Skeletal isomerization of tetradecane catalyzed by TON-type zeolites with a fragmented core-shell structure

Masaki Okamoto, Lili Huang, Midori Yamano, Sayuri Sawayama, Yohei Nishimura

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

TON-type zeolites with a core-shell structure were synthesized by crystal overgrowth of an aluminum-free TON-type zeolite on an aluminum-containing TON-type zeolite in the presence of fluoride ion, which was used as a mineralizing reagent to restrain the formation of defects. The core-shell structured zeolite showed greater selectivity for skeletal isomerization in tetradecane hydroisomerization because the acid sites on the external surface of needle-shaped crystals were passivated to inhibit cracking. Breaking the needle-shaped crystals of the core-shell structure to create shorter crystal pieces effectively enhanced the catalytic activity and selectivity for isomerization because new pore entrances were formed.

Original languageEnglish
Pages (from-to)122-128
Number of pages7
JournalApplied Catalysis A: General
Volume455
DOIs
Publication statusPublished - 2013 Mar 30
Externally publishedYes

Fingerprint

Zeolites
Isomerization
Crystals
Aluminum
Needles
Catalyst selectivity
Fluorides
Catalyst activity
Ions
Defects
Acids
n-tetradecane

Keywords

  • Core-shell structure
  • Isomerization
  • Passivation
  • TON-type zeolite

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Skeletal isomerization of tetradecane catalyzed by TON-type zeolites with a fragmented core-shell structure. / Okamoto, Masaki; Huang, Lili; Yamano, Midori; Sawayama, Sayuri; Nishimura, Yohei.

In: Applied Catalysis A: General, Vol. 455, 30.03.2013, p. 122-128.

Research output: Contribution to journalArticle

Okamoto, Masaki ; Huang, Lili ; Yamano, Midori ; Sawayama, Sayuri ; Nishimura, Yohei. / Skeletal isomerization of tetradecane catalyzed by TON-type zeolites with a fragmented core-shell structure. In: Applied Catalysis A: General. 2013 ; Vol. 455. pp. 122-128.
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