Dehydrocyclization of C6 Hydrocarbon with and Without Oxygen Containing Substituent over Pt/(Na)-Al2O3 Catalyst

Muthu Kumaran Gnanamani; Wilson D. Shafer; Robert A. Keogh; Burtron H. Davis

doi:10.1007/s10562-015-1643-z

Dehydrocyclization of C₆ Hydrocarbon with and Without Oxygen Containing Substituent over Pt/(Na)-Al₂O₃ Catalyst

Muthu Kumaran Gnanamani, Wilson D. Shafer, Robert A. Keogh, Burtron H. Davis

Center for Applied Energy Research (CAER)

Research output: Contribution to journal › Article › peer-review

Abstract

The presence of hydroxyl or keto functional group affects both activity and selectivity for dehydrocyclization of C₆ hydrocarbon over Pt/(Na)-Al₂O₃ catalyst. Under similar reaction conditions, n-hexane produces benzene as the primary product (>40 %), whereas dehydration is a major reaction pathway for 2-hexanol and yields mainly hexenes (>70 %). However, 2-hexanone was found to be involved in a variety of reactions over Pt/(Na)-Al₂O₃ catalyst and produces lower hydrocarbons (C₂-C₅), 5-dodecanone, 2- And 5-nonanones, and 2-acetyl-3-propyl-2-cyclohexen-1-one. The presence of hydroxyl (-OH) or keto group (=C=O) at the C-2 position alters the interaction of C₆ hydrocarbon with the catalyst surface which eventually controls the overall product selectivity.

Original language	English
Pages (from-to)	424-432
Number of pages	9
Journal	Catalysis Letters
Volume	146
Issue number	2
DOIs	https://doi.org/10.1007/s10562-015-1643-z
State	Published - Feb 1 2016

Bibliographical note

Publisher Copyright:
© 2015 Springer Science+Business Media New York.

Keywords

2-Acetyl-3-propyl-2-cyclohexene-1-one
2-Hexanol
2-Hexanone
Benzene
Dehydrocyclization
Hydrogenolysis
n-Hexane

ASJC Scopus subject areas

Catalysis
General Chemistry

Access to Document

10.1007/s10562-015-1643-z

Cite this

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title = "Dehydrocyclization of C6 Hydrocarbon with and Without Oxygen Containing Substituent over Pt/(Na)-Al2O3 Catalyst",

abstract = "The presence of hydroxyl or keto functional group affects both activity and selectivity for dehydrocyclization of C6 hydrocarbon over Pt/(Na)-Al2O3 catalyst. Under similar reaction conditions, n-hexane produces benzene as the primary product (>40 %), whereas dehydration is a major reaction pathway for 2-hexanol and yields mainly hexenes (>70 %). However, 2-hexanone was found to be involved in a variety of reactions over Pt/(Na)-Al2O3 catalyst and produces lower hydrocarbons (C2-C5), 5-dodecanone, 2- And 5-nonanones, and 2-acetyl-3-propyl-2-cyclohexen-1-one. The presence of hydroxyl (-OH) or keto group (=C=O) at the C-2 position alters the interaction of C6 hydrocarbon with the catalyst surface which eventually controls the overall product selectivity.",

keywords = "2-Acetyl-3-propyl-2-cyclohexene-1-one, 2-Hexanol, 2-Hexanone, Benzene, Dehydrocyclization, Hydrogenolysis, n-Hexane",

author = "Gnanamani, {Muthu Kumaran} and Shafer, {Wilson D.} and Keogh, {Robert A.} and Davis, {Burtron H.}",

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year = "2016",

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doi = "10.1007/s10562-015-1643-z",

language = "English",

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AU - Gnanamani, Muthu Kumaran

AU - Shafer, Wilson D.

AU - Keogh, Robert A.

AU - Davis, Burtron H.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - The presence of hydroxyl or keto functional group affects both activity and selectivity for dehydrocyclization of C6 hydrocarbon over Pt/(Na)-Al2O3 catalyst. Under similar reaction conditions, n-hexane produces benzene as the primary product (>40 %), whereas dehydration is a major reaction pathway for 2-hexanol and yields mainly hexenes (>70 %). However, 2-hexanone was found to be involved in a variety of reactions over Pt/(Na)-Al2O3 catalyst and produces lower hydrocarbons (C2-C5), 5-dodecanone, 2- And 5-nonanones, and 2-acetyl-3-propyl-2-cyclohexen-1-one. The presence of hydroxyl (-OH) or keto group (=C=O) at the C-2 position alters the interaction of C6 hydrocarbon with the catalyst surface which eventually controls the overall product selectivity.

AB - The presence of hydroxyl or keto functional group affects both activity and selectivity for dehydrocyclization of C6 hydrocarbon over Pt/(Na)-Al2O3 catalyst. Under similar reaction conditions, n-hexane produces benzene as the primary product (>40 %), whereas dehydration is a major reaction pathway for 2-hexanol and yields mainly hexenes (>70 %). However, 2-hexanone was found to be involved in a variety of reactions over Pt/(Na)-Al2O3 catalyst and produces lower hydrocarbons (C2-C5), 5-dodecanone, 2- And 5-nonanones, and 2-acetyl-3-propyl-2-cyclohexen-1-one. The presence of hydroxyl (-OH) or keto group (=C=O) at the C-2 position alters the interaction of C6 hydrocarbon with the catalyst surface which eventually controls the overall product selectivity.

KW - 2-Acetyl-3-propyl-2-cyclohexene-1-one

KW - 2-Hexanol

KW - 2-Hexanone

KW - Benzene

KW - Dehydrocyclization

KW - Hydrogenolysis

KW - n-Hexane

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