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Nonlinear phenomena and qualitative evaluation of risk of clogging in a capillary microreactor under imposed electric field

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014548" target="_blank" >RIV/60461373:22340/05:00014548 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Nonlinear phenomena and qualitative evaluation of risk of clogging in a capillary microreactor under imposed electric field

  • Original language description

    The studied microsystem consists of two reservoirs containing aqueous electrolytes, a solution of potassium carbonate and a solution of calcium chloride, separated by a microcapillary containing a hydrogel. As the calcium and the carbonate ions diffuse and/or migrate in electric field in the microcapillary, calcium carbonate is formed and the risk of clogging increases at the locations where the concentration product of the calcium and carbonate ions exceeds the CaCO3 solubility product.Two qualitatively different spatio-temporal concentration patterns in the microcapillary of finite length in dependence on the applied difference of the electric potential have been found by means of the dynamical analysis. We have observed patterns with one and two maxima on the spatial profile of reaction rate of the calcium-carbonate interaction. Bifurcation diagram, in which the peak splitting has been clearly detected, was computed in dependence on the imposed gradient of electric potential. The pe

  • Czech name

    Nelineární jevy a kvalitativní zhodnocení rizika ucpání v kapilárovém mikroreaktoru při vloženém elektrickém poli

  • Czech description

    Studovaný mikrosystém sestává ze dvou rezervoárů obsahující vodné elektrolyty uhličitanu draselného a chloridu vápenatého a mikrokapiláry obsahující hydrogel. Když vápenaté a uhličitanové ionty difundují a migrují v elektrickém poli do mikrokapiláry, vzniká uhličitan vápenatý, který může způsobit ucpání mikroapiláry. Byly pozorovány kvalitativně odlišné koncentrační struktury v závislosti na aplikované intenzitě elektrického pole, například rozštěpení píku koncentrace uhličitanu vápenatého. Oblasti s rizikem ucpání mikrokapiláry sraženinou uhličitanu vápenatého byly určeny v parametrickém prostoru.

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%2F04%2F1442" target="_blank" >GA104/04/1442: Mass, heat and momentum transport in micro- and nano-structured ionic chemicaly reacting systems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

    Chemical Engineering Journal

  • ISSN

    1385-8947

  • e-ISSN

  • Volume of the periodical

    105

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    11

  • Pages from-to

    99-109

  • UT code for WoS article

  • EID of the result in the Scopus database