Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst

Andrés T. Aguayo; Pedro Castaño; Diana Mier; Ana G. Gayubo; Martin Olazar; Javier Bilbao

doi:10.1021/ie200946n

Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst

Andrés T. Aguayo, Pedro Castaño, Diana Mier, Ana G. Gayubo, Martin Olazar, Javier Bilbao

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Abstract

The deactivation by coke of a HZSM-5 zeolite catalyst has been studied in the transformation of methanol into hydrocarbons by cofeeding butane (n-butane). This reaction is of interest as an energy-neutral integrated process that enhances the activity in the cracking reaction and upgrades the paraffins formed as byproducts. The process was carried out in a fixed-bed reactor under the following conditions: temperature, 550 °C; pressure, 1 bar; space time, 2.4 and 4.8 (g of catalyst) h (mol of CH2)-1; time on stream, 5 h; methanol/butane molar ratio, up to 16/1. The coke was characterized using several analytical techniques (TG-TPO, FTIR, Raman, and NMR spectroscopies), and the effects of cofeeding butane on the coke composition and structure were determined. The results in terms of coke content and composition, are explained in terms of the different pathways of methanol and butane transformation. © 2011 American Chemical Society.

Original language	English (US)
Journal	Industrial and Engineering Chemistry Research
Volume	50
Issue number	17
DOIs	https://doi.org/10.1021/ie200946n
State	Published - Sep 7 2011
Externally published	Yes

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title = "Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst",

abstract = "The deactivation by coke of a HZSM-5 zeolite catalyst has been studied in the transformation of methanol into hydrocarbons by cofeeding butane (n-butane). This reaction is of interest as an energy-neutral integrated process that enhances the activity in the cracking reaction and upgrades the paraffins formed as byproducts. The process was carried out in a fixed-bed reactor under the following conditions: temperature, 550 °C; pressure, 1 bar; space time, 2.4 and 4.8 (g of catalyst) h (mol of CH2)-1; time on stream, 5 h; methanol/butane molar ratio, up to 16/1. The coke was characterized using several analytical techniques (TG-TPO, FTIR, Raman, and NMR spectroscopies), and the effects of cofeeding butane on the coke composition and structure were determined. The results in terms of coke content and composition, are explained in terms of the different pathways of methanol and butane transformation. {\textcopyright} 2011 American Chemical Society.",

author = "Aguayo, {Andr{\'e}s T.} and Pedro Casta{\~n}o and Diana Mier and Gayubo, {Ana G.} and Martin Olazar and Javier Bilbao",

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doi = "10.1021/ie200946n",

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T1 - Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst

AU - Aguayo, Andrés T.

AU - Castaño, Pedro

AU - Mier, Diana

AU - Gayubo, Ana G.

AU - Olazar, Martin

AU - Bilbao, Javier

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

PY - 2011/9/7

Y1 - 2011/9/7

N2 - The deactivation by coke of a HZSM-5 zeolite catalyst has been studied in the transformation of methanol into hydrocarbons by cofeeding butane (n-butane). This reaction is of interest as an energy-neutral integrated process that enhances the activity in the cracking reaction and upgrades the paraffins formed as byproducts. The process was carried out in a fixed-bed reactor under the following conditions: temperature, 550 °C; pressure, 1 bar; space time, 2.4 and 4.8 (g of catalyst) h (mol of CH2)-1; time on stream, 5 h; methanol/butane molar ratio, up to 16/1. The coke was characterized using several analytical techniques (TG-TPO, FTIR, Raman, and NMR spectroscopies), and the effects of cofeeding butane on the coke composition and structure were determined. The results in terms of coke content and composition, are explained in terms of the different pathways of methanol and butane transformation. © 2011 American Chemical Society.

AB - The deactivation by coke of a HZSM-5 zeolite catalyst has been studied in the transformation of methanol into hydrocarbons by cofeeding butane (n-butane). This reaction is of interest as an energy-neutral integrated process that enhances the activity in the cracking reaction and upgrades the paraffins formed as byproducts. The process was carried out in a fixed-bed reactor under the following conditions: temperature, 550 °C; pressure, 1 bar; space time, 2.4 and 4.8 (g of catalyst) h (mol of CH2)-1; time on stream, 5 h; methanol/butane molar ratio, up to 16/1. The coke was characterized using several analytical techniques (TG-TPO, FTIR, Raman, and NMR spectroscopies), and the effects of cofeeding butane on the coke composition and structure were determined. The results in terms of coke content and composition, are explained in terms of the different pathways of methanol and butane transformation. © 2011 American Chemical Society.

UR - https://pubs.acs.org/doi/10.1021/ie200946n

U2 - 10.1021/ie200946n

DO - 10.1021/ie200946n

M3 - Article

SN - 0888-5885

VL - 50

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 17

ER -

Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst

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