Hydrodesulfurization and hydrodemetallization of different origin vacuum residues: Characterization and reactivity

Ferreira, Cristiana; Tayakout‐Fayolle, Mélaz; Guibard, Isabelle; Lemos, F.; Toulhoat, H.; Ribeiro, F. Ramôa

doi:10.1016/j.fuel.2012.03.054

Cited by 31 publications

(28 citation statements)

References 19 publications

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“…The Ni complexes in the Kuwaiti ARs are higher molecular weight complexes than those of the V complexes, 29 which hinders access to the catalyst active sites. 30 Previous literature reports V atoms linked to an oxygen atom that is perpendicular to porphyrins. 31 These oxygen atoms form strong bonds with the catalyst surface; however, the types of oxygen links present are not observed in Ni porphyrins.…”

Section: Resultsmentioning

confidence: 99%

Predicted Effects of Heavy Feeds on the Deactivation of a Commercial Atmospheric Residue Desulfurization Catalyst System

2018

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The effect of three atmospheric residual oils on the deactivation of a commercial atmospheric residue desulfurization (ARDS) catalyst system was assessed using a commercial catalyst system consisting of five catalysts loaded inside a two-reactor pilot plant. The hydrodemetalation (HDM) and hydrodesulfurization (HDS) reactions of the three residues over the catalyst system were studied. A deactivation model considering metals and carbon deposition was used to fit the life test data. Experimental and simulated data were compared. The effect of the residual oils on each of the catalysts was evaluated, and the catalyst contribution was calculated highlighting the importance of predicting different catalyst activities during the design of a composite catalyst bed.

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Section: Resultsmentioning

confidence: 99%

Predicted Effects of Heavy Feeds on the Deactivation of a Commercial Atmospheric Residue Desulfurization Catalyst System

2018

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“…A second set of experiments was conducted with the association of HDM and HDS catalysts, both catalysts are present in a 50/50 volume ratio. Residue characterization and experiment details have been reported by Ferreira et al [1].…”

Section: Methodsmentioning

confidence: 98%

“…In the present work, based on the experimental works of Ferreira et al [1], we introduce a new heavy residue feed description and consequent kinetic network. The aim is that model parameters should be independent of vacuum residue origin whilst the model itself remains as simple as possible.…”

Section: Introductionmentioning

confidence: 99%

“…Several kinetic models have been developed, but mostly they are feed dependant and their predictions are not satisfying for residues of different origins. Based on a recent study comparing residue properties and the differentiating physical-chemical properties responsible for reactivity [1], the present work develops a 2 hydrotreatment kinetic model coupled with mass transfer in the catalyst which attempts to simulate the different residue performances. After estimation of kinetic parameters for a given residue, the model was validated for three other residues.…”

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confidence: 99%

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Hydrodesulfurization and hydrodemetallization of different origin vacuum residues: New modeling approach

Ferreira¹,

Tayakout‐Fayolle²,

Guibard³

et al. 2014

Fuel

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In order to be able to upgrade the heaviest part of the crude oil one needs to remove several impurities, such as sulfur or metals. Residue hydrotreatment in fixed beds, under high hydrogen pressure can achieve high removal performances, with an industrial catalysts optimized staging. Despite the recent improvements, petroleum residues remain very difficult to describe and characterize in detail. Several kinetic models have been developed, but mostly they are feed dependant and their predictions are not satisfying for residues of different origins. Based on a recent study comparing residue properties and the differentiating physical-chemical properties responsible for reactivity [1], the present work develops a 2 hydrotreatment kinetic model coupled with mass transfer in the catalyst which attempts to simulate the different residue performances. After estimation of kinetic parameters for a given residue, the model was validated for three other residues. This new model is able to take into account differences in residue characteristics and gives fairly good simulations of residues performances.

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“…Methods for the separation of mixtures based on the application of new principles have been developed [4,5], which makes it possible to quickly obtain quantitative data on the composition of petroleum fractions [6]. The most important chemical types and structural features of many heteroatoms have been characterized [7], as well as some patterns of individual classes of these compounds [8].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Vanadium and Sulfur Containing Compounds of Kazakhstan Petroleum Vacuum Residuum

Ongarbayev

Oteuli

Zhang

et al. 2021

Period. Polytech. Chem. Eng.

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In the paper, bulk property and chemical composition of Kazakhstan vacuum residuum were characterized. Sulfides and thiophenes were selectively isolated from the residuum and characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Molecular weights of the sulfur compounds were varied from 150 to 800 Da and S1 , S2 , O1S1 , O2S1 , N1S1 class species were assigned in the heavy oil derived methylsulfonium. Vanadyl porphyrins characterized by positive-ion electrospray ionization and FT-ICR MS, which showed that etioporphyrins (ETIO) (CnH2n-28N4V1O1 , corresponding to DBE = 17) and deoxophylloerythroetioporphyrins (DPEP) (CnH2n-30N4V1O1, corresponding to DBE = 18). It should be noted that the vanadyl porphyrins were most abundant.

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Hydrodesulfurization and hydrodemetallization of different origin vacuum residues: Characterization and reactivity

Cited by 31 publications

References 19 publications

Predicted Effects of Heavy Feeds on the Deactivation of a Commercial Atmospheric Residue Desulfurization Catalyst System

Predicted Effects of Heavy Feeds on the Deactivation of a Commercial Atmospheric Residue Desulfurization Catalyst System

Hydrodesulfurization and hydrodemetallization of different origin vacuum residues: New modeling approach

Characterization of Vanadium and Sulfur Containing Compounds of Kazakhstan Petroleum Vacuum Residuum

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