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Hydroisomerization of Long‐Chain n ‐Alkanes over Bifunctional Zeolites with 10‐Membered‐ and 12‐Membered‐Ring Pores
Author(s) -
Zschiesche Christopher,
Himsl Dieter,
Rakoczy Rainer,
Reitzmann Andreas,
Freiding Jens,
Wilde Nicole,
Gläser Roger
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700236
Subject(s) - bifunctional , ring (chemistry) , zeolite , catalysis , chemistry , platinum , selectivity , bifunctional catalyst , cracking , alkane , ring size , organic chemistry
The hydroisomerization of a C 10 –C 13 n ‐alkane mixture was investigated over six bifunctional platinum‐containing zeolite catalysts with 10‐ and 12‐membered‐ring pore systems. The catalysts with 12‐membered‐ring zeolites are more active than those with 10‐membered‐ring zeolites. In contrast, higher yields of the desired monobranched isomers are obtained over the 10‐membered‐ring zeolites due to shape‐selectivity effects. For the 10‐membered‐ring zeolites, higher reaction temperatures are required for achieving the maximum isomer yields, which leads to more cracking products compared to the 12‐membered‐ring zeolites.