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  2. Staged combustion - Wikipedia

    en.wikipedia.org/wiki/Staged_combustion

    One form of fuel staged combustion is the procedure known as burner out of service (BOOS). [4] The technique involves shutting off the fuel flow from one burner or more to create fuel-rich and fuel-lean zones, achieving some NO x emission control (10%).

  3. Scrubber - Wikipedia

    en.wikipedia.org/wiki/Scrubber

    Water is the most common solvent used to remove inorganic contaminants, particularly for dust, but solutions of reagents that specifically target certain compounds may also be used. [ 4 ] Process exhaust gas can also contain water-soluble toxic and/or corrosive gases like hydrochloric acid (HCl) or ammonia (NH 3 ).

  4. Exhaust gas recirculation - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas_recirculation

    EGR valve the top of box on top of the inlet manifold of a Saab H engine in a 1987 Saab 90. In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO x) emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines. [1]

  5. Category:NOx control - Wikipedia

    en.wikipedia.org/wiki/Category:NOx_control

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  6. Selective catalytic reduction - Wikipedia

    en.wikipedia.org/wiki/Selective_catalytic_reduction

    This porosity is what gives the catalyst the high surface area needed for reduction of NOx. However, soot, ammonium sulfate, ammonium bisulfate, silica compounds, and other fine particulates can easily clog the pores. Ultrasonic horns and soot blowers can remove most of these contaminants while the unit is online. The unit can also be cleaned ...

  7. Nitrogen Oxide Protocol - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_Oxide_Protocol

    Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution Concerning the Control of Emissions of Nitrogen Oxides or Their Transboundary Fluxes, opened for signature on 31 October 1988 and entered into force on 14 February 1991, was to provide for the control or reduction of nitrogen oxides and their transboundary fluxes.