enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Selective non-catalytic reduction - Wikipedia

    en.wikipedia.org/wiki/Selective_non-catalytic...

    Selective non-catalytic reduction (SNCR) is a method to lessen nitrogen oxide emissions in conventional power plants that burn biomass, waste and coal.The process involves injecting either ammonia or urea into the firebox of the boiler at a location where the flue gas is between 1,400 and 2,000 °F (760 and 1,090 °C) to react with the nitrogen oxides formed in the combustion process.

  3. Non-random two-liquid model - Wikipedia

    en.wikipedia.org/wiki/Non-random_two-liquid_model

    VLE of the mixture of chloroform and methanol plus NRTL fit and extrapolation to different pressures. The non-random two-liquid model [1] (abbreviated NRTL model) is an activity coefficient model introduced by Renon and Prausnitz in 1968 that correlates the activity coefficients of a compound with its mole fractions in the liquid phase concerned.

  4. Selective catalytic reduction - Wikipedia

    en.wikipedia.org/wiki/Selective_catalytic_reduction

    The NO x reduction reaction takes place as the gases pass through the catalyst chamber. [3] [4] Before entering the catalyst chamber, ammonia, or other reductant (such as urea), is injected and mixed with the gases.

  5. NOx - Wikipedia

    en.wikipedia.org/wiki/NOx

    Equation 4 relates the concentrations of NO x and ozone, and is known as the Leighton relationship. The time τ {\displaystyle \tau } that is needed to reach a steady state among NO x and ozone is dominated by reaction ( 3 ), which reverses reactions ( 1 )+( 2 ):

  6. List of scientific equations named after people - Wikipedia

    en.wikipedia.org/wiki/List_of_scientific...

    Mayo–Lewis equation: Polymer chemistry: Frank R. Mayo and Frederick M. Lewis: Michaelis–Menten equation: Chemical kinetics: Leonor Michaelis and Maud Menten: Monge–Ampère equation: Calculus: Gaspard Monge and André-Marie Ampère: Morison equation: Fluid dynamics: J. R. Morison: Nahm equations: Differential equations: Werner Nahm: Navier ...

  7. Extent of reaction - Wikipedia

    en.wikipedia.org/wiki/Extent_of_reaction

    This formula leads to the Nernst equation when applied to the oxidation-reduction reaction which generates the voltage of a voltaic cell. Analogously, the relation between the change in reaction enthalpy and enthalpy can be defined. For example, [8] = (),

  8. Chemical equation - Wikipedia

    en.wikipedia.org/wiki/Chemical_equation

    A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.The reactant entities are given on the left-hand side and the product entities are on the right-hand side with a plus sign between the entities in both the reactants and the products, and an arrow that points towards the products to show the direction of the reaction. [1]

  9. Equivalent concentration - Wikipedia

    en.wikipedia.org/wiki/Equivalent_concentration

    There are three common types of chemical reaction where normality is used as a measure of reactive species in solution: In acid-base chemistry, normality is used to express the concentration of hydronium ions (H 3 O +) or hydroxide ions (OH −) in a solution. Here, ⁠ 1 / f eq ⁠ is an integer value. Each solute can produce one or more ...