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IR Operando study of ethanol dehydration over MFI zeolite

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00506558" target="_blank" >RIV/61388955:_____/18:00506558 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11310/18:10386114

  • Result on the web

    <a href="http://hdl.handle.net/11104/0297792" target="_blank" >http://hdl.handle.net/11104/0297792</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.cattod.2017.09.020" target="_blank" >10.1016/j.cattod.2017.09.020</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    IR Operando study of ethanol dehydration over MFI zeolite

  • Original language description

    Zeolite-catalyzed dehydration of ethanol is an attractive economically feasible route for production of ethylene and butenes. The goal of this contribution is to monitor the intermediate species on the surface of ´´working´´ catalyst to rationalize the influence of the reaction conditions and zeolite characteristics on the dehydration pathways. With this respect the rates of diethyl ether (DEE) and ethylene formation in ethanol dehydration along with the quantification of the surface-intermediates (ethanol monomer and dimer) were simultaneously assessed under different reaction conditions in H-MFI zeolite. The reaction conditions (pressure, temperature, and ethanol conversion) control the population of surface intermediates and hence determine the dominant reaction mechanism. The results support the prevalence of dimer-assisted etherification at high ethanol pressures and enhanced contribution of ethoxide-mediated route with increasing the temperature. At high conversion, the DEE decomposition route producing ethylene was confirmed for H-MFI at 488 K along with ethoxide-mediated pathway.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10403 - Physical chemistry

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Catalysis Today

  • ISSN

    0920-5861

  • e-ISSN

  • Volume of the periodical

    304

  • Issue of the periodical within the volume

    APR 2018

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    7

  • Pages from-to

    51-57

  • UT code for WoS article

    000425179000007

  • EID of the result in the Scopus database

    2-s2.0-85029531486