Selective ring opening of 1-methylnaphthalene over niw-supported catalyst using dealuminated beta zeolite

Eun Sang Kim, You Jin Lee, Jeong Rang Kim, Joo Wan Kim, Tae Wan Kim, Ho Jeong Chae, Chul Ung Kim, Chang Ha Lee, Soon Yong Jeong

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5 Citations (Scopus)

Abstract

Nanoporous Beta zeolite was dealuminated by weak acid treatment for reducing the acidity. Bi-functional catalysts were prepared using commercial Beta zeolites and the dealuminated zeolites for acidic function, NiW for metallic function. 1-Methylnaphthalene was selected as a model compound for multi-ring aromatics in heavy oil, and its selective ring opening reaction has been investigated using the prepared bi-functional catalysts with different acidity in fixed bed reaction system. The dealuminated Beta zeolites, which crystal structure and nanoporosity were maintained, showed the higher SiO2/Al2O3 ratio and smaller acidity than their original zeolite. NiW-supported catalyst using the dealuminated Beta zeolite with SiO2/Al2O3 mole ratio of 55 showed the highest performance for the selective ring opening. The acidity of catalyst seemed to play an important role as active sites for the selective ring opening of 1-methylnaphthalene but there should be some optimum catalyst acidity for the reaction. The acidity of Beta zeolite could be controlled by the acid treatment and the catalyst with the optimum acidity for the selective ring opening could be prepared.

Original languageEnglish
Pages (from-to)1715-1719
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume16
Issue number2
DOIs
Publication statusPublished - 2016 Feb 1

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All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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