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- W2326567923 abstract "The aromatization of various olefins over Ga loaded HZSM-5 catalyst was studied to propose a detailed reaction scheme from butane to aromatic hydrocarbons. The comparison of the results with those observed on HZSM-5 was made to clarify the role of Ga for the development of a better catalyst for aromatization. The first step of the aromatization of butane would be dehydrogenation of butane to produce butenes accelerated by Ga species loaded on HZSM-5. Ethylene and propylene were also produced as primary products by cracking of butane accompanied with simultaneous formation of ethane and methane, respectively. After these reactions, a pool of C2-C9 olefins was built up through oligomerization of C2-C4 olefins produced in the first step and subsequent cracking of the oligomers. A part of the mixture of olefins would produce C7-C9 alkylcyclohexenes, and then C7-C9 alkylbenzenes would be formed by dehydrogenation of the corresponding alkylcyclohexenes through alkylcyclohexadienes. Benzene is not a primary product in aromatics, but the secondary product formed by dealkylation and transalkylation of C7-C9 alkylbenzenes. The reaction steps which determine the selectivity to aromatics would be both dehydrogenation steps of butane and alkylcyclohexenes because among many reaction steps from butane to aromatics, these two steps were mainly accelerated by Ga species. When HZSM-5 is used as an acid catalyst, the loading of dehydrogenation catalyst with slightly higher activity than Ga is expected to provide a catalyst better than Ga loaded HZSM-5 for the selective aromatization of butane." @default.
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- W2326567923 date "1998-01-01" @default.
- W2326567923 modified "2023-09-26" @default.
- W2326567923 title "Reaction Scheme of Aromatization of Butane over Ga Loaded HZSM-5 Ctalyst." @default.
- W2326567923 doi "https://doi.org/10.1627/jpi1958.41.37" @default.
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