Conversion of Light Alkanes into Aromatic Hydrocarbons .VII. Aromatization of Propane on Gallosilicates: Effect of Calcination in Dry Air

Giannetto, G.; Montes, A.; Gnep, N.S.; Florentino, Ariovaldo O.; Cartraud, P.; Guisnet, M.

doi:10.1006/jcat.1994.1011

Cited by 92 publications

(25 citation statements)

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“…Zn/HZSM-5 [6], GaMFI [7,8] and H-GaAlMFI [9,10], studies covering the influence of reaction temperature and space velocity on the product distribution in the conversion of larger olefins over HZSM-5 zeolite are scarce. The main components of olefins in FCC gasoline are C 5 -C 8 olefins.…”

Section: Introductionmentioning

confidence: 99%

Conversion of n-Octene over Nanoscale HZSM-5 Zeolite

et al. 2008

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Transformation of n-octene has been investigated over nanoscale HZSM-5 at different reaction temperature and contact time. The results show that the main reaction was isomerization of n-octene over 200°C. Hydrogen transfer reaction also occurred at 200°C, but the products were alkanes and cycloolefins instead of aromatics. The aromatization was promoted by high temperature. The maximum selectivity of i-paraffins occurred between 300 and 350°C. Propene, butene and pentene were the primary cracking products. These olefins were oligomerized and cracked to produce a wide distribution of olefins with different carbon atoms. These intermediates then were quickly transformed into aromatics and alkanes by hydrogen transfer over acid sites at high reaction temperature. Propane and butane can be transformed into methane and ethane at long contact time above 400°C.

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Section: Introductionmentioning

confidence: 99%

Conversion of n-Octene over Nanoscale HZSM-5 Zeolite

et al. 2008

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“…The catalytic role of metal cations in light alkane aromatization remains the subject of controversy even after significant emphasis and numerous publications. Guisnet et al (3,4,10,18,40,46,49) observed a higher initial rate of propene formation when metal cations (Ga) were added, leading them to suggest that propane dehydrogenation and naphthene dehydrogenation steps occur on the Ga cations. They suggested that all other required steps occurred on Bronsted acid sites within zeolite channels.…”

Section: Introductionmentioning

confidence: 99%

Reaction Pathways and Rate-Determining Steps in Reactions of Alkanes on H-ZSM5 and Zn/H-ZSM5 Catalysts

Biscardi

Iglesia

1999

Journal of Catalysis

197

204

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“…Several attempts have been made to enhance the catalytic activity of zeolites and to alter the product distribution by adding different metals and oxides to ZSM-5 [33][34][35][36][37][38][39][40][41]. As regards the aromatization of n-butane, Zn and Ga proved to be the most active promoters [41][42][43][44][45][46].…”

Section: Pure Zsm-5 Samplesmentioning

confidence: 99%

Aromatization of n-butane and 1-butene over supported Mo2C catalyst

Solymosi¹

2004

Journal of Catalysis

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Conversion of Light Alkanes into Aromatic Hydrocarbons .VII. Aromatization of Propane on Gallosilicates: Effect of Calcination in Dry Air

Cited by 92 publications

References 0 publications

Conversion of n-Octene over Nanoscale HZSM-5 Zeolite

Conversion of n-Octene over Nanoscale HZSM-5 Zeolite

Reaction Pathways and Rate-Determining Steps in Reactions of Alkanes on H-ZSM5 and Zn/H-ZSM5 Catalysts

Aromatization of n-butane and 1-butene over supported Mo2C catalyst

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