Kinetic modeling for assessing the product distribution in toluene hydrocracking on a Pt/HZSM-5 catalyst

Pedro Castaño; José María Arandes; Bárbara Pawelec; Martín Olazar; Javier Bilbao

doi:10.1021/ie071154r

Kinetic modeling for assessing the product distribution in toluene hydrocracking on a Pt/HZSM-5 catalyst

Pedro Castaño, José María Arandes, Bárbara Pawelec, Martín Olazar, Javier Bilbao

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23 Scopus citations

Abstract

A kinetic model has been proposed to quantify the distribution of product lumps in the hydrocracking of toluene on a bifunctional catalyst prepared by physically mixing Pt/γ-Al2O3 with high-acidity HZSM-5 zeolite (Si/Ai = 15). The current model is based on one that was previously proposed for the hydrogenolytic cracking of methylcyclohexane, given that this is the limiting step because of the rapid hydrogenation of toluene. The experimental results used for calculating the kinetic parameters were obtained in an isothermal fixed-bed reactor under a wide range of operating conditions (250-450°C; WHSV = 2.85-100 h-1, τ = 1.0-3.5 gzeolite h gtoluene-1); pressure = 20-60 bar; molH2/moltoluene = 19-59; conversion = 0-100% (integral reactor). The model faithfully predicts the effects of operating conditions on the product distribution and is suitable for use in the optimization of C2+ n-alkane production. © 2008 American Chemical Society.

Original language	English (US)
Journal	Industrial and Engineering Chemistry Research
Volume	47
Issue number	4
DOIs	https://doi.org/10.1021/ie071154r
State	Published - Feb 20 2008
Externally published	Yes

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title = "Kinetic modeling for assessing the product distribution in toluene hydrocracking on a Pt/HZSM-5 catalyst",

abstract = "A kinetic model has been proposed to quantify the distribution of product lumps in the hydrocracking of toluene on a bifunctional catalyst prepared by physically mixing Pt/γ-Al2O3 with high-acidity HZSM-5 zeolite (Si/Ai = 15). The current model is based on one that was previously proposed for the hydrogenolytic cracking of methylcyclohexane, given that this is the limiting step because of the rapid hydrogenation of toluene. The experimental results used for calculating the kinetic parameters were obtained in an isothermal fixed-bed reactor under a wide range of operating conditions (250-450°C; WHSV = 2.85-100 h-1, τ = 1.0-3.5 gzeolite h gtoluene-1); pressure = 20-60 bar; molH2/moltoluene = 19-59; conversion = 0-100% (integral reactor). The model faithfully predicts the effects of operating conditions on the product distribution and is suitable for use in the optimization of C2+ n-alkane production. {\textcopyright} 2008 American Chemical Society.",

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T1 - Kinetic modeling for assessing the product distribution in toluene hydrocracking on a Pt/HZSM-5 catalyst

AU - Castaño, Pedro

AU - Arandes, José María

AU - Pawelec, Bárbara

AU - Olazar, Martín

AU - Bilbao, Javier

N1 - Generated from Scopus record by KAUST IRTS on 2019-08-08

PY - 2008/2/20

Y1 - 2008/2/20

N2 - A kinetic model has been proposed to quantify the distribution of product lumps in the hydrocracking of toluene on a bifunctional catalyst prepared by physically mixing Pt/γ-Al2O3 with high-acidity HZSM-5 zeolite (Si/Ai = 15). The current model is based on one that was previously proposed for the hydrogenolytic cracking of methylcyclohexane, given that this is the limiting step because of the rapid hydrogenation of toluene. The experimental results used for calculating the kinetic parameters were obtained in an isothermal fixed-bed reactor under a wide range of operating conditions (250-450°C; WHSV = 2.85-100 h-1, τ = 1.0-3.5 gzeolite h gtoluene-1); pressure = 20-60 bar; molH2/moltoluene = 19-59; conversion = 0-100% (integral reactor). The model faithfully predicts the effects of operating conditions on the product distribution and is suitable for use in the optimization of C2+ n-alkane production. © 2008 American Chemical Society.

AB - A kinetic model has been proposed to quantify the distribution of product lumps in the hydrocracking of toluene on a bifunctional catalyst prepared by physically mixing Pt/γ-Al2O3 with high-acidity HZSM-5 zeolite (Si/Ai = 15). The current model is based on one that was previously proposed for the hydrogenolytic cracking of methylcyclohexane, given that this is the limiting step because of the rapid hydrogenation of toluene. The experimental results used for calculating the kinetic parameters were obtained in an isothermal fixed-bed reactor under a wide range of operating conditions (250-450°C; WHSV = 2.85-100 h-1, τ = 1.0-3.5 gzeolite h gtoluene-1); pressure = 20-60 bar; molH2/moltoluene = 19-59; conversion = 0-100% (integral reactor). The model faithfully predicts the effects of operating conditions on the product distribution and is suitable for use in the optimization of C2+ n-alkane production. © 2008 American Chemical Society.

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DO - 10.1021/ie071154r

M3 - Article

SN - 0888-5885

VL - 47

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 4

ER -

Kinetic modeling for assessing the product distribution in toluene hydrocracking on a Pt/HZSM-5 catalyst

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