“…The processes of hydro-treatment of heavy oil and petroleum residues in the presence of nanosized and ultra-dispersed catalysts without conventional solid carriers in the catalytic system have been actively studied in recent years due to the depletion of light and medium oil reserves and have shown high efficiency [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Ex-Situ Synthesis and Study of Nanosized Mo-Containing Catalyst for Petroleum Residue Hydro-Conversion

2019

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This study represents the results of ex-situ synthesis and research of the properties of concentrated suspensions with new catalysts for petroleum residue hydro-conversion. Suspensions were prepared and stabilized in a petroleum residue medium through reverse emulsions containing water-soluble Mo-precursor and S-containing agents (elemental sulfur, thiocarbamide) in the absence of a solid carrier. The resulting ex-situ catalyst dispersions had Mo content of 6-10 wt % and contained nanosized and submicron catalyst particles stabilized in a petroleum residue medium. The effects of S-containing agents on the properties of catalytic particles (sulfidation level, dispersity, structural and morphological features) were studied. The synthesis conditions for the optimal ex-situ catalyst providing the lowest coke yield (0.2 wt %) and the highest conversion (55.5 wt %) during petroleum residue hydro-conversion in a single pass mode have been determined.

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Hydrocracking of Maya crude oil in a slurry-phase batch reactor. II. Effect of catalyst load

Cited by 57 publications

References 20 publications

Promotion effects with dispersed catalysts for residue slurry hydroconversion

Promotion effects with dispersed catalysts for residue slurry hydroconversion

Study of NiMoS mixed phase from catalyst precursors in residue slurry-bed hydrocracking

Ex-Situ Synthesis and Study of Nanosized Mo-Containing Catalyst for Petroleum Residue Hydro-Conversion

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