CoNiMo/Al2O3 catalysts for deep hydrotreatment of vacuum gasoil

Климов, О. В.; Надеина, К.А.; Дик, П. П.; Koryakina, G.I.; Pereyma, V. Yu.; Казаков, М. О.; Будуква, С. В.; Gerasimov, E. Yu.; Kochubey, D.I.; Носков, А. С.

doi:10.1016/j.cattod.2015.11.004

Cited by 42 publications

(14 citation statements)

References 44 publications

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“…Due to the importance of HDS and HDN processes and also economical-environmental issues associated with it, tremendous efforts have been devoted to the development of novel catalysts with high yields. NiMo and CoMo catalysts on various supports are among the most studied catalysts (Zdražil 2003;Yamamoto et al 2007;Vonortas and Papayannakos 2014;Bui et al 2015;Klimov et al 2016;Liu et al 2016;Zepeda et al 2016;Escobar et al 2017;Hajjar et al 2017a, b;Maximov et al 2017;Xu et al 2017;Zhou et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Comparison of performance of Ni–Mo/γ-alumina catalyst in HDS and HDN reactions of main distillate fractions

2019

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A bimetallic nickel-molybdenum catalyst supported on γ-alumina was synthesized by the two-step incipient wetness impregnation technique. The activity of the prepared Ni-Mo/γ-alumina catalyst was evaluated in a down flow fixed-bed microreactor. In this way, hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) reactions of the main distillate fractions of crude oil were assessed. XRD, SEM, TPR, ICP-OES, BET-BJH and nitrogen adsorption/desorption methods were used for characterizing the synthesized Ni-Mo/γ-alumina catalyst. The active metals with Ni/Mo mass ratio of 0.23 and total metal of 13.7 wt% were loaded on the support, similar to the commercial industrial catalyst. The performance tests were conducted at 3.0 MPa (for light naphtha and heavy naphtha) and at 4.5 MPa (for kerosene and gas oil). The results revealed that the total sulfur conversion of the light naphtha, heavy naphtha, kerosene and gas oil fractions was 98.3%, 95%, 91.7% and 90.1% (after 24 h), respectively.

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Section: Introductionmentioning

confidence: 99%

Comparison of performance of Ni–Mo/γ-alumina catalyst in HDS and HDN reactions of main distillate fractions

2019

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“…An ordered mesoporous NiMo-Al 2 O 3 catalyst was prepared by Liu et al (2016) for HDS of dibenzothiophene and they reported the Ni/Mo molar ratio of 1:1 for high HDS activity. Klimov et al (2016) prepared a CoNiMo/ Al 2 O 3 catalyst for deep HDT of vacuum gas oil and found that the catalyst with 1.8% Co, 1.2% Ni and 10% Mo has the highest activity in hydrotreating of vacuum gas oil. Mendoza-Nieto et al (2015) studied the effect of support on the catalytic performance of NiMoW in HDS of dibenzothiophenes; they used SBA-15 silica and conventional gamma-alumina as catalyst support and reported that the best dispersion of Mo and W species was obtained on SBA-15, which showed the highest HDT performance.…”

Section: Introductionmentioning

confidence: 99%

Ni-Mo Supported Nanoporous Graphene as a Novel Catalyst for HDS and HDN of Heavy Naphtha

Behnejad

Abdouss

Tavasoli

2019

Braz. J. Chem. Eng.

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Reducing sulfur and nitrogen compounds is essential in producing clean fuels for providing a green environment. In this regard, a novel nanocatalyst has been proposed for Hydrodesulfurization (HDS) and Hydrodenitrogenation (HDN) of heavy naphtha. To this end, Ni-Mo was loaded on nanoporous graphene (Ni-Mo/NG) through the incipient wetness impregnation method. The synthesized nanocatalyst was characterized by FE-SEM, ICP, BET, FTIR, XRD and TPR methods. The catalytic activity of the Ni-Mo/NG catalyst was evaluated at 290 o C and 30 bar. For the synthesized Ni-Mo/NG catalyst, conversions of total sulfur, total nitrogen and R-SH compounds (mercaptans) were obtained as 99.5, 99.4 and 99.3%, respectively, which shows considerable enhancement in comparison to the Ni-Mo/γ-Alumina industrial catalyst.

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“…Impregnated catalysts were dried at 120°C and calcined at 550°C. NiMo/Al 2 O 3 catalyst, which was used as a first layer in a stacked bed, was prepared using similar impregnation solution but without calcination after drying at 120°C [8]. Ni and Mo content in NiMo/Al 2 O 3 catalyst was 3.7 and 12.5 wt% respectively.…”

Section: Methodsmentioning

confidence: 99%

NiMo/USY-Alumina Catalysts with Different Zeolite Content for Vacuum Gas Oil Hydrocracking Over Stacked Beds

Дик

Доронин

Gerasimov

et al. 2017

Proceedings of the Scientific-Practical Conference "Research and Development - 2016"

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The stacked beds comprising hydrotreating catalyst as the top layer, hydrocracking catalyst based on amorphous silica-alumina as the interlayer and hydrocracking catalyst based on USY zeolite as the bottom layer were tested in hydrocracking of mixed feed containing straight-run VGO, heavy coker gas oil, aromatic extract and petrolatum. It is shown that stacked beds with developed catalysts can be successfully used both in the once-through hydrocracking to provide VGO conversion of 70-80% with middle distillates yields up to 50 wt% and in the first stage operation of two stages hydrocracker to provide 35-65% VGO

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CoNiMo/Al2O3 catalysts for deep hydrotreatment of vacuum gasoil

Cited by 42 publications

References 44 publications

Comparison of performance of Ni–Mo/γ-alumina catalyst in HDS and HDN reactions of main distillate fractions

Comparison of performance of Ni–Mo/γ-alumina catalyst in HDS and HDN reactions of main distillate fractions

Ni-Mo Supported Nanoporous Graphene as a Novel Catalyst for HDS and HDN of Heavy Naphtha

NiMo/USY-Alumina Catalysts with Different Zeolite Content for Vacuum Gas Oil Hydrocracking Over Stacked Beds

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