Gaois

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8 results

  1. ENVIRONMENT|environmental policy|pollution control measures

    #601826

    IATE #137838
    dí-ocsaídiú neamhchatalaíoch roghnaitheach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    SNCR Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    SNCR | Selektive nicht-katalytische Reduktion
    de
    Definition DeNOx-Verfahren (Denitrifikations-Verfahren, Rauchgasentstickung), um Stickoxide (NOx) in Rauchgasen abzubauen Reference "Chemie-Lexikon, s. v. ""Selektive nicht-katalytische Reduktion"", http://www.chemie.de/lexikon/Selektive_nicht-katalytische_Reduktion.html (27.8.2015)"
    selective non-catalytic reduction | SNCR
    en
    Definition technology which reduces NOx emissions by injecting urea into the furnace flue gas in an appropriate temperature window, NOx reacting with urea to form harmless nitrogen, water, and a small amount of CO Reference "Based on: IEA Clean Coal Centre. Selective non-catalytic reduction (SNCR) for NOx control. (4.2.2020)"
    Comment This process takes place only in a narrow 200°C (390°F) temperature range, below which NH3 (ammonia) is formed and above which NOx emission levels actually increase.
    réduction non catalytique sélective | SNCR | RNCS
    fr
    Definition procédé de traitement des gaz de combustion (fumées) pour en éliminer les oxydes de soufre, par injection d'ammoniac ou d'une solution d'urée aqueuse de 900 °C à 1 100 °C, directement après la chambre de combustion et réaction des oxydes d'azote, avec les composés d'ammonium, à l'azote et à l'eau Reference "COM-FR d'après SICK > Épuration des gaz de combustion https://www.sick.com/fr/fr/industries/waste-and-recycling/waste-incineration-plants-waste-to-energy/exhaust-gas-purification/denitrification-systems/operation-of-an-sncr-denitrification-system-selective-non-catalytic-reduction/c/p371206 [18.5.2017]"
    Comment "Voir aussi:- réduction catalytique sélective [ IATE:1409316 ]"
  2. INDUSTRY|iron, steel and other metal industries

    #627941

    IATE #1421265
    dí-ocsaídiú Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Desoxidation
    de
    Definition Abspalten oder Austreiben von Sauerstoff, zum Beispiel aus organischen Verbindungen oder aus Metallschmelzen durch Zusatz verschiedener Substanzen Reference Reallex Med
    deoxidation
    en
    Definition removal of excess oxygen present in molten metal in the form of oxydes, usually accomplished by adding materials with a high affinity for oxygen Reference CIATF. Dictionnaire idéologique de fonderie (Indexed Foundry Dictionary). Éditions techniques des industries de la fonderie, Paris. 1979
    Comment "See also: Key to Metals. Steel Deoxidation: Part Two http://www.keytometals.com/page.aspx?ID=CheckArticle&site=kts&NM=218 [10.1.2012]"
    désoxydation
    fr
    Definition élimination de l'oxygène d'un métal liquide où il se trouve essentiellement sous forme d'oxydes Reference CIATF Dic.idéologique fonderie 1979
  3. INDUSTRY|chemistry

    #629975

    IATE #1505717
    dí-ocsaídiú Reference 'díocsaídiú'. Hussey, M. Fréamh an Eolais. Coiscéim, Baile Átha Cliath, 2011. ;Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Definition próiseas nó imoibriú ceimiceach ina ngnóthaítear leictreoin, a thionlacann oscaídiú, nó cailliúint leictreon, i gcónaí Reference 'díocsaídiú'. Hussey, M. Fréamh an Eolais. Coiscéim, Baile Átha Cliath, 2011.
    Reduktion
    de
    Definition die Wegnahme von O oder die Aufnahme von H beziehungsweise von Elektronen als-mit Oxidation gekoppelter-Teilprozess einer Redoxreaktion Reference Reallex Med
    reduction
    en
    Definition "complete transfer of one or more electrons to a molecular entity (also called 'electronation'), and, more generally, the reverse of oxidation [ IATE:1085350 ]" Reference "IUPAC. Compendium of Chemical Terminology, 2nd ed. (the ""Gold Book""). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8, https://goldbook.iupac.org/html/R/R05222.html [2.6.2017]"
    réduction
    fr
    Definition 2)chim.:soustraction d'oxygène ou adjonction d'hydrogène à une substance, ou captation d'électrons par un atome Reference 1)Reallex Med
  4. INDUSTRY|chemistry

    #608368

    IATE #817243
    dí-ocsaídiú catalaíoch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    katalytische Reduktion
    de
    Comment MISC: aus EG-Wörterverzeichnis.
    catalytic reduction
    en
    Definition "reduction [ IATE:1505717 ] of a substance in presence of a reducing agent [ IATE:1423969 ] and a catalyst [ IATE:1421099 ]" Reference "COM-Terminology Coordination, based on:Eredzhep Menumerov, Robert A. Hughes, and Svetlana Neretina. Catalytic Reduction of 4-Nitrophenol: A Quantitative Assessment of the Role of Dissolved Oxygen in Determining the Induction Time. Nano Letters 2016 16 (12), 7791-7797. DOI: 10.1021/acs.nanolett.6b03991, http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b03991 [6.6.2017]"
    réduction catalytique
    fr
  5. INDUSTRY|chemistry

    #623021

    IATE #1230805
    dí-ocsaídiú ceimiceach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    chemische Reduktion
    de
    chemical reduction
    en
    Definition "reduction using a chemical reducing agent" Reference "COM-Terminology Coordination, based on:FRTR, Remediation Technologies Screening Matrix and Reference Guide, Version 4.0, Soil, Sediment, Bedrock and Sludge > 3.10 In Situ Physical/Chemical Treatment > 4.4 Chemical Oxidation (29.1.2020)"
    Comment "In contrast to reduction due to microorganisms. See also sulfate-reducing microorganism."
    réduction chimique
    fr
  6. ENERGY|coal and mining industries|mining industry

    #646139

    IATE #3528507
    dí-ocsaídiú leictrealaíoch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    electrolytic reduction
    en
    Definition process used to convert highly reactive metal-oxides and metal-chlorides that cannot be easily reduced by chemical reactions into metals Reference "Chemistry http://www.educationalelectronicsusa.com/c/index.htm > Metals and Non-Metals. Part X - Conversion of Ore into Metal Oxide, Reduction of Metal Oxide http://www.educationalelectronicsusa.com/c/metals-X.htm [17.11.2010]"
    Comment The cathode of the cell provides the electrons needed for the metal to free itself from the metal-oxide or metal-chloride bonds.
    réduction électrolytique
    fr
  7. ENVIRONMENT|environmental policy|pollution control measures

    #627589

    IATE #1409316
    dí-ocsaídiú roghnaitheach catalaíoch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    selektive katalytische Reduktion | SCR
    de
    SCR | selective catalytic reduction | selective catalyst reduction | selective catalytic converter reduction
    en
    Definition conversion of NOx pollutants into diatomic nitrogen (N2) and water (H2O) by adding a gaseous reduct to a stream of flue or exhaust gas Reference "COM-Terminology Coordination, based on:Addy Majewski. Selective Catalytic Reduction, https://www.dieselnet.com/tech/cat_scr.php [31.5.2017]"
    réduction catalytique sélective | RCS
    fr
    Definition technologie de post-traitement des gaz d’échappement en aval du moteur qui permet au convertisseur catalytique une réduction importante des émissions polluantes d'oxydes d'azote grâce à l'apport d'une solution d'urée Reference "COM-FR, d'après:Fleetguard, FAQ sur le fluide d'échappement diesel (FED), https://www.cumminsfiltration.com/pdfs/product_lit/americas_brochures/MB10033-FR.pdf [5.3.2015]"
    Comment "Voir aussi:- réduction non catalytique sélective [ IATE:137838 ]"
  8. INDUSTRY|chemistry|chemical industry

    #622480

    IATE #1211577
    dí-ocsaídiú teirmeach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    thermische Reduktion
    de
    thermal reduction
    en
    Definition "reduction [ IATE:1505717 ] of a substance at elevated temperatures in the presence of a reducing agent [ IATE:1423969 ]" Reference "COM-Terminology Coordination, based on:Iamir E. Maloka, S. M. Aliwi and S. A. Naman. Thermal Reduction of CO2 in the Presence of H2S. Petroleum Science and Technology, 24:117–127, 2006, http://www.tandfonline.com/doi/pdf/10.1081/LFT-200041068 [2.6.2017]"
    réduction thermique
    fr