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Hydroisomerization of Renewable and Fossil n‐Alkanes over Bifunctional Dealuminated ZSM‐5 Catalysts
Author(s) -
Schmutzler Felix,
Zschiesche Christopher,
Titus Juliane,
Poppitz David,
Freiding Jens,
Rakoczy Rainer,
Reitzmann Andreas,
Gläser Roger
Publication year - 2021
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202000163
Subject(s) - bifunctional , isomerization , catalysis , zeolite , hydrocarbon , alkane , cracking , bifunctional catalyst , chemical engineering , molecular sieve , chemistry , zsm 5 , methane , organic chemistry , materials science , engineering
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.