Aromatization of ethylene over zeolite-based catalysts

Evgeny A. Uslamin, H. Saito, Nikolay A. Kosinov, Evgeny A. Pidko, Y. Sekine, Emiel J.M. Hensen

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

Light aromatic compounds (BTX: benzene, toluene and xylenes) represent an important class of building blocks in the chemical industry. Currently, light aromatics are obtained exclusively from fossil feedstock, whose utilization is associated with serious environmental concerns. Developing new routes for a more sustainable production of BTX is, therefore, of high importance. In this work, aromatization of ethylene over well-defined metal-modified HZSM-5 zeolite catalysts is examined. The results show that modification of zeolite with gallium, zinc and silver leads to a significant increase in aromatics production. Metal species are responsible for catalysing dehydrogenation pathways with Ga being the most efficient for BTX production. Increasing temperature and ethylene partial pressure facilitate ethylene aromatization. Employing isotope labelling and characterization of zeolite-entrapped species by IR and MAS NMR spectroscopy provide evidence for the involvement of intra-zeolite aromatic hydrocarbon species in the catalytic cycle.
Originele taal-2Engels
TijdschriftCatalysis Science & Technology
DOI's
StatusGeaccepteerd/In druk - 2020

Vingerafdruk

Aromatization
Zeolites
Ethylene
Catalysts
Aromatic compounds
Aromatic hydrocarbons
Metals
Gallium
Dehydrogenation
Xylene
Chemical industry
Aromatic Hydrocarbons
Partial pressure
Xylenes
Labeling
Feedstocks
Nuclear magnetic resonance spectroscopy
Isotopes
Toluene
Benzene

Citeer dit

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title = "Aromatization of ethylene over zeolite-based catalysts",
abstract = "Light aromatic compounds (BTX: benzene, toluene and xylenes) represent an important class of building blocks in the chemical industry. Currently, light aromatics are obtained exclusively from fossil feedstock, whose utilization is associated with serious environmental concerns. Developing new routes for a more sustainable production of BTX is, therefore, of high importance. In this work, aromatization of ethylene over well-defined metal-modified HZSM-5 zeolite catalysts is examined. The results show that modification of zeolite with gallium, zinc and silver leads to a significant increase in aromatics production. Metal species are responsible for catalysing dehydrogenation pathways with Ga being the most efficient for BTX production. Increasing temperature and ethylene partial pressure facilitate ethylene aromatization. Employing isotope labelling and characterization of zeolite-entrapped species by IR and MAS NMR spectroscopy provide evidence for the involvement of intra-zeolite aromatic hydrocarbon species in the catalytic cycle.",
author = "Uslamin, {Evgeny A.} and H. Saito and Kosinov, {Nikolay A.} and Pidko, {Evgeny A.} and Y. Sekine and Hensen, {Emiel J.M.}",
year = "2020",
doi = "10.1039/C9CY02108F",
language = "English",
journal = "Catalysis Science & Technology",
issn = "2044-4753",
publisher = "Royal Society of Chemistry",

}

Aromatization of ethylene over zeolite-based catalysts. / Uslamin, Evgeny A.; Saito, H.; Kosinov, Nikolay A.; Pidko, Evgeny A.; Sekine, Y.; Hensen, Emiel J.M.

In: Catalysis Science & Technology, 2020.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Aromatization of ethylene over zeolite-based catalysts

AU - Uslamin, Evgeny A.

AU - Saito, H.

AU - Kosinov, Nikolay A.

AU - Pidko, Evgeny A.

AU - Sekine, Y.

AU - Hensen, Emiel J.M.

PY - 2020

Y1 - 2020

N2 - Light aromatic compounds (BTX: benzene, toluene and xylenes) represent an important class of building blocks in the chemical industry. Currently, light aromatics are obtained exclusively from fossil feedstock, whose utilization is associated with serious environmental concerns. Developing new routes for a more sustainable production of BTX is, therefore, of high importance. In this work, aromatization of ethylene over well-defined metal-modified HZSM-5 zeolite catalysts is examined. The results show that modification of zeolite with gallium, zinc and silver leads to a significant increase in aromatics production. Metal species are responsible for catalysing dehydrogenation pathways with Ga being the most efficient for BTX production. Increasing temperature and ethylene partial pressure facilitate ethylene aromatization. Employing isotope labelling and characterization of zeolite-entrapped species by IR and MAS NMR spectroscopy provide evidence for the involvement of intra-zeolite aromatic hydrocarbon species in the catalytic cycle.

AB - Light aromatic compounds (BTX: benzene, toluene and xylenes) represent an important class of building blocks in the chemical industry. Currently, light aromatics are obtained exclusively from fossil feedstock, whose utilization is associated with serious environmental concerns. Developing new routes for a more sustainable production of BTX is, therefore, of high importance. In this work, aromatization of ethylene over well-defined metal-modified HZSM-5 zeolite catalysts is examined. The results show that modification of zeolite with gallium, zinc and silver leads to a significant increase in aromatics production. Metal species are responsible for catalysing dehydrogenation pathways with Ga being the most efficient for BTX production. Increasing temperature and ethylene partial pressure facilitate ethylene aromatization. Employing isotope labelling and characterization of zeolite-entrapped species by IR and MAS NMR spectroscopy provide evidence for the involvement of intra-zeolite aromatic hydrocarbon species in the catalytic cycle.

U2 - 10.1039/C9CY02108F

DO - 10.1039/C9CY02108F

M3 - Article

JO - Catalysis Science & Technology

JF - Catalysis Science & Technology

SN - 2044-4753

ER -