Dynamic modeling and simulation of three-phase reactors for hydrocracking of vegetable oils

Mederos-Nieto, Fabián S.; Elizalde, Ignacio; Trejo-Zárraga, Fernando; Hernández‐Altamirano, Raúl; Alonso, Fernando

doi:10.1007/s11144-020-01896-4

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…The greatest formation of CO takes place in the part of the central where there is more contact between phases. It is important to compare the results of the microscale reactor, using the experimental data of the TBR reactor against the Matlab simulation by Mederos et al (2020) and against this CFD simulation work with Fluent. Figure 10 shows the comparison of the simulation in Fluent, considering the reaction mechanism shown above, the simulation lasted 1600 seconds, considering conditions of temperature of 380 °C and pressure of 8 MPa.…”

Section: Resultsmentioning

confidence: 99%

“…The experimental reactor with which the CFD simulation was compared is a dynamic drained bed reactor (TBR) where it carries out the hydrotreatment process, using a commercial CoMo/γ-Al 2 O3 catalyst, Jatropha Curcas vegetable oil was used as raw material. L, shown in Figure 1, Mederos Nieto et al (2020). The reactor that was simulated is a microscale countercurrent reactor with a diameter of 1.3 cm and a height of 30 cm.…”

Section: Mathematical Formulation and Problem Statementmentioning

confidence: 99%

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CFD Modeling and Simulation of a Countercurrent Reactor of Hidrotreatment Process With Jatropha Curcas L. Vegetable Oil

Vizguerra Morales,

Mederos Nieto

2024

Int. J. Eng. Sci. Tech

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In this work, a microscale countercurrent reactor was analyzed and simulated in CFD, and the results were compared with a drained bed reactor (TBR) which is held in the CMP+L research center. The importance of this study is to find the mathematical model of the countercurrent reactor to produce clean fuels from Jatropha Curcas L. vegetable oil and in the future scale it to an industrial level. For the hydrotreatment process, a commercial CoMo/γ-Al2O3 catalyst was used, and Jatropha Curcas L vegetable oil was used as raw material. The operating conditions that were considered for the CFD simulation were temperature 380 °C, pressure 8 MPag, LHSV 8.0 h−1. The reactor model considers a reaction mechanism 13 hydrocracking reactions of triglycerides towards renewable fuels. The CFD simulation was carried out in Fluent 18.2 in a transient state and in 3 dimensions, considering the standard k-ϵ turbulence model, the Eulerian multiphase model and the porous medium model, obtaining results very similar to the experimental ones, with a conversion of triglycerides of 0.996% and the retention time of the liquid temperature was 169 seconds and in the simulation is 200 seconds, the molar concentration profiles of the products were obtained whereby this model can be applied to the industrial scale.

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Section: Resultsmentioning

confidence: 99%

Section: Mathematical Formulation and Problem Statementmentioning

confidence: 99%

CFD Modeling and Simulation of a Countercurrent Reactor of Hidrotreatment Process With Jatropha Curcas L. Vegetable Oil

Vizguerra Morales,

Mederos Nieto

2024

Int. J. Eng. Sci. Tech

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“…The countercurrent dynamic trickled bed reactor (TBR) that was simulated in CFD, is shown in figure 2.The models, as shown in this work, can be used by the CFD tool to predict the operating behavior of the unit under different reaction conditions and designs to find the best scheme to control the effects of high temperature rise 29 . Global forward kinetics of HDC, including Jatropha oil oligomerization, where the components produced within the HDC reaction were classified: reactive (TG), light (nC5 -C8), medium (nC9-C14), heavy (nC15 -C18) and oligomerized (>nC18) 27 .…”

Section: Eulerian Modelmentioning

confidence: 99%

CFD Modeling and Simulation of a Hydrotreatment Reactor Countercurrent Using Jatropha Curcas L. Vegetable Oil

Morales

Nieto

2023

Preprint

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In this work, a drained bed reactor (TBR) was analyzed for the hydrotreatment process, using a commercial catalyst CoMo/\(\gamma\)-Al2O3, vegetable oil from Jatropha Curcas L. was used as raw material. The mode of operation of the reactor was considered in countercurrent. The operating conditions that were considered for the CFD simulation were temperature 320–380 ° C, pressure 8 MPag, LHSV 0.8–8.0 h− 1. The reactor model considers a single hydrocracking reaction of triglycerides to renewable fuels. The CFD simulation was carried out in Ansys Fluent 16.0 in transient state and in 3 dimensions, considering the turbulence model \(k- ϵ\) standard, Eulerian multiphase model for 3 phases and the porous medium model, obtaining results very similar to the experimental ones, a good approximation with the experimental results which can be applied to the industrial scale was shown.

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Simulation and optimization of a hydrotreating reactor using a new hybrid imperialistic competition algorithm-based adaptive neuro-fuzzy inference system (ICA-ANFIS)

2022

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Dynamic modeling and simulation of three-phase reactors for hydrocracking of vegetable oils

Cited by 4 publications

References 39 publications

CFD Modeling and Simulation of a Countercurrent Reactor of Hidrotreatment Process With Jatropha Curcas L. Vegetable Oil

CFD Modeling and Simulation of a Countercurrent Reactor of Hidrotreatment Process With Jatropha Curcas L. Vegetable Oil

CFD Modeling and Simulation of a Hydrotreatment Reactor Countercurrent Using Jatropha Curcas L. Vegetable Oil

Simulation and optimization of a hydrotreating reactor using a new hybrid imperialistic competition algorithm-based adaptive neuro-fuzzy inference system (ICA-ANFIS)

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