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  2. Ammonia pollution - Wikipedia

    en.wikipedia.org/wiki/Ammonia_pollution

    The catalytic converters in engines reduce noxious chemical emission, but also cause ammonia to be released as a byproduct. Operation of a three way catalyst converter type causes this. Newer vehicles have reduced ammonia emissions through modifications such as decreasing exhaust temperatures and increasing air to fuel ratios. [7] [15] < 2%

  3. 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.

  4. Ammonia production - Wikipedia

    en.wikipedia.org/wiki/Ammonia_production

    The Haber process, [5] also called the Haber–Bosch process, is the main industrial procedure for the production of ammonia. [ 6 ] [ 7 ] It converts atmospheric nitrogen (N 2 ) to ammonia (NH 3 ) by a reaction with hydrogen (H 2 ) using finely divided iron metal as a catalyst:

  5. Green ammonia could slash emissions from farming - AOL

    www.aol.com/news/green-ammonia-could-slash...

    Making ammonia produces almost 2% of global carbon dioxide emissions.

  6. Haber process - Wikipedia

    en.wikipedia.org/wiki/Haber_process

    The Haber process, [1] also called the Haber–Bosch process, is the main industrial procedure for the production of ammonia. [ 2 ] [ 3 ] It converts atmospheric nitrogen (N 2 ) to ammonia (NH 3 ) by a reaction with hydrogen (H 2 ) using finely divided iron metal as a catalyst:

  7. A NASA-Backed Study Will Test Ammonia as a Carbon-Free ... - AOL

    www.aol.com/nasa-backed-study-test-ammonia...

    The research team will work with a modified Boeing 737 aircraft to test new ammonia-fueled jet engines. A NASA-Backed Study Will Test Ammonia as a Carbon-Free Alternative to Jet Fuel Skip to main ...

  8. Liquid nitrogen wash - Wikipedia

    en.wikipedia.org/wiki/Liquid_nitrogen_wash

    an adsorber unit where solvent traces of an upstream acid gas scrubbing process (e.g. methanol, water), traces of carbon dioxide or other compounds are completely removed in a molecular sieve bed in order to avoid freezing [1] and subsequently blockage in the low temperature process which operates at temperatures down to 80 K (-193 °C or -315 ...

  9. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    The Haber process, [146] also called the Haber–Bosch process, is the main industrial procedure for the production of ammonia. [ 147 ] [ 148 ] It converts atmospheric nitrogen (N 2 ) to ammonia (NH 3 ) by a reaction with hydrogen (H 2 ) using finely divided iron metal as a catalyst: