A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Isomerization of Xylenes (a Review)
https://orcid.org/https://orcid.org/0000-0003-0492-4094
https://orcid.org/https://orcid.org/0000-0002-3048-8495
https://orcid.org/https://orcid.org/0000-0002-0570-6577
https://orcid.org/https://orcid.org/0000-0002-2877-0395
The review deals with catalysts for isomerization of the C-8 aromatic fraction with the aim of obtaining valuable petrochemical products: o- and p-xylenes required for the subsequent synthesis of phthalic anhydride, dimethyl terephthalate, and terephthalic acid. Mono- and bimolecular mechanisms of xylene isomerization and ethylbenzene transformation pathways (isomerization, dealkylation, disproportionation, transalkylation, and hydrogenation) on various catalysts are discussed. Catalysts containing zeolites of structural types MFI, MTW, MOR, TUN, NES, CON, and BEA and composite materials based on zeolites and ordered mesoporous aluminosilicates (МСМ-41, МСМ-48) are considered. The effect that the structural and acid properties of support and the kind of the metal component and promoters exert on the course of the main and side reactions occurring in the course of isomerization of xylenes is demonstrated. Data on key commercial processes and catalysts are systematized.
Isomerization of Xylenes (a Review)
https://orcid.org/https://orcid.org/0000-0003-0492-4094
https://orcid.org/https://orcid.org/0000-0002-3048-8495
https://orcid.org/https://orcid.org/0000-0002-0570-6577
https://orcid.org/https://orcid.org/0000-0002-2877-0395
The review deals with catalysts for isomerization of the C-8 aromatic fraction with the aim of obtaining valuable petrochemical products: o- and p-xylenes required for the subsequent synthesis of phthalic anhydride, dimethyl terephthalate, and terephthalic acid. Mono- and bimolecular mechanisms of xylene isomerization and ethylbenzene transformation pathways (isomerization, dealkylation, disproportionation, transalkylation, and hydrogenation) on various catalysts are discussed. Catalysts containing zeolites of structural types MFI, MTW, MOR, TUN, NES, CON, and BEA and composite materials based on zeolites and ordered mesoporous aluminosilicates (МСМ-41, МСМ-48) are considered. The effect that the structural and acid properties of support and the kind of the metal component and promoters exert on the course of the main and side reactions occurring in the course of isomerization of xylenes is demonstrated. Data on key commercial processes and catalysts are systematized.
Isomerization of Xylenes (a Review)
https://orcid.org/https://orcid.org/0000-0003-0492-4094
https://orcid.org/https://orcid.org/0000-0002-3048-8495
https://orcid.org/https://orcid.org/0000-0002-0570-6577
https://orcid.org/https://orcid.org/0000-0002-2877-0395
The review deals with catalysts for isomerization of the C-8 aromatic fraction with the aim of obtaining valuable petrochemical products: o- and p-xylenes required for the subsequent synthesis of phthalic anhydride, dimethyl terephthalate, and terephthalic acid. Mono- and bimolecular mechanisms of xylene isomerization and ethylbenzene transformation pathways (isomerization, dealkylation, disproportionation, transalkylation, and hydrogenation) on various catalysts are discussed. Catalysts containing zeolites of structural types MFI, MTW, MOR, TUN, NES, CON, and BEA and composite materials based on zeolites and ordered mesoporous aluminosilicates (МСМ-41, МСМ-48) are considered. The effect that the structural and acid properties of support and the kind of the metal component and promoters exert on the course of the main and side reactions occurring in the course of isomerization of xylenes is demonstrated. Data on key commercial processes and catalysts are systematized.
Isomerization of Xylenes (a Review)
Pet. Chem.
Demikhova, N. R. (author) / Rubtsova, M. I. (author) / Vinokurov, V. A. (author) / Glotov, A. P. (author)
Petroleum Chemistry ; 61 ; 1158-1177
2021-11-01
20 pages
Article (Journal)
Electronic Resource
English
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Xylenes Alkylation with 2-(1-Adamantylimino)-5-methyl-1,3-oxathiolane
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