Kinetic modeling of the hydrocracking of polystyrene blended with vacuum gasoil

Trueba, David; Palos, Roberto; Bilbao, Javier; Arandes, José M.; Gutiérrez, Alazne

doi:10.1016/j.cej.2022.138709

Cited by 10 publications

(2 citation statements)

References 57 publications

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“…To evaluate the strong agreement between the calculated molar fractions of the components in the outlet stream of the reactor and the corresponding experimental data, parity plots are presented in Figure S4 (Section S6). The quality of the fit between the calculated and experimental results falls within the typical ranges found in the literature for kinetic models of other catalytic processes with complex reaction schemes that consider catalyst deactivation. ,− …”

Section: Resultssupporting

confidence: 75%

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Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Portillo,

Parra,

Aguayo

et al. 2024

ACS Sustainable Chem. Eng.

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An original kinetic model is proposed for the direct production of light olefins by hydrogenation of CO 2 /CO (CO x ) mixtures over an In 2 O 3 −ZrO 2 /SAPO-34 tandem catalyst, quantifying deactivation by coke. The reaction network comprises 12 individual reactions, and deactivation is quantified with expressions dependent on the concentration of methanol (as coke precursor) and H 2 O and H 2 (as agents attenuating coke formation). The experimental results were obtained in a fixed-bed reactor under the following conditions: In 2 O 3 −ZrO 2 /SAPO-34 mass ratio, 0/1−1/0; 350−425 °C; 20−50 bar; H 2 /CO x ratio, 1−3; CO 2 /CO x ratio, 0−1; space time, 0−10 g In2O3−ZrO2 h mol C −1 , 0−20 g SAPO-34 h mol C −1; time, up to 500 h; H 2 O and CH 3 OH in the feed, up to 5% vol. The utility of the model for further scale-up studies is demonstrated by its application in optimizing the process variables (temperature, pressure, and CO 2 /CO x ratio). The model predicts an olefin yield higher than 7% (selectivity above 60%), a CO x conversion of 12% and a CO 2 conversion of 16% at 415 °C and 50 bar, for a CO 2 /CO x = 0.5 in the feed. Additionally, an analysis of the effect of In 2 O 3 −ZrO 2 and SAPO-34 loading in the configuration of the tandem catalyst is conducted, yielding 17% olefins and complete conversion of CO 2 under full water removal conditions.

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Section: Resultssupporting

confidence: 75%

“…The quality of the fit between the calculated and experimental results falls within the typical ranges found in the literature for kinetic models of other catalytic processes with complex reaction schemes that consider catalyst deactivation. 36 , 47 − 49 …”

Section: Resultsmentioning

confidence: 99%

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Portillo,

Parra,

Aguayo

et al. 2024

ACS Sustainable Chem. Eng.

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Hydrocracking of Crude Oil Recovered from Ixachi Onshore Field: Kinetic Modeling by Lumping Approach

Soto-Azuara,

Sánchez-Minero,

Elizalde

2024

Arab J Sci Eng

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Influence of oxidative conditions on the deactivation of an equilibrium FCC catalyst in the fast pyrolysis of HDPE in a conical spouted bed reactor

Orozco

Artetxe

Álvarez

et al. 2023

Chemical Engineering Journal

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Kinetic modeling of the hydrocracking of polystyrene blended with vacuum gasoil

Cited by 10 publications

References 57 publications

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Hydrocracking of Crude Oil Recovered from Ixachi Onshore Field: Kinetic Modeling by Lumping Approach

Influence of oxidative conditions on the deactivation of an equilibrium FCC catalyst in the fast pyrolysis of HDPE in a conical spouted bed reactor

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Kinetic modeling of the hydrocracking of polystyrene blended with vacuum gasoil

Cited by 10 publications

References 57 publications

Kinetic Model for the Direct Conversion of CO2/CO into Light Olefins over an In2O3–ZrO2/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO2/CO into Light Olefins over an In2O3–ZrO2/SAPO-34 Tandem Catalyst

Hydrocracking of Crude Oil Recovered from Ixachi Onshore Field: Kinetic Modeling by Lumping Approach

Influence of oxidative conditions on the deactivation of an equilibrium FCC catalyst in the fast pyrolysis of HDPE in a conical spouted bed reactor

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Product

Resources

About

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst