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Catalytic converters for automobile diesel engines with adsorption of hydrocarbons on zeolites

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014507" target="_blank" >RIV/60461373:22340/05:00014507 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Catalytic converters for automobile diesel engines with adsorption of hydrocarbons on zeolites

  • Original language description

    A mathematical model of a catalytic converter for automobile diesel engines that contains zeolites for adsorption of hydrocarbons has been developed. The model includes a description of mass- and heat-transfer resistance at the external surface of the monolith washcoat and internal diffusion within the catalytic washcoat layer. Kinetic parameters for adsorption and oxidation of hydrocarbons [propene (C3H6), decane (C10H22), and toluene (C6H5CH3)], CO oxidation, and NOx adsorption and reduction were evaluated on the basis of dynamic experiments. Model simulations of dynamic operation regimes illustrate the effects of the inlet flow rate, temperature and adsorption capacity on the light-off, integral conversions, and spatiotemporal concentration patternsin the monolith. The effects of varying the transport properties of the washcoat layer (effective diffusion coefficient) and washcoat thickness are also investigated.

  • Czech name

    Katalytické konvertory s adsorpcí uhlovodíků na zeolitech, určené pro dieselové automobily

  • Czech description

    Byl vyvinut model katalytického konvertoru určeného pro dieselové automobily; katalysátor obsahuje zeolity pro adsorpci uhlovodíků. Model zahrnuje popis odporů proti přenosu hmoty a tepla, a to jak na vnějším povrchu, tak uvnitř aktivní katalytické vrstvy. Na základě dynamických experimentů byly vyhodnoceny kinetické parametry pro adsorpci a oxidaci uhlovodíků [propenu (C3H6), dekanu (C10H22) a toluenu (C6H5CH3)], oxidaci CO a adsorpci a redukci NOx. Modelové simulace dynamických provozních režimů ukazují vliv průtoku, teploty a adsorpční kapacity na zapálení reakce, celkové konverse a koncentrační profily uvnitř monolitu. Jsou také zkoumány vlivy transportních vlastností a tloušťky katalytické vrstvy (vnitřní difuse).

Classification

  • Type

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

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA104%2F05%2F2616" target="_blank" >GA104/05/2616: Catalytic reactors for combustion of exhaust gases of automobiles</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Ind.Eng.Chem., Res.

  • ISSN

    0888-5885

  • e-ISSN

  • Volume of the periodical

  • Issue of the periodical within the volume

    25

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    9524-9534

  • UT code for WoS article

  • EID of the result in the Scopus database