Hydroisomerization of Renewable and Fossil n‐Alkanes over Bifunctional Dealuminated ZSM‐5 Catalysts. Issue 6 (26th January 2021)

• Record Type: Journal Article
• Authors: Schmutzler, Felix; Zschiesche, Christopher; Titus, Juliane; Poppitz, David; Freiding, Jens; Rakoczy, Rainer; Reitzmann, Andreas; Gläser, Roger
• Other Names: Stöcker Michael guestEditor.; Kärger Jörg guestEditor.; Wagemann Kurt guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 93:Issue 6(2021)
• Page Start: 981
• Page End: 989
• Publication Date: 2021-01-26
• Subjects: Bifunctional Pt/H‐ZSM‐5 catalysts -- Dealumination -- Hydroisomerization -- Hydrothermal treatment -- Long‐chain alkanes; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202000163
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: The hydroisomerization of two long‐chain n‐alkane mixtures was investigated over bifunctional Pt/H‐ZSM‐5 catalysts before and after dealumination of preshaped zeolite/binder pellets. The hydroisomerization over the dealuminated catalysts leads to more isomers and less cracking products. Consequently, higher ratios of multi‐ to mono‐branched isomerization products are formed as expected for large‐ rather than medium‐pore zeolites. This indicates a higher availability of space in the vicinity of the active sites and provides an attractive route to make medium‐pore zeolites suitable for upgrading higher boiling hydrocarbon feeds. Abstract : Bifunctional catalysts are obtained by loading Pt on shaped pellets containing zeolite H‐ZSM‐5 and Al2 O3 as a binder after dealumination by hydrothermal treatment. The hydroisomerization of two different long‐chain hydrocarbon mixtures (C10 ‐C13 and C15 ‐C22 ) over the dealuminated catalysts leads to more isomers and less cracking products.