Detailed kinetic modelling of vacuum gas oil hydrocracking using bifunctional catalyst: A distribution approach

Browning, Barbara; Afanasiev, P.; Pitault, Isabelle; Couenne, Françoise; Tayakout‐Fayolle, Mélaz

doi:10.1016/j.cej.2015.08.126

Cited by 21 publications

(32 citation statements)

References 58 publications

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“…Similar to microkinetic modeling is the single event method, especially oriented towards complex networks involving reactions of hydrocarbons . However, alternative approaches are also still being developed to deal with large complex reaction mixtures …”

Section: Figurementioning

confidence: 99%

“…This is more critical when the reaction is involving three‐phase media requiring new dynamic tools for kinetic investigations able to deconvolute mas transfer, residence time distribution of separators and chemical kinetics. Biomass deconstruction and catalytic conversion requires deeper analysis in term of kinetics to find new descriptors and stop to limit kinetic analysis to pseudo‐first order approach. This could be inspired by studies done in petroleum fractions hydrotreating for example with continuous lumping approaches or also structural kinetic based on NMR quantitative data. A closer interaction with analytical sciences could then be very helpful.…”

Section: Figurementioning

confidence: 99%

“…Biomass deconstruction and catalytic conversion requires deeper analysis in term of kinetics to find new descriptors and stop to limit kinetic analysis to pseudo‐first order approach. This could be inspired by studies done in petroleum fractions hydrotreating for example with continuous lumping approaches or also structural kinetic based on NMR quantitative data. A closer interaction with analytical sciences could then be very helpful.…”

Section: Figurementioning

confidence: 99%

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The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects.

et al. 2017

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Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects.

et al. 2017

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“…In the literature, several microkinetic studies for hydrocracking using the single-event methodology are available [51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68]. Other approaches are possible and useful especially for complex feeds such as a Fischer-Tropsch product mixture or vacuum gas oil [69][70][71][72][73][74].…”

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling of Catalytic Olefin Cracking and Methanol-to-Olefins (MTO) over Zeolites: A Review

Hinrichsen

2018

Catalysts

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The increasing demand for lower olefins requires new production routes besides steam cracking and fluid catalytic cracking (FCC). Furthermore, less energy consumption, more flexibility in feed and a higher influence on the product distribution are necessary. In this context, catalytic olefin cracking and methanol-to-olefins (MTO) gain in importance. Here, the undesired higher olefins can be catalytically converted and, for methanol, the possibility of a green synthesis route exists. Kinetic modeling of these processes is a helpful tool in understanding the reactivity and finding optimum operating points; however, it is also challenging because reaction networks for hydrocarbon interconversion are rather complex. This review analyzes different deterministic kinetic models published in the literature since 2000. After a presentation of the underlying chemistry and thermodynamics, the models are compared in terms of catalysts, reaction setups and operating conditions. Furthermore, the modeling methodology is shown; both lumped and microkinetic approaches can be found. Despite ZSM-5 being the most widely used catalyst for these processes, other catalysts such as SAPO-34, SAPO-18 and ZSM-23 are also discussed here. Finally, some general as well as reaction-specific recommendations for future work on modeling of complex reaction networks are given.

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“…Various kinetic models have been proposed by several researchers (Froment, 2005;Botchway et al, 2004;Browning et al, 2016;Ancheyta et al, 2005;Elizalde et al, 2010;Puron et al, 2014) to study the product distribution in hydrocracking. A commonly used approach is to consider the mixture in terms of selected lumps, which can be specified in terms of structural characteristics, such as boiling point.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Kinetic Lumping Model Parameters to Improve Products Quality in the Hydrocracking Process

Naderi¹,

Shokri²,

Ahmadpanah³

2018

Braz. J. Chem. Eng.

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In this study a typical continuous lumping model with five parameters has been used for kinetic modeling of thermal and catalytic hydrocracking. Model parameters have been optimized according to experimental product distributions using a particle swarm optimization (PSO) algorithm. Experimental data from the hydrocracker setup have been employed to validate the proposed model. In this setup hydrogen and vacuum gasoil feed were introduced from the top of a vertical reactor and, after passing through a catalyst bed, the liquid and gas products were separated and analyzed. Temperature of the reactor was adjusted in the range of 440-470ºC for thermal hydrocracking, and 410-430ºC for catalytic hydrocracking. Liquid hourly space velocities (LHSV) were in the range of 0.5-1.5 feed flow rate per catalyst volume in both sets of experiments. Results of optimization showed that the parameters were only temperature dependent. The comparison between model results and experimental data indicates that the model is capable of predicting product yield with maximum errors of 0.986 and 0.041 for RMSE and AARE values, respectively.

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Detailed kinetic modelling of vacuum gas oil hydrocracking using bifunctional catalyst: A distribution approach

Cited by 21 publications

References 58 publications

The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects.

The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects.

Kinetic Modeling of Catalytic Olefin Cracking and Methanol-to-Olefins (MTO) over Zeolites: A Review

Optimization of Kinetic Lumping Model Parameters to Improve Products Quality in the Hydrocracking Process

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