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Synthesis of pyridines over zeolites in gas phase

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00091836" target="_blank" >RIV/61388955:_____/07:00091836 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Synthesis of pyridines over zeolites in gas phase

  • Original language description

    Pyridine and its methyl derivatives were synthesized in vapor phase from ethanol, formaldehyde and ammonia over zeolites H-ZSM-5, Beta, mordenite and over SiO2. Both the Si/Al molar ratio and modification of zeolite with zinc strongly influenced the selectivity in pyridine and alkylpyridines formation. The highest yield of pyridine was obtained over ZSM-5 modified with zinc and the highest pyridine-to-alkylpyridines ratio was achieved over H-ZSM-5 with high Si content (Si/Al ratio 140). The conversion of ethanol and the selectivity in pyridine formation were correlated with the acidity of used catalyst.

  • Czech name

    Syntéza pyridinů v plynné fázi na zeolitech

  • Czech description

    Pyridin a jeho methylové deriváty byly syntetizovány v plynné fázi z ethanolu, formaldehydu a amoniaku. Reakce byla katalyzována několika typy zeolitů (H-ZSM-5, Beta, Mordenit) a SiO2. Selektivitu vzniku pyridinu i alkylpyridinů byla silně ovlivňována jednak poměrem Si/Al a také modifikací zeolitů zinkem. Nejvyšší výtěžek pyridinu byl získán reakcí katalyzovanou zeolitem ZSM-5 modifikovaným zinkem a nejvyššího poměru pyridin/alkylparidiny bylo dosaženo při použití H-ZSM-5 s vysokým obsahem křemíku (Si/Al 140).

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)<br>R - Projekt Ramcoveho programu EK

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Collection of Czechoslovak Chemical Communications

  • ISSN

    0010-0765

  • e-ISSN

  • Volume of the periodical

    72

  • Issue of the periodical within the volume

    5-6

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    11

  • Pages from-to

    618-628

  • UT code for WoS article

  • EID of the result in the Scopus database