Catalytic performance of medium and large-pore zeolites for vapor-phase methylation of 2-methylnaphthalene

Shyamal Kumar Saha, Chen Zhang, Chunshan Song

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Several medium and large pore molecular sieves were synthesized by hydrothermal synthesis method and examined for methylation of 2-methylnaphthalene. All the molecular sieves show good crystallinity with pure phase under the condition used. The physical properties of the materials were measured by the BET sorption method. The synthesized materials show microporous nature with typical type-I isotherm. However, BEA and MCM-22 shows slightly mesoporous characteristics with hysteresis loop. The activity of the molecular sieves catalysts for methylation of 2-methylnaphthalne decreases in the following order: Y=BEA>MCM-22>ZSM-5>SAPO-5. The rapid deactivation occurred in Y and BEA zeolite within 2 h time on stream (TOS). However, MCM-22 gave reasonable activity (50-40 % conv) with more stable performance. The SAPO-5 and ZSM-5 shows poor activity. The selectivity ratio of 2,6-DMN/2,7-DMN decreases in the order of SAPO-5>BEA=Y>MCM-22>ZSM-5.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
StatePublished - Dec 1 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: Aug 16 2009Aug 20 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CityWashington, DC
Period8/16/098/20/09

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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    Saha, S. K., Zhang, C., & Song, C. (2009). Catalytic performance of medium and large-pore zeolites for vapor-phase methylation of 2-methylnaphthalene. In American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).